center: initial schematic

6 files changed, 3445 insertions, 0 deletions

diff --git a/center/center-cache.lib b/center/center-cache.lib
new file mode 100644
index 0000000..aed4919
--- /dev/null
+++ b/center/center-cache.lib
@@ -0,0 +1,338 @@
+EESchema-LIBRARY Version 2.4
+#encoding utf-8
+#
+# Connector_Generic_Conn_01x02
+#
+DEF Connector_Generic_Conn_01x02 J 0 40 Y N 1 F N
+F0 "J" 0 100 50 H V C CNN
+F1 "Connector_Generic_Conn_01x02" 0 -200 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ Connector*:*_1x??_*
+$ENDFPLIST
+DRAW
+S -50 -95 0 -105 1 1 6 N
+S -50 5 0 -5 1 1 6 N
+S -50 50 50 -150 1 1 10 f
+X Pin_1 1 -200 0 150 R 50 50 1 1 P
+X Pin_2 2 -200 -100 150 R 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Connector_Generic_Conn_01x04
+#
+DEF Connector_Generic_Conn_01x04 J 0 40 Y N 1 F N
+F0 "J" 0 200 50 H V C CNN
+F1 "Connector_Generic_Conn_01x04" 0 -300 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ Connector*:*_1x??_*
+$ENDFPLIST
+DRAW
+S -50 -195 0 -205 1 1 6 N
+S -50 -95 0 -105 1 1 6 N
+S -50 5 0 -5 1 1 6 N
+S -50 105 0 95 1 1 6 N
+S -50 150 50 -250 1 1 10 f
+X Pin_1 1 -200 100 150 R 50 50 1 1 P
+X Pin_2 2 -200 0 150 R 50 50 1 1 P
+X Pin_3 3 -200 -100 150 R 50 50 1 1 P
+X Pin_4 4 -200 -200 150 R 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_CP_Small
+#
+DEF Device_CP_Small C 0 10 N N 1 F N
+F0 "C" 10 70 50 H V L CNN
+F1 "Device_CP_Small" 10 -80 50 H V L CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ CP_*
+$ENDFPLIST
+DRAW
+S -60 -12 60 -27 0 1 0 F
+S -60 27 60 12 0 1 0 N
+P 2 0 1 0 -50 60 -30 60 N
+P 2 0 1 0 -40 50 -40 70 N
+X ~ 1 0 100 73 D 50 50 1 1 P
+X ~ 2 0 -100 73 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_C_Small
+#
+DEF Device_C_Small C 0 10 N N 1 F N
+F0 "C" 10 70 50 H V L CNN
+F1 "Device_C_Small" 10 -80 50 H V L CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ C_*
+$ENDFPLIST
+DRAW
+P 2 0 1 13 -60 -20 60 -20 N
+P 2 0 1 12 -60 20 60 20 N
+X ~ 1 0 100 80 D 50 50 1 1 P
+X ~ 2 0 -100 80 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_Crystal_GND24_Small
+#
+DEF Device_Crystal_GND24_Small Y 0 40 Y N 1 F N
+F0 "Y" 50 175 50 H V L CNN
+F1 "Device_Crystal_GND24_Small" 50 100 50 H V L CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ Crystal*
+$ENDFPLIST
+DRAW
+S -30 -60 30 60 0 1 0 N
+P 2 0 1 15 -50 -30 -50 30 N
+P 2 0 1 15 50 -30 50 30 N
+P 4 0 1 0 -50 -50 -50 -75 50 -75 50 -50 N
+P 4 0 1 0 -50 50 -50 75 50 75 50 50 N
+X 1 1 -100 0 50 R 50 50 1 1 P
+X 2 2 0 -125 50 U 50 50 1 1 P
+X 3 3 100 0 50 L 50 50 1 1 P
+X 4 4 0 125 50 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_D_Schottky
+#
+DEF Device_D_Schottky D 0 40 N N 1 F N
+F0 "D" 0 100 50 H V C CNN
+F1 "Device_D_Schottky" 0 -100 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ TO-???*
+ *_Diode_*
+ *SingleDiode*
+ D_*
+$ENDFPLIST
+DRAW
+P 2 0 1 0 50 0 -50 0 N
+P 4 0 1 8 50 50 50 -50 -50 0 50 50 N
+P 6 0 1 8 -75 25 -75 50 -50 50 -50 -50 -25 -50 -25 -25 N
+X K 1 -150 0 100 R 50 50 1 1 P
+X A 2 150 0 100 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_D_Zener_Small_ALT
+#
+DEF Device_D_Zener_Small_ALT D 0 10 N N 1 F N
+F0 "D" 0 90 50 H V C CNN
+F1 "Device_D_Zener_Small_ALT" 0 -90 50 H V C CNN
+F2 "" 0 0 50 V I C CNN
+F3 "" 0 0 50 V I C CNN
+$FPLIST
+ TO-???*
+ *_Diode_*
+ *SingleDiode*
+ D_*
+$ENDFPLIST
+DRAW
+P 2 0 1 0 30 0 -30 0 N
+P 3 0 1 0 -10 40 -30 40 -30 -40 N
+P 4 0 1 0 30 40 -30 0 30 -40 30 40 F
+X K 1 -100 0 70 R 50 50 1 1 P
+X A 2 100 0 70 L 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Device_R_Small
+#
+DEF Device_R_Small R 0 10 N N 1 F N
+F0 "R" 30 20 50 H V L CNN
+F1 "Device_R_Small" 30 -40 50 H V L CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ R_*
+$ENDFPLIST
+DRAW
+S -30 70 30 -70 0 1 8 N
+X ~ 1 0 100 30 D 50 50 1 1 P
+X ~ 2 0 -100 30 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# MCU_ST_STM32F0_STM32F030F4Px
+#
+DEF MCU_ST_STM32F0_STM32F030F4Px U 0 20 Y Y 1 F N
+F0 "U" -400 650 50 H V L CNN
+F1 "MCU_ST_STM32F0_STM32F030F4Px" 200 650 50 H V L CNN
+F2 "Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm" -400 -700 50 H I R CNN
+F3 "" 0 0 50 H I C CNN
+$FPLIST
+ TSSOP*4.4x6.5mm*P0.65mm*
+$ENDFPLIST
+DRAW
+S -400 -700 400 600 0 1 10 f
+X BOOT0 1 -500 300 100 R 50 50 1 1 I
+X PA4 10 500 100 100 L 50 50 1 1 B
+X PA5 11 500 0 100 L 50 50 1 1 B
+X PA6 12 500 -100 100 L 50 50 1 1 B
+X PA7 13 500 -200 100 L 50 50 1 1 B
+X PB1 14 -500 -600 100 R 50 50 1 1 B
+X VSS 15 0 -800 100 U 50 50 1 1 W
+X VDD 16 0 700 100 D 50 50 1 1 W
+X PA9 17 500 -300 100 L 50 50 1 1 B
+X PA10 18 500 -400 100 L 50 50 1 1 B
+X PA13 19 500 -500 100 L 50 50 1 1 B
+X PF0 2 -500 -300 100 R 50 50 1 1 I
+X PA14 20 500 -600 100 L 50 50 1 1 B
+X PF1 3 -500 -400 100 R 50 50 1 1 I
+X NRST 4 -500 500 100 R 50 50 1 1 I
+X VDDA 5 100 700 100 D 50 50 1 1 W
+X PA0 6 500 500 100 L 50 50 1 1 B
+X PA1 7 500 400 100 L 50 50 1 1 B
+X PA2 8 500 300 100 L 50 50 1 1 B
+X PA3 9 500 200 100 L 50 50 1 1 B
+ENDDRAW
+ENDDEF
+#
+# Regulator_Linear_AP1117-33
+#
+DEF Regulator_Linear_AP1117-33 U 0 10 Y Y 1 F N
+F0 "U" -150 125 50 H V C CNN
+F1 "Regulator_Linear_AP1117-33" 0 125 50 H V L CNN
+F2 "Package_TO_SOT_SMD:SOT-223-3_TabPin2" 0 200 50 H I C CNN
+F3 "" 100 -250 50 H I C CNN
+ALIAS AP1117-18 AP1117-25 AP1117-33 AP1117-50 LD1117S33TR_SOT223 LD1117S12TR_SOT223 LD1117S18TR_SOT223 LD1117S25TR_SOT223 LD1117S50TR_SOT223 NCP1117-12_SOT223 NCP1117-1.5_SOT223 NCP1117-1.8_SOT223 NCP1117-2.0_SOT223 NCP1117-2.5_SOT223 NCP1117-2.85_SOT223 NCP1117-3.3_SOT223 NCP1117-5.0_SOT223 AMS1117-1.5 AMS1117-1.8 AMS1117-2.5 AMS1117-2.85 AMS1117-3.3 AMS1117-5.0
+$FPLIST
+ SOT?223*TabPin2*
+$ENDFPLIST
+DRAW
+S -200 -200 200 75 0 1 10 f
+X GND 1 0 -300 100 U 50 50 1 1 W
+X VO 2 300 0 100 L 50 50 1 1 w
+X VI 3 -300 0 100 R 50 50 1 1 W
+ENDDRAW
+ENDDEF
+#
+# Transistor_FET_IRF6710S2
+#
+DEF Transistor_FET_IRF6710S2 Q 0 0 Y N 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "Transistor_FET_IRF6710S2" 200 0 50 H V L CNN
+F2 "Package_DirectFET:DirectFET_S1" 0 0 50 H I C CIN
+F3 "" 0 0 50 H I L CNN
+ALIAS IRF6810S
+$FPLIST
+ DirectFET*S1*
+$ENDFPLIST
+DRAW
+C 65 0 111 0 1 10 N
+C 100 -70 11 0 1 0 F
+C 100 70 11 0 1 0 F
+P 2 0 1 0 -100 0 10 0 N
+P 2 0 1 0 30 -70 100 -70 N
+P 2 0 1 10 30 -50 30 -90 N
+P 2 0 1 0 30 0 100 0 N
+P 2 0 1 10 30 20 30 -20 N
+P 2 0 1 0 30 70 100 70 N
+P 2 0 1 10 30 90 30 50 N
+P 2 0 1 0 100 -70 100 -100 N
+P 2 0 1 0 100 -70 100 0 N
+P 2 0 1 0 100 100 100 70 N
+P 3 0 1 10 10 75 10 -75 10 -75 N
+P 4 0 1 0 40 0 80 15 80 -15 40 0 F
+P 4 0 1 0 100 -70 130 -70 130 70 100 70 N
+P 4 0 1 0 110 20 115 15 145 15 150 10 N
+P 4 0 1 0 130 15 115 -10 145 -10 130 15 N
+X D 1 100 200 100 D 50 50 1 1 P
+X G 2 -200 0 100 R 50 50 1 1 I
+X S 3 100 -200 100 U 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# Transistor_FET_IRLML6402
+#
+DEF Transistor_FET_IRLML6402 Q 0 0 Y N 1 F N
+F0 "Q" 200 75 50 H V L CNN
+F1 "Transistor_FET_IRLML6402" 200 0 50 H V L CNN
+F2 "Package_TO_SOT_SMD:SOT-23" 200 -75 50 H I L CIN
+F3 "" 0 0 50 H I L CNN
+ALIAS VP0610T BSS84 NTR2101P BSS83P Si2319CDS IRLML6402
+$FPLIST
+ SOT?23*
+$ENDFPLIST
+DRAW
+C 65 0 111 0 1 10 N
+C 100 -70 11 0 1 0 F
+C 100 70 11 0 1 0 F
+P 2 0 1 0 -100 0 10 0 N
+P 2 0 1 0 30 -70 100 -70 N
+P 2 0 1 10 30 -50 30 -90 N
+P 2 0 1 0 30 0 100 0 N
+P 2 0 1 10 30 20 30 -20 N
+P 2 0 1 0 30 70 100 70 N
+P 2 0 1 10 30 90 30 50 N
+P 2 0 1 0 100 -70 100 -100 N
+P 2 0 1 0 100 -70 100 0 N
+P 2 0 1 0 100 100 100 70 N
+P 3 0 1 10 10 75 10 -75 10 -75 N
+P 4 0 1 0 90 0 50 -15 50 15 90 0 F
+P 4 0 1 0 100 -70 130 -70 130 70 100 70 N
+P 4 0 1 0 110 -20 115 -15 145 -15 150 -10 N
+P 4 0 1 0 130 -15 115 10 145 10 130 -15 N
+X G 1 -200 0 100 R 50 50 1 1 I
+X S 2 100 -200 100 U 50 50 1 1 P
+X D 3 100 200 100 D 50 50 1 1 P
+ENDDRAW
+ENDDEF
+#
+# power_+12V
+#
+DEF power_+12V #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -150 50 H I C CNN
+F1 "power_+12V" 0 140 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 2 0 1 0 -30 50 0 100 N
+P 2 0 1 0 0 0 0 100 N
+P 2 0 1 0 0 100 30 50 N
+X +12V 1 0 0 0 U 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+# power_+3.3V
+#
+DEF power_+3.3V #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -150 50 H I C CNN
+F1 "power_+3.3V" 0 140 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+ALIAS +3.3V
+DRAW
+P 2 0 1 0 -30 50 0 100 N
+P 2 0 1 0 0 0 0 100 N
+P 2 0 1 0 0 100 30 50 N
+X +3V3 1 0 0 0 U 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+# power_GND
+#
+DEF power_GND #PWR 0 0 Y Y 1 F P
+F0 "#PWR" 0 -250 50 H I C CNN
+F1 "power_GND" 0 -150 50 H V C CNN
+F2 "" 0 0 50 H I C CNN
+F3 "" 0 0 50 H I C CNN
+DRAW
+P 6 0 1 0 0 0 0 -50 50 -50 0 -100 -50 -50 0 -50 N
+X GND 1 0 0 0 D 50 50 1 1 W N
+ENDDRAW
+ENDDEF
+#
+#End Library
diff --git a/center/center.bak b/center/center.bak
new file mode 100644
index 0000000..02ad340
--- /dev/null
+++ b/center/center.bak
@@ -0,0 +1,1183 @@
+EESchema Schematic File Version 4
+EELAYER 26 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
+Comment2 ""
+Comment3 ""
+Comment4 ""
+$EndDescr
+$Comp
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+F 1 "STM32F030F4P6" H 3800 5600 50  0000 C CNN
+F 2 "Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm" H 2900 4150 50  0001 R CNN
+F 3 "http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00088500.pdf" H 3300 4850 50  0001 C CNN
+	1    3300 4850
+	1    0    0    -1  
+$EndComp
+$Comp
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+U 1 1 5C19682A
+P 7050 1650
+F 0 "U1" H 7050 1892 50  0000 C CNN
+F 1 "AP1117-33" H 7050 1801 50  0000 C CNN
+F 2 "Package_TO_SOT_SMD:SOT-223-3_TabPin2" H 7050 1850 50  0001 C CNN
+F 3 "http://www.diodes.com/datasheets/AP1117.pdf" H 7150 1400 50  0001 C CNN
+	1    7050 1650
+	1    0    0    -1  
+$EndComp
+$Comp
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+U 1 1 5C196961
+P 2500 1800
+F 0 "J1" H 2650 1750 50  0000 C CNN
+F 1 "top left" H 2420 1566 50  0000 C CNN
+F 2 "" H 2500 1800 50  0001 C CNN
+F 3 "~" H 2500 1800 50  0001 C CNN
+	1    2500 1800
+	-1   0    0    1   
+$EndComp
+$Comp
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+F 2 "" H 2500 2200 50  0001 C CNN
+F 3 "~" H 2500 2200 50  0001 C CNN
+	1    2500 2200
+	-1   0    0    1   
+$EndComp
+$Comp
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+F 2 "" H 2500 2600 50  0001 C CNN
+F 3 "~" H 2500 2600 50  0001 C CNN
+	1    2500 2600
+	-1   0    0    1   
+$EndComp
+$Comp
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+F 2 "" H 2500 3000 50  0001 C CNN
+F 3 "~" H 2500 3000 50  0001 C CNN
+	1    2500 3000
+	-1   0    0    1   
+$EndComp
+$Comp
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+F 2 "" H 4850 1900 50  0001 C CNN
+F 3 "~" H 4850 1900 50  0001 C CNN
+	1    4850 1900
+	0    -1   1    0   
+$EndComp
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+F 2 "" H 4850 2400 50  0001 C CNN
+F 3 "~" H 4850 2400 50  0001 C CNN
+	1    4850 2400
+	0    -1   1    0   
+$EndComp
+$Comp
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+F 1 "SS510" V 5295 1821 50  0000 R CNN
+F 2 "" H 5250 1900 50  0001 C CNN
+F 3 "~" H 5250 1900 50  0001 C CNN
+	1    5250 1900
+	0    -1   1    0   
+$EndComp
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+F 1 "SS510" V 5295 2321 50  0000 R CNN
+F 2 "" H 5250 2400 50  0001 C CNN
+F 3 "~" H 5250 2400 50  0001 C CNN
+	1    5250 2400
+	0    -1   1    0   
+$EndComp
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+F 2 "" H 5700 2200 50  0001 C CNN
+F 3 "~" H 5700 2200 50  0001 C CNN
+	1    5700 2200
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+F 2 "" H 7600 2200 50  0001 C CNN
+F 3 "~" H 7600 2200 50  0001 C CNN
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+F 3 "~" H 6500 2200 50  0001 C CNN
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+F 2 "" H 8050 2200 50  0001 C CNN
+F 3 "~" H 8050 2200 50  0001 C CNN
+	1    8050 2200
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+F 2 "" H 8400 2200 50  0001 C CNN
+F 3 "~" H 8400 2200 50  0001 C CNN
+	1    8400 2200
+	1    0    0    -1  
+$EndComp
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 6500 3350
+Wire Wire Line
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+F 2 "" H 3950 2500 50  0001 C CNN
+F 3 "~" H 3950 2500 50  0001 C CNN
+	1    3950 2500
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+$Comp
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+F 0 "R2" H 4309 2546 50  0000 L CNN
+F 1 "10k" H 4309 2455 50  0000 L CNN
+F 2 "" H 4250 2500 50  0001 C CNN
+F 3 "~" H 4250 2500 50  0001 C CNN
+	1    4250 2500
+	1    0    0    -1  
+$EndComp
+$Comp
+L Device:R_Small R4
+U 1 1 5C1BB077
+P 4250 3100
+F 0 "R4" H 4309 3146 50  0000 L CNN
+F 1 "3k3" H 4309 3055 50  0000 L CNN
+F 2 "" H 4250 3100 50  0001 C CNN
+F 3 "~" H 4250 3100 50  0001 C CNN
+	1    4250 3100
+	1    0    0    -1  
+$EndComp
+$Comp
+L Device:R_Small R3
+U 1 1 5C1BC19C
+P 3950 3100
+F 0 "R3" H 4009 3146 50  0000 L CNN
+F 1 "3k3" H 4009 3055 50  0000 L CNN
+F 2 "" H 3950 3100 50  0001 C CNN
+F 3 "~" H 3950 3100 50  0001 C CNN
+	1    3950 3100
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3950 3000 3950 2850
+Wire Wire Line
+	3950 2400 3950 2100
+Connection ~ 3950 2100
+Wire Wire Line
+	3950 2100 3150 2100
+Wire Wire Line
+	4250 2200 4250 2400
+Connection ~ 4250 2200
+Wire Wire Line
+	4250 2200 5250 2200
+Wire Wire Line
+	4250 2600 4250 2750
+Wire Wire Line
+	4250 3200 4250 3350
+Wire Wire Line
+	4250 3350 3950 3350
+Wire Wire Line
+	3950 3350 3950 3200
+Wire Wire Line
+	4250 3350 4550 3350
+Connection ~ 4250 3350
+Connection ~ 4850 3350
+$Comp
+L Device:D_Schottky D6
+U 1 1 5C1CFB2A
+P 4550 3100
+F 0 "D6" V 4550 3179 50  0000 L CNN
+F 1 "D_Schottky" V 4595 3179 50  0001 L CNN
+F 2 "" H 4550 3100 50  0001 C CNN
+F 3 "~" H 4550 3100 50  0001 C CNN
+	1    4550 3100
+	0    1    1    0   
+$EndComp
+$Comp
+L Device:D_Schottky D5
+U 1 1 5C1D3E90
+P 3650 3100
+F 0 "D5" V 3650 3179 50  0000 L CNN
+F 1 "D_Schottky" V 3695 3179 50  0001 L CNN
+F 2 "" H 3650 3100 50  0001 C CNN
+F 3 "~" H 3650 3100 50  0001 C CNN
+	1    3650 3100
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	3650 2950 3650 2850
+Wire Wire Line
+	3650 2850 3950 2850
+Connection ~ 3950 2850
+Wire Wire Line
+	3950 2850 3950 2750
+Wire Wire Line
+	4250 2850 4550 2850
+Wire Wire Line
+	4550 2850 4550 2950
+Connection ~ 4250 2850
+Wire Wire Line
+	4250 2850 4250 3000
+Wire Wire Line
+	4550 3250 4550 3350
+Wire Wire Line
+	4550 3350 4850 3350
+Connection ~ 4550 3350
+Wire Wire Line
+	3950 3350 3650 3350
+Wire Wire Line
+	3650 3350 3650 3250
+Connection ~ 3950 3350
+Wire Wire Line
+	3550 2750 3950 2750
+Connection ~ 3950 2750
+Wire Wire Line
+	3950 2750 3950 2600
+Wire Wire Line
+	4650 2750 4250 2750
+Connection ~ 4250 2750
+Wire Wire Line
+	4250 2750 4250 2850
+Text Label 3550 2750 0    50   ~ 0
+Vmeas_A
+Text Label 4650 2750 2    50   ~ 0
+Vmeas_B
+Text Label 4200 4450 2    50   ~ 0
+Vmeas_B
+Text Label 4200 4350 2    50   ~ 0
+Vmeas_A
+Wire Wire Line
+	4200 4350 3800 4350
+Wire Wire Line
+	3800 4450 4200 4450
+$Comp
+L Transistor_FET:IRF6710S2 Q3
+U 1 1 5C1F9130
+P 5250 5450
+F 0 "Q3" H 5455 5496 50  0000 L CNN
+F 1 "AO3400" H 5455 5405 50  0000 L CNN
+F 2 "Package_DirectFET:DirectFET_S1" H 5250 5450 50  0001 C CIN
+F 3 "https://www.infineon.com/dgdl/irf6710s2pbf.pdf?fileId=5546d462533600a4015355ece3db1a78" H 5250 5450 50  0001 L CNN
+	1    5250 5450
+	1    0    0    -1  
+$EndComp
+$Comp
+L Device:R_Small R10
+U 1 1 5C1F9EE6
+P 5350 5050
+F 0 "R10" H 5409 5096 50  0000 L CNN
+F 1 "620" H 5409 5005 50  0000 L CNN
+F 2 "" H 5350 5050 50  0001 C CNN
+F 3 "~" H 5350 5050 50  0001 C CNN
+	1    5350 5050
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5250 3350 5700 3350
+Connection ~ 5250 3350
+Connection ~ 5700 3350
+$Comp
+L power:+3.3V #PWR0101
+U 1 1 5C2174D4
+P 8750 1650
+F 0 "#PWR0101" H 8750 1500 50  0001 C CNN
+F 1 "+3.3V" V 8765 1778 50  0000 L CNN
+F 2 "" H 8750 1650 50  0001 C CNN
+F 3 "" H 8750 1650 50  0001 C CNN
+	1    8750 1650
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	8750 1650 8400 1650
+Connection ~ 8400 1650
+$Comp
+L power:GND #PWR0102
+U 1 1 5C21CDD5
+P 8750 3350
+F 0 "#PWR0102" H 8750 3100 50  0001 C CNN
+F 1 "GND" V 8755 3222 50  0000 R CNN
+F 2 "" H 8750 3350 50  0001 C CNN
+F 3 "" H 8750 3350 50  0001 C CNN
+	1    8750 3350
+	0    -1   -1   0   
+$EndComp
+Wire Wire Line
+	8750 3350 8400 3350
+Connection ~ 8400 3350
+$Comp
+L power:+12V #PWR0103
+U 1 1 5C2201CD
+P 6650 1200
+F 0 "#PWR0103" H 6650 1050 50  0001 C CNN
+F 1 "+12V" V 6665 1328 50  0000 L CNN
+F 2 "" H 6650 1200 50  0001 C CNN
+F 3 "" H 6650 1200 50  0001 C CNN
+	1    6650 1200
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	6650 1200 6500 1200
+Wire Wire Line
+	6500 1200 6500 1650
+$Comp
+L power:+3.3V #PWR0104
+U 1 1 5C223C57
+P 3400 3950
+F 0 "#PWR0104" H 3400 3800 50  0001 C CNN
+F 1 "+3.3V" H 3415 4123 50  0000 C CNN
+F 2 "" H 3400 3950 50  0001 C CNN
+F 3 "" H 3400 3950 50  0001 C CNN
+	1    3400 3950
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3400 3950 3400 4050
+Connection ~ 3400 4050
+$Comp
+L power:GND #PWR0105
+U 1 1 5C22656D
+P 3300 5750
+F 0 "#PWR0105" H 3300 5500 50  0001 C CNN
+F 1 "GND" H 3305 5577 50  0000 C CNN
+F 2 "" H 3300 5750 50  0001 C CNN
+F 3 "" H 3300 5750 50  0001 C CNN
+	1    3300 5750
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:GND #PWR0106
+U 1 1 5C2270D7
+P 5350 5900
+F 0 "#PWR0106" H 5350 5650 50  0001 C CNN
+F 1 "GND" H 5355 5727 50  0000 C CNN
+F 2 "" H 5350 5900 50  0001 C CNN
+F 3 "" H 5350 5900 50  0001 C CNN
+	1    5350 5900
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:+12V #PWR0107
+U 1 1 5C227D6B
+P 5350 4850
+F 0 "#PWR0107" H 5350 4700 50  0001 C CNN
+F 1 "+12V" H 5365 5023 50  0000 C CNN
+F 2 "" H 5350 4850 50  0001 C CNN
+F 3 "" H 5350 4850 50  0001 C CNN
+	1    5350 4850
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5350 5650 5350 5850
+Wire Wire Line
+	5350 5150 5350 5250
+Wire Wire Line
+	5350 4850 5350 4950
+$Comp
+L Device:R_Small R11
+U 1 1 5C234E1F
+P 4750 5450
+F 0 "R11" V 4554 5450 50  0000 C CNN
+F 1 "0" V 4645 5450 50  0000 C CNN
+F 2 "" H 4750 5450 50  0001 C CNN
+F 3 "~" H 4750 5450 50  0001 C CNN
+	1    4750 5450
+	0    1    1    0   
+$EndComp
+$Comp
+L Device:C_Small C12
+U 1 1 5C23632F
+P 4950 5650
+F 0 "C12" H 5042 5696 50  0000 L CNN
+F 1 "0" H 5042 5605 50  0000 L CNN
+F 2 "" H 4950 5650 50  0001 C CNN
+F 3 "~" H 4950 5650 50  0001 C CNN
+	1    4950 5650
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5350 5850 4950 5850
+Wire Wire Line
+	4950 5850 4950 5750
+Connection ~ 5350 5850
+Wire Wire Line
+	5350 5850 5350 5900
+Wire Wire Line
+	4950 5550 4950 5450
+Wire Wire Line
+	4950 5450 4850 5450
+Wire Wire Line
+	4950 5450 5050 5450
+Connection ~ 4950 5450
+Wire Wire Line
+	4400 5450 4650 5450
+Text Label 4400 5450 0    50   ~ 0
+LOAD
+$Comp
+L Transistor_FET:IRF6710S2 Q4
+U 1 1 5C24FD36
+P 6850 5450
+F 0 "Q4" H 7055 5496 50  0000 L CNN
+F 1 "AO3400" H 7055 5405 50  0000 L CNN
+F 2 "Package_DirectFET:DirectFET_S1" H 6850 5450 50  0001 C CIN
+F 3 "https://www.infineon.com/dgdl/irf6710s2pbf.pdf?fileId=5546d462533600a4015355ece3db1a78" H 6850 5450 50  0001 L CNN
+	1    6850 5450
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:GND #PWR0108
+U 1 1 5C24FD42
+P 6950 5900
+F 0 "#PWR0108" H 6950 5650 50  0001 C CNN
+F 1 "GND" H 6955 5727 50  0000 C CNN
+F 2 "" H 6950 5900 50  0001 C CNN
+F 3 "" H 6950 5900 50  0001 C CNN
+	1    6950 5900
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6950 5650 6950 5850
+Wire Wire Line
+	6950 5150 6950 5250
+$Comp
+L Device:R_Small R12
+U 1 1 5C24FD4B
+P 6350 5450
+F 0 "R12" V 6154 5450 50  0000 C CNN
+F 1 "0" V 6245 5450 50  0000 C CNN
+F 2 "" H 6350 5450 50  0001 C CNN
+F 3 "~" H 6350 5450 50  0001 C CNN
+	1    6350 5450
+	0    1    1    0   
+$EndComp
+$Comp
+L Device:C_Small C13
+U 1 1 5C24FD51
+P 6550 5650
+F 0 "C13" H 6642 5696 50  0000 L CNN
+F 1 "0" H 6642 5605 50  0000 L CNN
+F 2 "" H 6550 5650 50  0001 C CNN
+F 3 "~" H 6550 5650 50  0001 C CNN
+	1    6550 5650
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6950 5850 6550 5850
+Wire Wire Line
+	6550 5850 6550 5750
+Connection ~ 6950 5850
+Wire Wire Line
+	6950 5850 6950 5900
+Wire Wire Line
+	6550 5550 6550 5450
+Wire Wire Line
+	6550 5450 6450 5450
+Wire Wire Line
+	6550 5450 6650 5450
+Connection ~ 6550 5450
+Wire Wire Line
+	6050 5450 6250 5450
+Text Label 6050 5450 0    50   ~ 0
+CH1
+Text Label 7150 5150 2    50   ~ 0
+Q1
+Wire Wire Line
+	7150 5150 6950 5150
+$Comp
+L Transistor_FET:IRF6710S2 Q1
+U 1 1 5C265A5A
+P 6850 4350
+F 0 "Q1" H 7055 4396 50  0000 L CNN
+F 1 "AO3400" H 7055 4305 50  0000 L CNN
+F 2 "Package_DirectFET:DirectFET_S1" H 6850 4350 50  0001 C CIN
+F 3 "https://www.infineon.com/dgdl/irf6710s2pbf.pdf?fileId=5546d462533600a4015355ece3db1a78" H 6850 4350 50  0001 L CNN
+	1    6850 4350
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:GND #PWR0109
+U 1 1 5C265A60
+P 6950 4800
+F 0 "#PWR0109" H 6950 4550 50  0001 C CNN
+F 1 "GND" H 6955 4627 50  0000 C CNN
+F 2 "" H 6950 4800 50  0001 C CNN
+F 3 "" H 6950 4800 50  0001 C CNN
+	1    6950 4800
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6950 4550 6950 4750
+Wire Wire Line
+	6950 4050 6950 4150
+$Comp
+L Device:R_Small R6
+U 1 1 5C265A68
+P 6350 4350
+F 0 "R6" V 6154 4350 50  0000 C CNN
+F 1 "0" V 6245 4350 50  0000 C CNN
+F 2 "" H 6350 4350 50  0001 C CNN
+F 3 "~" H 6350 4350 50  0001 C CNN
+	1    6350 4350
+	0    1    1    0   
+$EndComp
+$Comp
+L Device:C_Small C8
+U 1 1 5C265A6E
+P 6550 4550
+F 0 "C8" H 6642 4596 50  0000 L CNN
+F 1 "0" H 6642 4505 50  0000 L CNN
+F 2 "" H 6550 4550 50  0001 C CNN
+F 3 "~" H 6550 4550 50  0001 C CNN
+	1    6550 4550
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6950 4750 6550 4750
+Wire Wire Line
+	6550 4750 6550 4650
+Connection ~ 6950 4750
+Wire Wire Line
+	6950 4750 6950 4800
+Wire Wire Line
+	6550 4450 6550 4350
+Wire Wire Line
+	6550 4350 6450 4350
+Wire Wire Line
+	6550 4350 6650 4350
+Connection ~ 6550 4350
+Wire Wire Line
+	6050 4350 6250 4350
+Text Label 6050 4350 0    50   ~ 0
+CH0
+Text Label 7150 4050 2    50   ~ 0
+Q0
+Wire Wire Line
+	7150 4050 6950 4050
+$Comp
+L Transistor_FET:IRLML6402 Q2
+U 1 1 5C26D08A
+P 8700 4600
+F 0 "Q2" H 8905 4554 50  0000 L CNN
+F 1 "IRLML6402" H 8905 4645 50  0000 L CNN
+F 2 "Package_TO_SOT_SMD:SOT-23" H 8900 4525 50  0001 L CIN
+F 3 "https://www.infineon.com/dgdl/irlml6402pbf.pdf?fileId=5546d462533600a401535668d5c2263c" H 8700 4600 50  0001 L CNN
+	1    8700 4600
+	1    0    0    1   
+$EndComp
+$Comp
+L Device:R_Small R7
+U 1 1 5C270B70
+P 8400 4400
+F 0 "R7" H 8341 4354 50  0000 R CNN
+F 1 "10k" H 8341 4445 50  0000 R CNN
+F 2 "" H 8400 4400 50  0001 C CNN
+F 3 "~" H 8400 4400 50  0001 C CNN
+	1    8400 4400
+	-1   0    0    1   
+$EndComp
+$Comp
+L power:+12V #PWR0110
+U 1 1 5C271E21
+P 8800 4100
+F 0 "#PWR0110" H 8800 3950 50  0001 C CNN
+F 1 "+12V" H 8815 4273 50  0000 C CNN
+F 2 "" H 8800 4100 50  0001 C CNN
+F 3 "" H 8800 4100 50  0001 C CNN
+	1    8800 4100
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	8800 4100 8800 4200
+Wire Wire Line
+	8800 4200 8400 4200
+Wire Wire Line
+	8400 4200 8400 4300
+Wire Wire Line
+	8800 4200 8800 4400
+Connection ~ 8800 4200
+Wire Wire Line
+	8500 4600 8400 4600
+Wire Wire Line
+	8400 4600 8400 4500
+$Comp
+L Device:C_Small C7
+U 1 1 5C27E2DD
+P 8200 4400
+F 0 "C7" H 8000 4450 50  0000 L CNN
+F 1 "0" H 8050 4350 50  0000 L CNN
+F 2 "" H 8200 4400 50  0001 C CNN
+F 3 "~" H 8200 4400 50  0001 C CNN
+	1    8200 4400
+	1    0    0    -1  
+$EndComp
+$Comp
+L Device:D_Zener_Small_ALT D7
+U 1 1 5C280B09
+P 7700 4600
+F 0 "D7" H 7700 4500 50  0000 L CNN
+F 1 "8V2" H 7650 4700 50  0000 L CNN
+F 2 "" V 7700 4600 50  0001 C CNN
+F 3 "~" V 7700 4600 50  0001 C CNN
+	1    7700 4600
+	-1   0    0    1   
+$EndComp
+Connection ~ 8400 4600
+Wire Wire Line
+	8200 4300 8200 4200
+Wire Wire Line
+	8200 4200 8400 4200
+Connection ~ 8400 4200
+Wire Wire Line
+	8200 4500 8200 4600
+Wire Wire Line
+	8200 4600 8400 4600
+$Comp
+L Device:R_Small R9
+U 1 1 5C2AA0AC
+P 8000 4600
+F 0 "R9" V 7900 4550 50  0000 C CNN
+F 1 "0" V 8100 4600 50  0000 C CNN
+F 2 "" H 8000 4600 50  0001 C CNN
+F 3 "~" H 8000 4600 50  0001 C CNN
+	1    8000 4600
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	8800 4800 8800 4900
+Wire Wire Line
+	8800 4900 9050 4900
+Text Label 9050 4900 2    50   ~ 0
+Q2
+Wire Wire Line
+	8200 4600 8100 4600
+Connection ~ 8200 4600
+Wire Wire Line
+	7900 4600 7800 4600
+Wire Wire Line
+	7400 4600 7600 4600
+Text Label 7400 4600 0    50   ~ 0
+CH2
+$Comp
+L Transistor_FET:IRLML6402 Q5
+U 1 1 5C2DA7FA
+P 8700 5700
+F 0 "Q5" H 8905 5654 50  0000 L CNN
+F 1 "IRLML6402" H 8905 5745 50  0000 L CNN
+F 2 "Package_TO_SOT_SMD:SOT-23" H 8900 5625 50  0001 L CIN
+F 3 "https://www.infineon.com/dgdl/irlml6402pbf.pdf?fileId=5546d462533600a401535668d5c2263c" H 8700 5700 50  0001 L CNN
+	1    8700 5700
+	1    0    0    1   
+$EndComp
+$Comp
+L Device:R_Small R13
+U 1 1 5C2DA800
+P 8400 5500
+F 0 "R13" H 8341 5454 50  0000 R CNN
+F 1 "10k" H 8341 5545 50  0000 R CNN
+F 2 "" H 8400 5500 50  0001 C CNN
+F 3 "~" H 8400 5500 50  0001 C CNN
+	1    8400 5500
+	-1   0    0    1   
+$EndComp
+$Comp
+L power:+12V #PWR0111
+U 1 1 5C2DA806
+P 8800 5200
+F 0 "#PWR0111" H 8800 5050 50  0001 C CNN
+F 1 "+12V" H 8815 5373 50  0000 C CNN
+F 2 "" H 8800 5200 50  0001 C CNN
+F 3 "" H 8800 5200 50  0001 C CNN
+	1    8800 5200
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	8800 5200 8800 5300
+Wire Wire Line
+	8800 5300 8400 5300
+Wire Wire Line
+	8400 5300 8400 5400
+Wire Wire Line
+	8800 5300 8800 5500
+Connection ~ 8800 5300
+Wire Wire Line
+	8500 5700 8400 5700
+Wire Wire Line
+	8400 5700 8400 5600
+$Comp
+L Device:C_Small C11
+U 1 1 5C2DA813
+P 8200 5500
+F 0 "C11" H 8000 5550 50  0000 L CNN
+F 1 "0" H 8050 5450 50  0000 L CNN
+F 2 "" H 8200 5500 50  0001 C CNN
+F 3 "~" H 8200 5500 50  0001 C CNN
+	1    8200 5500
+	1    0    0    -1  
+$EndComp
+$Comp
+L Device:D_Zener_Small_ALT D8
+U 1 1 5C2DA819
+P 7700 5700
+F 0 "D8" H 7700 5600 50  0000 L CNN
+F 1 "8V2" H 7650 5800 50  0000 L CNN
+F 2 "" V 7700 5700 50  0001 C CNN
+F 3 "~" V 7700 5700 50  0001 C CNN
+	1    7700 5700
+	-1   0    0    1   
+$EndComp
+Connection ~ 8400 5700
+Wire Wire Line
+	8200 5400 8200 5300
+Wire Wire Line
+	8200 5300 8400 5300
+Connection ~ 8400 5300
+Wire Wire Line
+	8200 5600 8200 5700
+Wire Wire Line
+	8200 5700 8400 5700
+$Comp
+L Device:R_Small R14
+U 1 1 5C2DA825
+P 8000 5700
+F 0 "R14" V 7900 5650 50  0000 C CNN
+F 1 "0" V 8100 5700 50  0000 C CNN
+F 2 "" H 8000 5700 50  0001 C CNN
+F 3 "~" H 8000 5700 50  0001 C CNN
+	1    8000 5700
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	8800 5900 8800 6000
+Wire Wire Line
+	8800 6000 9050 6000
+Text Label 9050 6000 2    50   ~ 0
+Q3
+Wire Wire Line
+	8200 5700 8100 5700
+Connection ~ 8200 5700
+Wire Wire Line
+	7900 5700 7800 5700
+Wire Wire Line
+	7400 5700 7600 5700
+Text Label 7400 5700 0    50   ~ 0
+CH3
+Wire Wire Line
+	4200 4550 3800 4550
+Wire Wire Line
+	4200 4650 3800 4650
+Wire Wire Line
+	4200 4750 3800 4750
+Wire Wire Line
+	4200 4950 3800 4950
+Wire Wire Line
+	4200 5050 3800 5050
+Text Label 4200 4550 2    50   ~ 0
+LOAD
+Text Label 4200 4650 2    50   ~ 0
+CH0
+Text Label 4200 4750 2    50   ~ 0
+CH1
+Text Label 4200 4950 2    50   ~ 0
+CH2
+Text Label 4200 5050 2    50   ~ 0
+CH3
+$Comp
+L Device:Crystal_GND24_Small Y1
+U 1 1 5C30EB37
+P 2250 5200
+F 0 "Y1" V 2050 5050 50  0000 L CNN
+F 1 "8MHz" V 2050 5250 50  0000 L CNN
+F 2 "" H 2250 5200 50  0001 C CNN
+F 3 "~" H 2250 5200 50  0001 C CNN
+	1    2250 5200
+	0    1    1    0   
+$EndComp
+$Comp
+L Device:C_Small C10
+U 1 1 5C310CD7
+P 2250 5500
+F 0 "C10" H 2342 5546 50  0000 L CNN
+F 1 "12p" H 2342 5455 50  0000 L CNN
+F 2 "" H 2250 5500 50  0001 C CNN
+F 3 "~" H 2250 5500 50  0001 C CNN
+	1    2250 5500
+	1    0    0    -1  
+$EndComp
+$Comp
+L Device:C_Small C9
+U 1 1 5C31388F
+P 1900 5500
+F 0 "C9" H 1700 5600 50  0000 L CNN
+F 1 "12p" H 1700 5400 50  0000 L CNN
+F 2 "" H 1900 5500 50  0001 C CNN
+F 3 "~" H 1900 5500 50  0001 C CNN
+	1    1900 5500
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:GND #PWR0112
+U 1 1 5C31422D
+P 2250 5800
+F 0 "#PWR0112" H 2250 5550 50  0001 C CNN
+F 1 "GND" H 2255 5627 50  0000 C CNN
+F 2 "" H 2250 5800 50  0001 C CNN
+F 3 "" H 2250 5800 50  0001 C CNN
+	1    2250 5800
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	2250 5800 2250 5750
+Wire Wire Line
+	1900 5600 1900 5750
+Wire Wire Line
+	1900 5750 2050 5750
+Connection ~ 2250 5750
+Wire Wire Line
+	2250 5750 2250 5650
+Wire Wire Line
+	2250 5650 2500 5650
+Wire Wire Line
+	2500 5650 2500 5200
+Wire Wire Line
+	2375 5200 2500 5200
+Connection ~ 2250 5650
+Wire Wire Line
+	2250 5650 2250 5600
+Wire Wire Line
+	2050 5200 2050 5750
+Wire Wire Line
+	2050 5200 2125 5200
+Connection ~ 2050 5750
+Wire Wire Line
+	2050 5750 2250 5750
+Wire Wire Line
+	2250 5100 2800 5100
+Wire Wire Line
+	2800 5100 2800 5150
+Wire Wire Line
+	2250 5300 2800 5300
+Wire Wire Line
+	2800 5300 2800 5250
+Wire Wire Line
+	2250 5300 2250 5400
+Connection ~ 2250 5300
+Wire Wire Line
+	2250 5100 1900 5100
+Wire Wire Line
+	1900 5100 1900 5400
+Connection ~ 2250 5100
+$Comp
+L Device:R_Small R5
+U 1 1 5C36FD60
+P 2600 4350
+F 0 "R5" V 2500 4250 50  0000 C CNN
+F 1 "0" V 2500 4450 50  0000 C CNN
+F 2 "" H 2600 4350 50  0001 C CNN
+F 3 "~" H 2600 4350 50  0001 C CNN
+	1    2600 4350
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	2700 4350 2800 4350
+$Comp
+L power:+3.3V #PWR0113
+U 1 1 5C3785CA
+P 2400 4350
+F 0 "#PWR0113" H 2400 4200 50  0001 C CNN
+F 1 "+3.3V" V 2415 4478 50  0000 L CNN
+F 2 "" H 2400 4350 50  0001 C CNN
+F 3 "" H 2400 4350 50  0001 C CNN
+	1    2400 4350
+	0    -1   -1   0   
+$EndComp
+Wire Wire Line
+	2400 4350 2500 4350
+$Comp
+L power:GND #PWR0114
+U 1 1 5C38237A
+P 2400 4550
+F 0 "#PWR0114" H 2400 4300 50  0001 C CNN
+F 1 "GND" V 2405 4422 50  0000 R CNN
+F 2 "" H 2400 4550 50  0001 C CNN
+F 3 "" H 2400 4550 50  0001 C CNN
+	1    2400 4550
+	0    1    1    0   
+$EndComp
+$Comp
+L Device:R_Small R8
+U 1 1 5C382D39
+P 2600 4550
+F 0 "R8" V 2500 4450 50  0000 C CNN
+F 1 "0" V 2500 4650 50  0000 C CNN
+F 2 "" H 2600 4550 50  0001 C CNN
+F 3 "~" H 2600 4550 50  0001 C CNN
+	1    2600 4550
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	2400 4550 2500 4550
+Wire Wire Line
+	2700 4550 2800 4550
+Wire Wire Line
+	4200 5350 3800 5350
+Wire Wire Line
+	4200 5450 3800 5450
+Text Label 4200 5350 2    50   ~ 0
+SWDIO
+Text Label 4200 5450 2    50   ~ 0
+SWCLK
+$Comp
+L Connector_Generic:Conn_01x04 J5
+U 1 1 5C3B6CB2
+P 4700 4100
+F 0 "J5" H 4620 4417 50  0000 C CNN
+F 1 "SWD" H 4620 4326 50  0000 C CNN
+F 2 "" H 4700 4100 50  0001 C CNN
+F 3 "~" H 4700 4100 50  0001 C CNN
+	1    4700 4100
+	-1   0    0    -1  
+$EndComp
+$Comp
+L power:+3.3V #PWR0115
+U 1 1 5C3BBC57
+P 5250 4000
+F 0 "#PWR0115" H 5250 3850 50  0001 C CNN
+F 1 "+3.3V" V 5265 4128 50  0000 L CNN
+F 2 "" H 5250 4000 50  0001 C CNN
+F 3 "" H 5250 4000 50  0001 C CNN
+	1    5250 4000
+	0    1    1    0   
+$EndComp
+$Comp
+L power:GND #PWR0116
+U 1 1 5C3D62AF
+P 5250 4200
+F 0 "#PWR0116" H 5250 3950 50  0001 C CNN
+F 1 "GND" V 5255 4072 50  0000 R CNN
+F 2 "" H 5250 4200 50  0001 C CNN
+F 3 "" H 5250 4200 50  0001 C CNN
+	1    5250 4200
+	0    -1   -1   0   
+$EndComp
+Wire Wire Line
+	5250 4200 4900 4200
+Wire Wire Line
+	4900 4000 5250 4000
+Text Label 5200 4300 2    50   ~ 0
+SWDIO
+Text Label 5200 4100 2    50   ~ 0
+SWCLK
+Wire Wire Line
+	5200 4100 4900 4100
+Wire Wire Line
+	4900 4300 5200 4300
+Wire Wire Line
+	2950 2100 2700 2100
+Wire Wire Line
+	2950 1700 2700 1700
+Wire Wire Line
+	2950 2500 2700 2500
+Wire Wire Line
+	2950 2900 2700 2900
+Text Label 2950 2100 2    50   ~ 0
+Q0
+Text Label 2950 2900 2    50   ~ 0
+Q1
+Text Label 2950 1700 2    50   ~ 0
+Q2
+Text Label 2950 2500 2    50   ~ 0
+Q3
+Text Notes 6550 3850 0    50   ~ 0
+Pull drivers
+Text Notes 8200 3850 0    50   ~ 0
+Push drivers
+Text Notes 4550 5050 0    50   ~ 0
+Comms load
+$EndSCHEMATC
diff --git a/center/center.kicad_pcb b/center/center.kicad_pcb
new file mode 100644
index 0000000..02c8ecb
--- /dev/null
+++ b/center/center.kicad_pcb
@@ -0,0 +1 @@
+(kicad_pcb (version 4) (host kicad "dummy file") )
diff --git a/center/center.net b/center/center.net
new file mode 100644
index 0000000..35c6148
--- /dev/null
+++ b/center/center.net
@@ -0,0 +1,683 @@
+(export (version D)
+  (design
+    (source /home/user/toys/led_tape_display/center/center.sch)
+    (date "Sun Nov 25 13:11:47 2018")
+    (tool "Eeschema (5.0.1)")
+    (sheet (number 1) (name /) (tstamps /)
+      (title_block
+        (title)
+        (company)
+        (rev)
+        (date)
+        (source center.sch)
+        (comment (number 1) (value ""))
+        (comment (number 2) (value ""))
+        (comment (number 3) (value ""))
+        (comment (number 4) (value "")))))
+  (components
+    (comp (ref U2)
+      (value STM32F030F4P6)
+      (footprint Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm)
+      (datasheet http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00088500.pdf)
+      (libsource (lib MCU_ST_STM32F0) (part STM32F030F4Px) (description "ARM Cortex-M0 MCU, 16KB flash, 4KB RAM, 48MHz, 2.4-3.6V, 15 GPIO, TSSOP-20"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1966AA))
+    (comp (ref U1)
+      (value AP1117-33)
+      (footprint Package_TO_SOT_SMD:SOT-223-3_TabPin2)
+      (datasheet http://www.diodes.com/datasheets/AP1117.pdf)
+      (libsource (lib Regulator_Linear) (part AP1117-33) (description "1A Low Dropout regulator, positive, 3.3V fixed output, SOT-223"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C19682A))
+    (comp (ref J1)
+      (value "top left")
+      (datasheet ~)
+      (libsource (lib Connector_Generic) (part Conn_01x02) (description "Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/)"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C196961))
+    (comp (ref J2)
+      (value "top right")
+      (datasheet ~)
+      (libsource (lib Connector_Generic) (part Conn_01x02) (description "Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/)"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C196B9D))
+    (comp (ref J3)
+      (value "bottom left")
+      (datasheet ~)
+      (libsource (lib Connector_Generic) (part Conn_01x02) (description "Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/)"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C196C4D))
+    (comp (ref J4)
+      (value "bottom right")
+      (datasheet ~)
+      (libsource (lib Connector_Generic) (part Conn_01x02) (description "Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/)"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C196D8E))
+    (comp (ref D1)
+      (value SS510)
+      (datasheet ~)
+      (libsource (lib Device) (part D_Schottky) (description "Schottky diode"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1985B1))
+    (comp (ref D3)
+      (value SS510)
+      (datasheet ~)
+      (libsource (lib Device) (part D_Schottky) (description "Schottky diode"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C19926C))
+    (comp (ref D2)
+      (value SS510)
+      (datasheet ~)
+      (libsource (lib Device) (part D_Schottky) (description "Schottky diode"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C199CCC))
+    (comp (ref D4)
+      (value SS510)
+      (datasheet ~)
+      (libsource (lib Device) (part D_Schottky) (description "Schottky diode"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C199DAE))
+    (comp (ref C1)
+      (value 1000uF)
+      (datasheet ~)
+      (libsource (lib Device) (part CP_Small) (description "Polarized capacitor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1A6A7D))
+    (comp (ref C4)
+      (value 470uF)
+      (datasheet ~)
+      (libsource (lib Device) (part CP_Small) (description "Polarized capacitor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1A7520))
+    (comp (ref C2)
+      (value 10u)
+      (datasheet ~)
+      (libsource (lib Device) (part C_Small) (description "Unpolarized capacitor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1AAFA9))
+    (comp (ref C3)
+      (value 100n)
+      (datasheet ~)
+      (libsource (lib Device) (part C_Small) (description "Unpolarized capacitor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1AF3BD))
+    (comp (ref C5)
+      (value 10u)
+      (datasheet ~)
+      (libsource (lib Device) (part C_Small) (description "Unpolarized capacitor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1AFB91))
+    (comp (ref C6)
+      (value 100n)
+      (datasheet ~)
+      (libsource (lib Device) (part C_Small) (description "Unpolarized capacitor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1B07A6))
+    (comp (ref R1)
+      (value 10k)
+      (datasheet ~)
+      (libsource (lib Device) (part R_Small) (description "Resistor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1B72F8))
+    (comp (ref R2)
+      (value 10k)
+      (datasheet ~)
+      (libsource (lib Device) (part R_Small) (description "Resistor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1BABDF))
+    (comp (ref R4)
+      (value 3k3)
+      (datasheet ~)
+      (libsource (lib Device) (part R_Small) (description "Resistor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1BB077))
+    (comp (ref R3)
+      (value 3k3)
+      (datasheet ~)
+      (libsource (lib Device) (part R_Small) (description "Resistor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1BC19C))
+    (comp (ref D6)
+      (value D_Schottky)
+      (datasheet ~)
+      (libsource (lib Device) (part D_Schottky) (description "Schottky diode"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1CFB2A))
+    (comp (ref D5)
+      (value D_Schottky)
+      (datasheet ~)
+      (libsource (lib Device) (part D_Schottky) (description "Schottky diode"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1D3E90))
+    (comp (ref Q3)
+      (value AO3400)
+      (footprint Package_DirectFET:DirectFET_S1)
+      (datasheet https://www.infineon.com/dgdl/irf6710s2pbf.pdf?fileId=5546d462533600a4015355ece3db1a78)
+      (libsource (lib Transistor_FET) (part IRF6710S2) (description "12A Id, 25V Vds, 5.9mOhm Rds, N-Channel MOSFET, DirectFET S1"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1F9130))
+    (comp (ref R10)
+      (value 620)
+      (datasheet ~)
+      (libsource (lib Device) (part R_Small) (description "Resistor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C1F9EE6))
+    (comp (ref R11)
+      (value 0)
+      (datasheet ~)
+      (libsource (lib Device) (part R_Small) (description "Resistor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C234E1F))
+    (comp (ref C12)
+      (value 0)
+      (datasheet ~)
+      (libsource (lib Device) (part C_Small) (description "Unpolarized capacitor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C23632F))
+    (comp (ref Q4)
+      (value AO3400)
+      (footprint Package_DirectFET:DirectFET_S1)
+      (datasheet https://www.infineon.com/dgdl/irf6710s2pbf.pdf?fileId=5546d462533600a4015355ece3db1a78)
+      (libsource (lib Transistor_FET) (part IRF6710S2) (description "12A Id, 25V Vds, 5.9mOhm Rds, N-Channel MOSFET, DirectFET S1"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C24FD36))
+    (comp (ref R12)
+      (value 0)
+      (datasheet ~)
+      (libsource (lib Device) (part R_Small) (description "Resistor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C24FD4B))
+    (comp (ref C13)
+      (value 0)
+      (datasheet ~)
+      (libsource (lib Device) (part C_Small) (description "Unpolarized capacitor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C24FD51))
+    (comp (ref Q1)
+      (value AO3400)
+      (footprint Package_DirectFET:DirectFET_S1)
+      (datasheet https://www.infineon.com/dgdl/irf6710s2pbf.pdf?fileId=5546d462533600a4015355ece3db1a78)
+      (libsource (lib Transistor_FET) (part IRF6710S2) (description "12A Id, 25V Vds, 5.9mOhm Rds, N-Channel MOSFET, DirectFET S1"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C265A5A))
+    (comp (ref R6)
+      (value 0)
+      (datasheet ~)
+      (libsource (lib Device) (part R_Small) (description "Resistor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C265A68))
+    (comp (ref C8)
+      (value 0)
+      (datasheet ~)
+      (libsource (lib Device) (part C_Small) (description "Unpolarized capacitor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C265A6E))
+    (comp (ref Q2)
+      (value IRLML6402)
+      (footprint Package_TO_SOT_SMD:SOT-23)
+      (datasheet https://www.infineon.com/dgdl/irlml6402pbf.pdf?fileId=5546d462533600a401535668d5c2263c)
+      (libsource (lib Transistor_FET) (part IRLML6402) (description "-3.7A Id, -20V Vds, P-channel MOSFET, 65mOhm Rds, SOT-23"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C26D08A))
+    (comp (ref R7)
+      (value 10k)
+      (datasheet ~)
+      (libsource (lib Device) (part R_Small) (description "Resistor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C270B70))
+    (comp (ref C7)
+      (value 0)
+      (datasheet ~)
+      (libsource (lib Device) (part C_Small) (description "Unpolarized capacitor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C27E2DD))
+    (comp (ref D7)
+      (value 8V2)
+      (datasheet ~)
+      (libsource (lib Device) (part D_Zener_Small_ALT) (description "Zener diode, small symbol, filled shape"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C280B09))
+    (comp (ref R9)
+      (value 0)
+      (datasheet ~)
+      (libsource (lib Device) (part R_Small) (description "Resistor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C2AA0AC))
+    (comp (ref Q5)
+      (value IRLML6402)
+      (footprint Package_TO_SOT_SMD:SOT-23)
+      (datasheet https://www.infineon.com/dgdl/irlml6402pbf.pdf?fileId=5546d462533600a401535668d5c2263c)
+      (libsource (lib Transistor_FET) (part IRLML6402) (description "-3.7A Id, -20V Vds, P-channel MOSFET, 65mOhm Rds, SOT-23"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C2DA7FA))
+    (comp (ref R13)
+      (value 10k)
+      (datasheet ~)
+      (libsource (lib Device) (part R_Small) (description "Resistor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C2DA800))
+    (comp (ref C11)
+      (value 0)
+      (datasheet ~)
+      (libsource (lib Device) (part C_Small) (description "Unpolarized capacitor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C2DA813))
+    (comp (ref D8)
+      (value 8V2)
+      (datasheet ~)
+      (libsource (lib Device) (part D_Zener_Small_ALT) (description "Zener diode, small symbol, filled shape"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C2DA819))
+    (comp (ref R14)
+      (value 0)
+      (datasheet ~)
+      (libsource (lib Device) (part R_Small) (description "Resistor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C2DA825))
+    (comp (ref Y1)
+      (value 8MHz)
+      (datasheet ~)
+      (libsource (lib Device) (part Crystal_GND24_Small) (description "Four pin crystal, GND on pins 2 and 4, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C30EB37))
+    (comp (ref C10)
+      (value 12p)
+      (datasheet ~)
+      (libsource (lib Device) (part C_Small) (description "Unpolarized capacitor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C310CD7))
+    (comp (ref C9)
+      (value 12p)
+      (datasheet ~)
+      (libsource (lib Device) (part C_Small) (description "Unpolarized capacitor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C31388F))
+    (comp (ref R5)
+      (value 0)
+      (datasheet ~)
+      (libsource (lib Device) (part R_Small) (description "Resistor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C36FD60))
+    (comp (ref R8)
+      (value 0)
+      (datasheet ~)
+      (libsource (lib Device) (part R_Small) (description "Resistor, small symbol"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C382D39))
+    (comp (ref J5)
+      (value SWD)
+      (datasheet ~)
+      (libsource (lib Connector_Generic) (part Conn_01x04) (description "Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/)"))
+      (sheetpath (names /) (tstamps /))
+      (tstamp 5C3B6CB2)))
+  (libparts
+    (libpart (lib Connector_Generic) (part Conn_01x02)
+      (description "Generic connector, single row, 01x02, script generated (kicad-library-utils/schlib/autogen/connector/)")
+      (docs ~)
+      (footprints
+        (fp Connector*:*_1x??_*))
+      (fields
+        (field (name Reference) J)
+        (field (name Value) Conn_01x02))
+      (pins
+        (pin (num 1) (name Pin_1) (type passive))
+        (pin (num 2) (name Pin_2) (type passive))))
+    (libpart (lib Connector_Generic) (part Conn_01x04)
+      (description "Generic connector, single row, 01x04, script generated (kicad-library-utils/schlib/autogen/connector/)")
+      (docs ~)
+      (footprints
+        (fp Connector*:*_1x??_*))
+      (fields
+        (field (name Reference) J)
+        (field (name Value) Conn_01x04))
+      (pins
+        (pin (num 1) (name Pin_1) (type passive))
+        (pin (num 2) (name Pin_2) (type passive))
+        (pin (num 3) (name Pin_3) (type passive))
+        (pin (num 4) (name Pin_4) (type passive))))
+    (libpart (lib Device) (part CP_Small)
+      (description "Polarized capacitor, small symbol")
+      (docs ~)
+      (footprints
+        (fp CP_*))
+      (fields
+        (field (name Reference) C)
+        (field (name Value) CP_Small))
+      (pins
+        (pin (num 1) (name ~) (type passive))
+        (pin (num 2) (name ~) (type passive))))
+    (libpart (lib Device) (part C_Small)
+      (description "Unpolarized capacitor, small symbol")
+      (docs ~)
+      (footprints
+        (fp C_*))
+      (fields
+        (field (name Reference) C)
+        (field (name Value) C_Small))
+      (pins
+        (pin (num 1) (name ~) (type passive))
+        (pin (num 2) (name ~) (type passive))))
+    (libpart (lib Device) (part Crystal_GND24_Small)
+      (description "Four pin crystal, GND on pins 2 and 4, small symbol")
+      (docs ~)
+      (footprints
+        (fp Crystal*))
+      (fields
+        (field (name Reference) Y)
+        (field (name Value) Crystal_GND24_Small))
+      (pins
+        (pin (num 1) (name 1) (type passive))
+        (pin (num 2) (name 2) (type passive))
+        (pin (num 3) (name 3) (type passive))
+        (pin (num 4) (name 4) (type passive))))
+    (libpart (lib Device) (part D_Schottky)
+      (description "Schottky diode")
+      (docs ~)
+      (footprints
+        (fp TO-???*)
+        (fp *_Diode_*)
+        (fp *SingleDiode*)
+        (fp D_*))
+      (fields
+        (field (name Reference) D)
+        (field (name Value) D_Schottky))
+      (pins
+        (pin (num 1) (name K) (type passive))
+        (pin (num 2) (name A) (type passive))))
+    (libpart (lib Device) (part D_Zener_Small_ALT)
+      (description "Zener diode, small symbol, filled shape")
+      (docs ~)
+      (footprints
+        (fp TO-???*)
+        (fp *_Diode_*)
+        (fp *SingleDiode*)
+        (fp D_*))
+      (fields
+        (field (name Reference) D)
+        (field (name Value) D_Zener_Small_ALT))
+      (pins
+        (pin (num 1) (name K) (type passive))
+        (pin (num 2) (name A) (type passive))))
+    (libpart (lib Device) (part R_Small)
+      (description "Resistor, small symbol")
+      (docs ~)
+      (footprints
+        (fp R_*))
+      (fields
+        (field (name Reference) R)
+        (field (name Value) R_Small))
+      (pins
+        (pin (num 1) (name ~) (type passive))
+        (pin (num 2) (name ~) (type passive))))
+    (libpart (lib MCU_ST_STM32F0) (part STM32F030F4Px)
+      (description "ARM Cortex-M0 MCU, 16KB flash, 4KB RAM, 48MHz, 2.4-3.6V, 15 GPIO, TSSOP-20")
+      (docs http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00088500.pdf)
+      (footprints
+        (fp TSSOP*4.4x6.5mm*P0.65mm*))
+      (fields
+        (field (name Reference) U)
+        (field (name Value) STM32F030F4Px)
+        (field (name Footprint) Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm))
+      (pins
+        (pin (num 1) (name BOOT0) (type input))
+        (pin (num 2) (name PF0) (type input))
+        (pin (num 3) (name PF1) (type input))
+        (pin (num 4) (name NRST) (type input))
+        (pin (num 5) (name VDDA) (type power_in))
+        (pin (num 6) (name PA0) (type BiDi))
+        (pin (num 7) (name PA1) (type BiDi))
+        (pin (num 8) (name PA2) (type BiDi))
+        (pin (num 9) (name PA3) (type BiDi))
+        (pin (num 10) (name PA4) (type BiDi))
+        (pin (num 11) (name PA5) (type BiDi))
+        (pin (num 12) (name PA6) (type BiDi))
+        (pin (num 13) (name PA7) (type BiDi))
+        (pin (num 14) (name PB1) (type BiDi))
+        (pin (num 15) (name VSS) (type power_in))
+        (pin (num 16) (name VDD) (type power_in))
+        (pin (num 17) (name PA9) (type BiDi))
+        (pin (num 18) (name PA10) (type BiDi))
+        (pin (num 19) (name PA13) (type BiDi))
+        (pin (num 20) (name PA14) (type BiDi))))
+    (libpart (lib Regulator_Linear) (part AP1117-15)
+      (aliases
+        (alias AP1117-18)
+        (alias AP1117-25)
+        (alias AP1117-33)
+        (alias AP1117-50)
+        (alias LD1117S33TR_SOT223)
+        (alias LD1117S12TR_SOT223)
+        (alias LD1117S18TR_SOT223)
+        (alias LD1117S25TR_SOT223)
+        (alias LD1117S50TR_SOT223)
+        (alias NCP1117-12_SOT223)
+        (alias NCP1117-1.5_SOT223)
+        (alias NCP1117-1.8_SOT223)
+        (alias NCP1117-2.0_SOT223)
+        (alias NCP1117-2.5_SOT223)
+        (alias NCP1117-2.85_SOT223)
+        (alias NCP1117-3.3_SOT223)
+        (alias NCP1117-5.0_SOT223)
+        (alias AMS1117-1.5)
+        (alias AMS1117-1.8)
+        (alias AMS1117-2.5)
+        (alias AMS1117-2.85)
+        (alias AMS1117-3.3)
+        (alias AMS1117-5.0))
+      (description "1A Low Dropout regulator, positive, 1.5V fixed output, SOT-223")
+      (docs http://www.diodes.com/datasheets/AP1117.pdf)
+      (footprints
+        (fp SOT?223*TabPin2*))
+      (fields
+        (field (name Reference) U)
+        (field (name Value) AP1117-15)
+        (field (name Footprint) Package_TO_SOT_SMD:SOT-223-3_TabPin2))
+      (pins
+        (pin (num 1) (name GND) (type power_in))
+        (pin (num 2) (name VO) (type power_out))
+        (pin (num 3) (name VI) (type power_in))))
+    (libpart (lib Transistor_FET) (part IRF6710S2)
+      (aliases
+        (alias IRF6810S))
+      (description "12A Id, 25V Vds, 5.9mOhm Rds, N-Channel MOSFET, DirectFET S1")
+      (docs https://www.infineon.com/dgdl/irf6710s2pbf.pdf?fileId=5546d462533600a4015355ece3db1a78)
+      (footprints
+        (fp DirectFET*S1*))
+      (fields
+        (field (name Reference) Q)
+        (field (name Value) IRF6710S2)
+        (field (name Footprint) Package_DirectFET:DirectFET_S1))
+      (pins
+        (pin (num 1) (name D) (type passive))
+        (pin (num 2) (name G) (type input))
+        (pin (num 3) (name S) (type passive))))
+    (libpart (lib Transistor_FET) (part TP0610T)
+      (aliases
+        (alias VP0610T)
+        (alias BSS84)
+        (alias NTR2101P)
+        (alias BSS83P)
+        (alias Si2319CDS)
+        (alias IRLML6402))
+      (description "-0.18A Id, -60V Vds, P-Channel MOSFET, SOT-23-3")
+      (docs http://www.vishay.com/docs/70209/70209.pdf)
+      (footprints
+        (fp SOT?23*))
+      (fields
+        (field (name Reference) Q)
+        (field (name Value) TP0610T)
+        (field (name Footprint) Package_TO_SOT_SMD:SOT-23))
+      (pins
+        (pin (num 1) (name G) (type input))
+        (pin (num 2) (name S) (type passive))
+        (pin (num 3) (name D) (type passive)))))
+  (libraries
+    (library (logical Connector_Generic)
+      (uri /home/user/ref/kicad-symbols/Connector_Generic.lib))
+    (library (logical Device)
+      (uri /home/user/ref/kicad-symbols/Device.lib))
+    (library (logical MCU_ST_STM32F0)
+      (uri /home/user/ref/kicad-symbols/MCU_ST_STM32F0.lib))
+    (library (logical Regulator_Linear)
+      (uri /home/user/ref/kicad-symbols/Regulator_Linear.lib))
+    (library (logical Transistor_FET)
+      (uri /home/user/ref/kicad-symbols/Transistor_FET.lib)))
+  (nets
+    (net (code 1) (name +12V)
+      (node (ref R13) (pin 2))
+      (node (ref R10) (pin 1))
+      (node (ref Q5) (pin 2))
+      (node (ref D1) (pin 1))
+      (node (ref D2) (pin 1))
+      (node (ref U1) (pin 3))
+      (node (ref C2) (pin 1))
+      (node (ref C3) (pin 1))
+      (node (ref C1) (pin 1))
+      (node (ref C11) (pin 1))
+      (node (ref C7) (pin 1))
+      (node (ref R7) (pin 2))
+      (node (ref Q2) (pin 2)))
+    (net (code 2) (name "Net-(D7-Pad1)")
+      (node (ref R9) (pin 2))
+      (node (ref D7) (pin 1)))
+    (net (code 3) (name /Q0)
+      (node (ref J2) (pin 2))
+      (node (ref Q1) (pin 1)))
+    (net (code 4) (name /CH0)
+      (node (ref U2) (pin 9))
+      (node (ref R6) (pin 2)))
+    (net (code 5) (name "Net-(C8-Pad1)")
+      (node (ref Q1) (pin 2))
+      (node (ref R6) (pin 1))
+      (node (ref C8) (pin 1)))
+    (net (code 6) (name /CH2)
+      (node (ref U2) (pin 12))
+      (node (ref D7) (pin 2)))
+    (net (code 7) (name "Net-(C7-Pad2)")
+      (node (ref R7) (pin 1))
+      (node (ref C7) (pin 2))
+      (node (ref Q2) (pin 1))
+      (node (ref R9) (pin 1)))
+    (net (code 8) (name /Q2)
+      (node (ref Q2) (pin 3))
+      (node (ref J1) (pin 2)))
+    (net (code 9) (name GND)
+      (node (ref C12) (pin 2))
+      (node (ref C13) (pin 2))
+      (node (ref C9) (pin 2))
+      (node (ref D3) (pin 2))
+      (node (ref D4) (pin 2))
+      (node (ref C6) (pin 2))
+      (node (ref C3) (pin 2))
+      (node (ref R4) (pin 2))
+      (node (ref C5) (pin 2))
+      (node (ref C4) (pin 2))
+      (node (ref Q3) (pin 3))
+      (node (ref Y1) (pin 2))
+      (node (ref Y1) (pin 4))
+      (node (ref C10) (pin 2))
+      (node (ref C1) (pin 2))
+      (node (ref Q1) (pin 3))
+      (node (ref R8) (pin 2))
+      (node (ref D6) (pin 2))
+      (node (ref C2) (pin 2))
+      (node (ref Q4) (pin 3))
+      (node (ref C8) (pin 2))
+      (node (ref U2) (pin 15))
+      (node (ref U1) (pin 1))
+      (node (ref R3) (pin 2))
+      (node (ref J5) (pin 3))
+      (node (ref D5) (pin 2)))
+    (net (code 10) (name /Q1)
+      (node (ref Q4) (pin 1))
+      (node (ref J4) (pin 2)))
+    (net (code 11) (name "Net-(C13-Pad1)")
+      (node (ref Q4) (pin 2))
+      (node (ref R12) (pin 1))
+      (node (ref C13) (pin 1)))
+    (net (code 12) (name /LOAD)
+      (node (ref U2) (pin 8))
+      (node (ref R11) (pin 2)))
+    (net (code 13) (name "Net-(C12-Pad1)")
+      (node (ref R11) (pin 1))
+      (node (ref C12) (pin 1))
+      (node (ref Q3) (pin 2)))
+    (net (code 14) (name /CH1)
+      (node (ref R12) (pin 2))
+      (node (ref U2) (pin 10)))
+    (net (code 15) (name "Net-(R5-Pad1)")
+      (node (ref R5) (pin 1))
+      (node (ref U2) (pin 4)))
+    (net (code 16) (name "Net-(R8-Pad1)")
+      (node (ref U2) (pin 1))
+      (node (ref R8) (pin 1)))
+    (net (code 17) (name +3V3)
+      (node (ref U2) (pin 16))
+      (node (ref U2) (pin 5))
+      (node (ref C4) (pin 1))
+      (node (ref R5) (pin 2))
+      (node (ref U1) (pin 2))
+      (node (ref J5) (pin 1))
+      (node (ref C5) (pin 1))
+      (node (ref C6) (pin 1)))
+    (net (code 18) (name "Net-(C10-Pad1)")
+      (node (ref U2) (pin 3))
+      (node (ref C10) (pin 1))
+      (node (ref Y1) (pin 3)))
+    (net (code 19) (name "Net-(C9-Pad1)")
+      (node (ref U2) (pin 2))
+      (node (ref Y1) (pin 1))
+      (node (ref C9) (pin 1)))
+    (net (code 20) (name /Q3)
+      (node (ref Q5) (pin 3))
+      (node (ref J3) (pin 2)))
+    (net (code 21) (name /SWDIO)
+      (node (ref J5) (pin 4))
+      (node (ref U2) (pin 19)))
+    (net (code 22) (name /SWCLK)
+      (node (ref J5) (pin 2))
+      (node (ref U2) (pin 20)))
+    (net (code 23) (name /CH3)
+      (node (ref D8) (pin 2))
+      (node (ref U2) (pin 13)))
+    (net (code 24) (name "Net-(D8-Pad1)")
+      (node (ref R14) (pin 2))
+      (node (ref D8) (pin 1)))
+    (net (code 25) (name "Net-(C11-Pad2)")
+      (node (ref R14) (pin 1))
+      (node (ref Q5) (pin 1))
+      (node (ref R13) (pin 1))
+      (node (ref C11) (pin 2)))
+    (net (code 26) (name "Net-(U2-Pad17)")
+      (node (ref U2) (pin 17)))
+    (net (code 27) (name "Net-(U2-Pad14)")
+      (node (ref U2) (pin 14)))
+    (net (code 28) (name "Net-(U2-Pad11)")
+      (node (ref U2) (pin 11)))
+    (net (code 29) (name "Net-(U2-Pad18)")
+      (node (ref U2) (pin 18)))
+    (net (code 30) (name /Vmeas_B)
+      (node (ref R4) (pin 1))
+      (node (ref U2) (pin 7))
+      (node (ref D6) (pin 1))
+      (node (ref R2) (pin 2)))
+    (net (code 31) (name /Vmeas_A)
+      (node (ref R3) (pin 1))
+      (node (ref R1) (pin 2))
+      (node (ref U2) (pin 6))
+      (node (ref D5) (pin 1)))
+    (net (code 32) (name "Net-(D2-Pad2)")
+      (node (ref J4) (pin 1))
+      (node (ref D4) (pin 1))
+      (node (ref D2) (pin 2))
+      (node (ref J2) (pin 1))
+      (node (ref R2) (pin 1)))
+    (net (code 33) (name "Net-(Q3-Pad1)")
+      (node (ref R10) (pin 2))
+      (node (ref Q3) (pin 1)))
+    (net (code 34) (name "Net-(D1-Pad2)")
+      (node (ref J1) (pin 1))
+      (node (ref D3) (pin 1))
+      (node (ref D1) (pin 2))
+      (node (ref J3) (pin 1))
+      (node (ref R1) (pin 1)))))
\ No newline at end of file
diff --git a/center/center.pro b/center/center.pro
new file mode 100644
index 0000000..152769c
--- /dev/null
+++ b/center/center.pro
@@ -0,0 +1,33 @@
+update=22/05/2015 07:44:53
+version=1
+last_client=kicad
+[general]
+version=1
+RootSch=
+BoardNm=
+[pcbnew]
+version=1
+LastNetListRead=
+UseCmpFile=1
+PadDrill=0.600000000000
+PadDrillOvalY=0.600000000000
+PadSizeH=1.500000000000
+PadSizeV=1.500000000000
+PcbTextSizeV=1.500000000000
+PcbTextSizeH=1.500000000000
+PcbTextThickness=0.300000000000
+ModuleTextSizeV=1.000000000000
+ModuleTextSizeH=1.000000000000
+ModuleTextSizeThickness=0.150000000000
+SolderMaskClearance=0.000000000000
+SolderMaskMinWidth=0.000000000000
+DrawSegmentWidth=0.200000000000
+BoardOutlineThickness=0.100000000000
+ModuleOutlineThickness=0.150000000000
+[cvpcb]
+version=1
+NetIExt=net
+[eeschema]
+version=1
+LibDir=
+[eeschema/libraries]
diff --git a/center/center.sch b/center/center.sch
new file mode 100644
index 0000000..843e9ca
--- /dev/null
+++ b/center/center.sch
@@ -0,0 +1,1207 @@
+EESchema Schematic File Version 4
+EELAYER 26 0
+EELAYER END
+$Descr A4 11693 8268
+encoding utf-8
+Sheet 1 1
+Title ""
+Date ""
+Rev ""
+Comp ""
+Comment1 ""
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+Comment4 ""
+$EndDescr
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+F 3 "http://www.st.com/st-web-ui/static/active/en/resource/technical/document/datasheet/DM00088500.pdf" H 3300 4850 50  0001 C CNN
+	1    3300 4850
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+$EndComp
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+	1    7050 1650
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+$EndComp
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+F 3 "~" H 2500 1800 50  0001 C CNN
+	1    2500 1800
+	-1   0    0    1   
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+$EndComp
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+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	8050 1650 8050 2100
+Connection ~ 8050 1650
+Wire Wire Line
+	8050 1650 7600 1650
+Wire Wire Line
+	8400 1650 8400 2100
+Wire Wire Line
+	8400 1650 8050 1650
+Wire Wire Line
+	8400 2300 8400 3350
+Wire Wire Line
+	8400 3350 8050 3350
+Wire Wire Line
+	8050 3350 8050 2300
+Wire Wire Line
+	8050 3350 7600 3350
+Connection ~ 8050 3350
+Connection ~ 7600 3350
+Wire Wire Line
+	6500 3350 6500 2300
+Connection ~ 6500 3350
+Wire Wire Line
+	6500 3350 6150 3350
+Wire Wire Line
+	6500 2100 6500 1650
+Connection ~ 6500 1650
+Wire Wire Line
+	6500 1650 6150 1650
+Wire Wire Line
+	6150 1650 6150 2100
+Connection ~ 6150 1650
+Wire Wire Line
+	6150 1650 5700 1650
+Wire Wire Line
+	6150 2300 6150 3350
+Connection ~ 6150 3350
+Wire Wire Line
+	6150 3350 5700 3350
+$Comp
+L Device:R_Small R1
+U 1 1 5C1B72F8
+P 3950 2500
+F 0 "R1" H 4009 2546 50  0000 L CNN
+F 1 "10k" H 4009 2455 50  0000 L CNN
+F 2 "" H 3950 2500 50  0001 C CNN
+F 3 "~" H 3950 2500 50  0001 C CNN
+	1    3950 2500
+	1    0    0    -1  
+$EndComp
+$Comp
+L Device:R_Small R2
+U 1 1 5C1BABDF
+P 4250 2500
+F 0 "R2" H 4309 2546 50  0000 L CNN
+F 1 "10k" H 4309 2455 50  0000 L CNN
+F 2 "" H 4250 2500 50  0001 C CNN
+F 3 "~" H 4250 2500 50  0001 C CNN
+	1    4250 2500
+	1    0    0    -1  
+$EndComp
+$Comp
+L Device:R_Small R4
+U 1 1 5C1BB077
+P 4250 3100
+F 0 "R4" H 4309 3146 50  0000 L CNN
+F 1 "3k3" H 4309 3055 50  0000 L CNN
+F 2 "" H 4250 3100 50  0001 C CNN
+F 3 "~" H 4250 3100 50  0001 C CNN
+	1    4250 3100
+	1    0    0    -1  
+$EndComp
+$Comp
+L Device:R_Small R3
+U 1 1 5C1BC19C
+P 3950 3100
+F 0 "R3" H 4009 3146 50  0000 L CNN
+F 1 "3k3" H 4009 3055 50  0000 L CNN
+F 2 "" H 3950 3100 50  0001 C CNN
+F 3 "~" H 3950 3100 50  0001 C CNN
+	1    3950 3100
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3950 3000 3950 2850
+Wire Wire Line
+	3950 2400 3950 2100
+Connection ~ 3950 2100
+Wire Wire Line
+	3950 2100 3150 2100
+Wire Wire Line
+	4250 2200 4250 2400
+Connection ~ 4250 2200
+Wire Wire Line
+	4250 2200 5250 2200
+Wire Wire Line
+	4250 2600 4250 2750
+Wire Wire Line
+	4250 3200 4250 3350
+Wire Wire Line
+	4250 3350 3950 3350
+Wire Wire Line
+	3950 3350 3950 3200
+Wire Wire Line
+	4250 3350 4550 3350
+Connection ~ 4250 3350
+Connection ~ 4850 3350
+$Comp
+L Device:D_Schottky D6
+U 1 1 5C1CFB2A
+P 4550 3100
+F 0 "D6" V 4550 3179 50  0000 L CNN
+F 1 "D_Schottky" V 4595 3179 50  0001 L CNN
+F 2 "" H 4550 3100 50  0001 C CNN
+F 3 "~" H 4550 3100 50  0001 C CNN
+	1    4550 3100
+	0    1    1    0   
+$EndComp
+$Comp
+L Device:D_Schottky D5
+U 1 1 5C1D3E90
+P 3650 3100
+F 0 "D5" V 3650 3179 50  0000 L CNN
+F 1 "D_Schottky" V 3695 3179 50  0001 L CNN
+F 2 "" H 3650 3100 50  0001 C CNN
+F 3 "~" H 3650 3100 50  0001 C CNN
+	1    3650 3100
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	3650 2950 3650 2850
+Wire Wire Line
+	3650 2850 3950 2850
+Connection ~ 3950 2850
+Wire Wire Line
+	3950 2850 3950 2750
+Wire Wire Line
+	4250 2850 4550 2850
+Wire Wire Line
+	4550 2850 4550 2950
+Connection ~ 4250 2850
+Wire Wire Line
+	4250 2850 4250 3000
+Wire Wire Line
+	4550 3250 4550 3350
+Wire Wire Line
+	4550 3350 4850 3350
+Connection ~ 4550 3350
+Wire Wire Line
+	3950 3350 3650 3350
+Wire Wire Line
+	3650 3350 3650 3250
+Connection ~ 3950 3350
+Wire Wire Line
+	3550 2750 3950 2750
+Connection ~ 3950 2750
+Wire Wire Line
+	3950 2750 3950 2600
+Wire Wire Line
+	4650 2750 4250 2750
+Connection ~ 4250 2750
+Wire Wire Line
+	4250 2750 4250 2850
+Text Label 3550 2750 0    50   ~ 0
+Vmeas_A
+Text Label 4650 2750 2    50   ~ 0
+Vmeas_B
+Text Label 4200 4450 2    50   ~ 0
+Vmeas_B
+Text Label 4200 4350 2    50   ~ 0
+Vmeas_A
+Wire Wire Line
+	4200 4350 3800 4350
+Wire Wire Line
+	3800 4450 4200 4450
+$Comp
+L Transistor_FET:IRF6710S2 Q3
+U 1 1 5C1F9130
+P 5250 5450
+F 0 "Q3" H 5455 5496 50  0000 L CNN
+F 1 "AO3400" H 5455 5405 50  0000 L CNN
+F 2 "Package_DirectFET:DirectFET_S1" H 5250 5450 50  0001 C CIN
+F 3 "https://www.infineon.com/dgdl/irf6710s2pbf.pdf?fileId=5546d462533600a4015355ece3db1a78" H 5250 5450 50  0001 L CNN
+	1    5250 5450
+	1    0    0    -1  
+$EndComp
+$Comp
+L Device:R_Small R10
+U 1 1 5C1F9EE6
+P 5350 5050
+F 0 "R10" H 5409 5096 50  0000 L CNN
+F 1 "620" H 5409 5005 50  0000 L CNN
+F 2 "" H 5350 5050 50  0001 C CNN
+F 3 "~" H 5350 5050 50  0001 C CNN
+	1    5350 5050
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5250 3350 5700 3350
+Connection ~ 5250 3350
+Connection ~ 5700 3350
+$Comp
+L power:+3.3V #PWR0101
+U 1 1 5C2174D4
+P 8750 1650
+F 0 "#PWR0101" H 8750 1500 50  0001 C CNN
+F 1 "+3.3V" V 8765 1778 50  0000 L CNN
+F 2 "" H 8750 1650 50  0001 C CNN
+F 3 "" H 8750 1650 50  0001 C CNN
+	1    8750 1650
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	8750 1650 8400 1650
+Connection ~ 8400 1650
+$Comp
+L power:GND #PWR0102
+U 1 1 5C21CDD5
+P 8750 3350
+F 0 "#PWR0102" H 8750 3100 50  0001 C CNN
+F 1 "GND" V 8755 3222 50  0000 R CNN
+F 2 "" H 8750 3350 50  0001 C CNN
+F 3 "" H 8750 3350 50  0001 C CNN
+	1    8750 3350
+	0    -1   -1   0   
+$EndComp
+Wire Wire Line
+	8750 3350 8400 3350
+Connection ~ 8400 3350
+$Comp
+L power:+12V #PWR0103
+U 1 1 5C2201CD
+P 6650 1200
+F 0 "#PWR0103" H 6650 1050 50  0001 C CNN
+F 1 "+12V" V 6665 1328 50  0000 L CNN
+F 2 "" H 6650 1200 50  0001 C CNN
+F 3 "" H 6650 1200 50  0001 C CNN
+	1    6650 1200
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	6650 1200 6500 1200
+Wire Wire Line
+	6500 1200 6500 1650
+$Comp
+L power:+3.3V #PWR0104
+U 1 1 5C223C57
+P 3400 3950
+F 0 "#PWR0104" H 3400 3800 50  0001 C CNN
+F 1 "+3.3V" H 3415 4123 50  0000 C CNN
+F 2 "" H 3400 3950 50  0001 C CNN
+F 3 "" H 3400 3950 50  0001 C CNN
+	1    3400 3950
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	3400 3950 3400 4050
+Connection ~ 3400 4050
+$Comp
+L power:GND #PWR0105
+U 1 1 5C22656D
+P 3300 5750
+F 0 "#PWR0105" H 3300 5500 50  0001 C CNN
+F 1 "GND" H 3305 5577 50  0000 C CNN
+F 2 "" H 3300 5750 50  0001 C CNN
+F 3 "" H 3300 5750 50  0001 C CNN
+	1    3300 5750
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:GND #PWR0106
+U 1 1 5C2270D7
+P 5350 5900
+F 0 "#PWR0106" H 5350 5650 50  0001 C CNN
+F 1 "GND" H 5355 5727 50  0000 C CNN
+F 2 "" H 5350 5900 50  0001 C CNN
+F 3 "" H 5350 5900 50  0001 C CNN
+	1    5350 5900
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:+12V #PWR0107
+U 1 1 5C227D6B
+P 5350 4850
+F 0 "#PWR0107" H 5350 4700 50  0001 C CNN
+F 1 "+12V" H 5365 5023 50  0000 C CNN
+F 2 "" H 5350 4850 50  0001 C CNN
+F 3 "" H 5350 4850 50  0001 C CNN
+	1    5350 4850
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5350 5650 5350 5850
+Wire Wire Line
+	5350 5150 5350 5250
+Wire Wire Line
+	5350 4850 5350 4950
+$Comp
+L Device:R_Small R11
+U 1 1 5C234E1F
+P 4750 5450
+F 0 "R11" V 4554 5450 50  0000 C CNN
+F 1 "0" V 4645 5450 50  0000 C CNN
+F 2 "" H 4750 5450 50  0001 C CNN
+F 3 "~" H 4750 5450 50  0001 C CNN
+	1    4750 5450
+	0    1    1    0   
+$EndComp
+$Comp
+L Device:C_Small C12
+U 1 1 5C23632F
+P 4950 5650
+F 0 "C12" H 5042 5696 50  0000 L CNN
+F 1 "0" H 5042 5605 50  0000 L CNN
+F 2 "" H 4950 5650 50  0001 C CNN
+F 3 "~" H 4950 5650 50  0001 C CNN
+	1    4950 5650
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	5350 5850 4950 5850
+Wire Wire Line
+	4950 5850 4950 5750
+Connection ~ 5350 5850
+Wire Wire Line
+	5350 5850 5350 5900
+Wire Wire Line
+	4950 5550 4950 5450
+Wire Wire Line
+	4950 5450 4850 5450
+Wire Wire Line
+	4950 5450 5050 5450
+Connection ~ 4950 5450
+Wire Wire Line
+	4400 5450 4650 5450
+Text Label 4400 5450 0    50   ~ 0
+LOAD
+$Comp
+L Transistor_FET:IRF6710S2 Q4
+U 1 1 5C24FD36
+P 6850 5450
+F 0 "Q4" H 7055 5496 50  0000 L CNN
+F 1 "AO3400" H 7055 5405 50  0000 L CNN
+F 2 "Package_DirectFET:DirectFET_S1" H 6850 5450 50  0001 C CIN
+F 3 "https://www.infineon.com/dgdl/irf6710s2pbf.pdf?fileId=5546d462533600a4015355ece3db1a78" H 6850 5450 50  0001 L CNN
+	1    6850 5450
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:GND #PWR0108
+U 1 1 5C24FD42
+P 6950 5900
+F 0 "#PWR0108" H 6950 5650 50  0001 C CNN
+F 1 "GND" H 6955 5727 50  0000 C CNN
+F 2 "" H 6950 5900 50  0001 C CNN
+F 3 "" H 6950 5900 50  0001 C CNN
+	1    6950 5900
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6950 5650 6950 5850
+Wire Wire Line
+	6950 5150 6950 5250
+$Comp
+L Device:R_Small R12
+U 1 1 5C24FD4B
+P 6350 5450
+F 0 "R12" V 6154 5450 50  0000 C CNN
+F 1 "0" V 6245 5450 50  0000 C CNN
+F 2 "" H 6350 5450 50  0001 C CNN
+F 3 "~" H 6350 5450 50  0001 C CNN
+	1    6350 5450
+	0    1    1    0   
+$EndComp
+$Comp
+L Device:C_Small C13
+U 1 1 5C24FD51
+P 6550 5650
+F 0 "C13" H 6642 5696 50  0000 L CNN
+F 1 "0" H 6642 5605 50  0000 L CNN
+F 2 "" H 6550 5650 50  0001 C CNN
+F 3 "~" H 6550 5650 50  0001 C CNN
+	1    6550 5650
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6950 5850 6550 5850
+Wire Wire Line
+	6550 5850 6550 5750
+Connection ~ 6950 5850
+Wire Wire Line
+	6950 5850 6950 5900
+Wire Wire Line
+	6550 5550 6550 5450
+Wire Wire Line
+	6550 5450 6450 5450
+Wire Wire Line
+	6550 5450 6650 5450
+Connection ~ 6550 5450
+Wire Wire Line
+	6050 5450 6250 5450
+Text Label 6050 5450 0    50   ~ 0
+CH1
+Text Label 7150 5150 2    50   ~ 0
+Q1
+Wire Wire Line
+	7150 5150 6950 5150
+$Comp
+L Transistor_FET:IRF6710S2 Q1
+U 1 1 5C265A5A
+P 6850 4350
+F 0 "Q1" H 7055 4396 50  0000 L CNN
+F 1 "AO3400" H 7055 4305 50  0000 L CNN
+F 2 "Package_DirectFET:DirectFET_S1" H 6850 4350 50  0001 C CIN
+F 3 "https://www.infineon.com/dgdl/irf6710s2pbf.pdf?fileId=5546d462533600a4015355ece3db1a78" H 6850 4350 50  0001 L CNN
+	1    6850 4350
+	1    0    0    -1  
+$EndComp
+$Comp
+L power:GND #PWR0109
+U 1 1 5C265A60
+P 6950 4800
+F 0 "#PWR0109" H 6950 4550 50  0001 C CNN
+F 1 "GND" H 6955 4627 50  0000 C CNN
+F 2 "" H 6950 4800 50  0001 C CNN
+F 3 "" H 6950 4800 50  0001 C CNN
+	1    6950 4800
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6950 4550 6950 4750
+Wire Wire Line
+	6950 4050 6950 4150
+$Comp
+L Device:R_Small R6
+U 1 1 5C265A68
+P 6350 4350
+F 0 "R6" V 6154 4350 50  0000 C CNN
+F 1 "0" V 6245 4350 50  0000 C CNN
+F 2 "" H 6350 4350 50  0001 C CNN
+F 3 "~" H 6350 4350 50  0001 C CNN
+	1    6350 4350
+	0    1    1    0   
+$EndComp
+$Comp
+L Device:C_Small C8
+U 1 1 5C265A6E
+P 6550 4550
+F 0 "C8" H 6642 4596 50  0000 L CNN
+F 1 "0" H 6642 4505 50  0000 L CNN
+F 2 "" H 6550 4550 50  0001 C CNN
+F 3 "~" H 6550 4550 50  0001 C CNN
+	1    6550 4550
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	6950 4750 6550 4750
+Wire Wire Line
+	6550 4750 6550 4650
+Connection ~ 6950 4750
+Wire Wire Line
+	6950 4750 6950 4800
+Wire Wire Line
+	6550 4450 6550 4350
+Wire Wire Line
+	6550 4350 6450 4350
+Wire Wire Line
+	6550 4350 6650 4350
+Connection ~ 6550 4350
+Wire Wire Line
+	6050 4350 6250 4350
+Text Label 6050 4350 0    50   ~ 0
+CH0
+Text Label 7150 4050 2    50   ~ 0
+Q0
+Wire Wire Line
+	7150 4050 6950 4050
+$Comp
+L Transistor_FET:IRLML6402 Q2
+U 1 1 5C26D08A
+P 8700 4600
+F 0 "Q2" H 8905 4554 50  0000 L CNN
+F 1 "IRLML6402" H 8905 4645 50  0000 L CNN
+F 2 "Package_TO_SOT_SMD:SOT-23" H 8900 4525 50  0001 L CIN
+F 3 "https://www.infineon.com/dgdl/irlml6402pbf.pdf?fileId=5546d462533600a401535668d5c2263c" H 8700 4600 50  0001 L CNN
+	1    8700 4600
+	1    0    0    1   
+$EndComp
+$Comp
+L Device:R_Small R7
+U 1 1 5C270B70
+P 8400 4400
+F 0 "R7" H 8341 4354 50  0000 R CNN
+F 1 "10k" H 8341 4445 50  0000 R CNN
+F 2 "" H 8400 4400 50  0001 C CNN
+F 3 "~" H 8400 4400 50  0001 C CNN
+	1    8400 4400
+	-1   0    0    1   
+$EndComp
+$Comp
+L power:+12V #PWR0110
+U 1 1 5C271E21
+P 8800 4100
+F 0 "#PWR0110" H 8800 3950 50  0001 C CNN
+F 1 "+12V" H 8815 4273 50  0000 C CNN
+F 2 "" H 8800 4100 50  0001 C CNN
+F 3 "" H 8800 4100 50  0001 C CNN
+	1    8800 4100
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	8800 4100 8800 4200
+Wire Wire Line
+	8800 4200 8400 4200
+Wire Wire Line
+	8400 4200 8400 4300
+Wire Wire Line
+	8800 4200 8800 4400
+Connection ~ 8800 4200
+Wire Wire Line
+	8500 4600 8400 4600
+Wire Wire Line
+	8400 4600 8400 4500
+$Comp
+L Device:C_Small C7
+U 1 1 5C27E2DD
+P 8200 4400
+F 0 "C7" H 8000 4450 50  0000 L CNN
+F 1 "0" H 8050 4350 50  0000 L CNN
+F 2 "" H 8200 4400 50  0001 C CNN
+F 3 "~" H 8200 4400 50  0001 C CNN
+	1    8200 4400
+	1    0    0    -1  
+$EndComp
+$Comp
+L Device:D_Zener_Small_ALT D7
+U 1 1 5C280B09
+P 7700 4600
+F 0 "D7" H 7700 4500 50  0000 L CNN
+F 1 "8V2" H 7650 4700 50  0000 L CNN
+F 2 "" V 7700 4600 50  0001 C CNN
+F 3 "~" V 7700 4600 50  0001 C CNN
+	1    7700 4600
+	-1   0    0    1   
+$EndComp
+Connection ~ 8400 4600
+Wire Wire Line
+	8200 4300 8200 4200
+Wire Wire Line
+	8200 4200 8400 4200
+Connection ~ 8400 4200
+Wire Wire Line
+	8200 4500 8200 4600
+Wire Wire Line
+	8200 4600 8400 4600
+$Comp
+L Device:R_Small R9
+U 1 1 5C2AA0AC
+P 8000 4600
+F 0 "R9" V 7900 4550 50  0000 C CNN
+F 1 "0" V 8100 4600 50  0000 C CNN
+F 2 "" H 8000 4600 50  0001 C CNN
+F 3 "~" H 8000 4600 50  0001 C CNN
+	1    8000 4600
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	8800 4800 8800 4900
+Wire Wire Line
+	8800 4900 9050 4900
+Text Label 9050 4900 2    50   ~ 0
+Q2
+Wire Wire Line
+	8200 4600 8100 4600
+Connection ~ 8200 4600
+Wire Wire Line
+	7900 4600 7800 4600
+Wire Wire Line
+	7400 4600 7600 4600
+Text Label 7400 4600 0    50   ~ 0
+CH2
+$Comp
+L Transistor_FET:IRLML6402 Q5
+U 1 1 5C2DA7FA
+P 8700 5700
+F 0 "Q5" H 8905 5654 50  0000 L CNN
+F 1 "IRLML6402" H 8905 5745 50  0000 L CNN
+F 2 "Package_TO_SOT_SMD:SOT-23" H 8900 5625 50  0001 L CIN
+F 3 "https://www.infineon.com/dgdl/irlml6402pbf.pdf?fileId=5546d462533600a401535668d5c2263c" H 8700 5700 50  0001 L CNN
+	1    8700 5700
+	1    0    0    1   
+$EndComp
+$Comp
+L Device:R_Small R13
+U 1 1 5C2DA800
+P 8400 5500
+F 0 "R13" H 8341 5454 50  0000 R CNN
+F 1 "10k" H 8341 5545 50  0000 R CNN
+F 2 "" H 8400 5500 50  0001 C CNN
+F 3 "~" H 8400 5500 50  0001 C CNN
+	1    8400 5500
+	-1   0    0    1   
+$EndComp
+$Comp
+L power:+12V #PWR0111
+U 1 1 5C2DA806
+P 8800 5200
+F 0 "#PWR0111" H 8800 5050 50  0001 C CNN
+F 1 "+12V" H 8815 5373 50  0000 C CNN
+F 2 "" H 8800 5200 50  0001 C CNN
+F 3 "" H 8800 5200 50  0001 C CNN
+	1    8800 5200
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
+	8800 5200 8800 5300
+Wire Wire Line
+	8800 5300 8400 5300
+Wire Wire Line
+	8400 5300 8400 5400
+Wire Wire Line
+	8800 5300 8800 5500
+Connection ~ 8800 5300
+Wire Wire Line
+	8500 5700 8400 5700
+Wire Wire Line
+	8400 5700 8400 5600
+$Comp
+L Device:C_Small C11
+U 1 1 5C2DA813
+P 8200 5500
+F 0 "C11" H 8000 5550 50  0000 L CNN
+F 1 "0" H 8050 5450 50  0000 L CNN
+F 2 "" H 8200 5500 50  0001 C CNN
+F 3 "~" H 8200 5500 50  0001 C CNN
+	1    8200 5500
+	1    0    0    -1  
+$EndComp
+$Comp
+L Device:D_Zener_Small_ALT D8
+U 1 1 5C2DA819
+P 7700 5700
+F 0 "D8" H 7700 5600 50  0000 L CNN
+F 1 "8V2" H 7650 5800 50  0000 L CNN
+F 2 "" V 7700 5700 50  0001 C CNN
+F 3 "~" V 7700 5700 50  0001 C CNN
+	1    7700 5700
+	-1   0    0    1   
+$EndComp
+Connection ~ 8400 5700
+Wire Wire Line
+	8200 5400 8200 5300
+Wire Wire Line
+	8200 5300 8400 5300
+Connection ~ 8400 5300
+Wire Wire Line
+	8200 5600 8200 5700
+Wire Wire Line
+	8200 5700 8400 5700
+$Comp
+L Device:R_Small R14
+U 1 1 5C2DA825
+P 8000 5700
+F 0 "R14" V 7900 5650 50  0000 C CNN
+F 1 "0" V 8100 5700 50  0000 C CNN
+F 2 "" H 8000 5700 50  0001 C CNN
+F 3 "~" H 8000 5700 50  0001 C CNN
+	1    8000 5700
+	0    1    1    0   
+$EndComp
+Wire Wire Line
+	8800 5900 8800 6000
+Wire Wire Line
+	8800 6000 9050 6000
+Text Label 9050 6000 2    50   ~ 0
+Q3
+Wire Wire Line
+	8200 5700 8100 5700
+Connection ~ 8200 5700
+Wire Wire Line
+	7900 5700 7800 5700
+Wire Wire Line
+	7400 5700 7600 5700
+Text Label 7400 5700 0    50   ~ 0
+CH3
+Wire Wire Line
+	4200 4550 3800 4550
+Wire Wire Line
+	4200 4650 3800 4650
+Wire Wire Line
+	4200 4750 3800 4750
+Wire Wire Line
+	4200 4950 3800 4950
+Wire Wire Line
+	4200 5050 3800 5050
+Text Label 4200 4550 2    50   ~ 0
+LOAD
+Text Label 4200 4650 2    50   ~ 0
+CH0
+Text Label 4200 4750 2    50   ~ 0
+CH1
+Text Label 4200 4950 2    50   ~ 0
+CH2
+Text Label 4200 5050 2    50   ~ 0
+CH3
+$Comp
+L Device:Crystal_GND24_Small Y1
+U 1 1 5C30EB37
+P 2250 5200
+F 0 "Y1" V 2050 5050 50  0000 L CNN
+F 1 "8MHz" V 2050 5250 50  0000 L CNN
+F 2 "" H 2250 5200 50  0001 C CNN
+F 3 "~" H 2250 5200 50  0001 C CNN
+	1    2250 5200
+	0    1    1    0   
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+L Device:C_Small C10
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+F 0 "C10" H 2342 5546 50  0000 L CNN
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+F 2 "" H 2250 5500 50  0001 C CNN
+F 3 "~" H 2250 5500 50  0001 C CNN
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+	1    0    0    -1  
+$EndComp
+$Comp
+L Device:C_Small C9
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+F 0 "C9" H 1700 5600 50  0000 L CNN
+F 1 "12p" H 1700 5400 50  0000 L CNN
+F 2 "" H 1900 5500 50  0001 C CNN
+F 3 "~" H 1900 5500 50  0001 C CNN
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+	1    0    0    -1  
+$EndComp
+$Comp
+L power:GND #PWR0112
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+F 0 "#PWR0112" H 2250 5550 50  0001 C CNN
+F 1 "GND" H 2255 5627 50  0000 C CNN
+F 2 "" H 2250 5800 50  0001 C CNN
+F 3 "" H 2250 5800 50  0001 C CNN
+	1    2250 5800
+	1    0    0    -1  
+$EndComp
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 2250 5750
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
+	2375 5200 2500 5200
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
+	2050 5200 2125 5200
+Connection ~ 2050 5750
+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
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+Wire Wire Line
+	2250 5300 2800 5300
+Wire Wire Line
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+Wire Wire Line
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+Connection ~ 2250 5300
+Wire Wire Line
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+Wire Wire Line
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+$Comp
+L Device:R_Small R5
+U 1 1 5C36FD60
+P 2600 4350
+F 0 "R5" V 2500 4250 50  0000 C CNN
+F 1 "0" V 2500 4450 50  0000 C CNN
+F 2 "" H 2600 4350 50  0001 C CNN
+F 3 "~" H 2600 4350 50  0001 C CNN
+	1    2600 4350
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+$EndComp
+Wire Wire Line
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+$Comp
+L power:+3.3V #PWR0113
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+F 2 "" H 2400 4350 50  0001 C CNN
+F 3 "" H 2400 4350 50  0001 C CNN
+	1    2400 4350
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+$EndComp
+Wire Wire Line
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+$Comp
+L power:GND #PWR0114
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+F 2 "" H 2400 4550 50  0001 C CNN
+F 3 "" H 2400 4550 50  0001 C CNN
+	1    2400 4550
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+$EndComp
+$Comp
+L Device:R_Small R8
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+F 0 "R8" V 2500 4450 50  0000 C CNN
+F 1 "0" V 2500 4650 50  0000 C CNN
+F 2 "" H 2600 4550 50  0001 C CNN
+F 3 "~" H 2600 4550 50  0001 C CNN
+	1    2600 4550
+	0    1    1    0   
+$EndComp
+Wire Wire Line
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+Wire Wire Line
+	2700 4550 2800 4550
+Wire Wire Line
+	4200 5350 3800 5350
+Wire Wire Line
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+Text Label 4200 5350 2    50   ~ 0
+SWDIO
+Text Label 4200 5450 2    50   ~ 0
+SWCLK
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+L Connector_Generic:Conn_01x04 J5
+U 1 1 5C3B6CB2
+P 4700 4100
+F 0 "J5" H 4620 4417 50  0000 C CNN
+F 1 "SWD" H 4620 4326 50  0000 C CNN
+F 2 "" H 4700 4100 50  0001 C CNN
+F 3 "~" H 4700 4100 50  0001 C CNN
+	1    4700 4100
+	-1   0    0    -1  
+$EndComp
+$Comp
+L power:+3.3V #PWR0115
+U 1 1 5C3BBC57
+P 5250 4000
+F 0 "#PWR0115" H 5250 3850 50  0001 C CNN
+F 1 "+3.3V" V 5265 4128 50  0000 L CNN
+F 2 "" H 5250 4000 50  0001 C CNN
+F 3 "" H 5250 4000 50  0001 C CNN
+	1    5250 4000
+	0    1    1    0   
+$EndComp
+$Comp
+L power:GND #PWR0116
+U 1 1 5C3D62AF
+P 5250 4200
+F 0 "#PWR0116" H 5250 3950 50  0001 C CNN
+F 1 "GND" V 5255 4072 50  0000 R CNN
+F 2 "" H 5250 4200 50  0001 C CNN
+F 3 "" H 5250 4200 50  0001 C CNN
+	1    5250 4200
+	0    -1   -1   0   
+$EndComp
+Wire Wire Line
+	5250 4200 4900 4200
+Wire Wire Line
+	4900 4000 5250 4000
+Text Label 5200 4300 2    50   ~ 0
+SWDIO
+Text Label 5200 4100 2    50   ~ 0
+SWCLK
+Wire Wire Line
+	5200 4100 4900 4100
+Wire Wire Line
+	4900 4300 5200 4300
+Wire Wire Line
+	2950 2100 2700 2100
+Wire Wire Line
+	2950 1700 2700 1700
+Wire Wire Line
+	2950 2500 2700 2500
+Wire Wire Line
+	2950 2900 2700 2900
+Text Label 2950 2100 2    50   ~ 0
+Q0
+Text Label 2950 2900 2    50   ~ 0
+Q1
+Text Label 2950 1700 2    50   ~ 0
+Q2
+Text Label 2950 2500 2    50   ~ 0
+Q3
+Text Notes 6550 3850 0    50   ~ 0
+Pull drivers
+Text Notes 8200 3850 0    50   ~ 0
+Push drivers
+Text Notes 4550 5050 0    50   ~ 0
+Comms load
+Text Notes 4600 3000 0    50   ~ 0
+Opt
+Text Notes 3500 3000 0    50   ~ 0
+Opt
+Text Notes 6350 4600 0    50   ~ 0
+Opt
+Text Notes 6450 4250 0    50   ~ 0
+Opt
+Text Notes 6450 5350 0    50   ~ 0
+Opt
+Text Notes 6350 5700 0    50   ~ 0
+Opt
+Text Notes 8000 5400 0    50   ~ 0
+Opt
+Text Notes 8000 4300 0    50   ~ 0
+Opt
+Text Notes 7950 4800 0    50   ~ 0
+Opt
+Text Notes 7950 5900 0    50   ~ 0
+Opt
+Text Notes 2550 4200 0    50   ~ 0
+Opt
+Text Notes 2550 4700 0    50   ~ 0
+Opt
+$EndSCHEMATC