Add some documentation

3 files changed, 29 insertions, 7 deletions

diff --git a/hw/chibi/chibi_2024/bom-chibi.ods b/hw/chibi/chibi_2024/bom-chibi.ods
index 5b05ffe..ce6eec8 100644
--- a/hw/chibi/chibi_2024/bom-chibi.ods
+++ b/hw/chibi/chibi_2024/bom-chibi.ods
diff --git a/hw/chibi/chibi_2024/chibi_2024.kicad_pcb b/hw/chibi/chibi_2024/chibi_2024.kicad_pcb
index d96f401..25b3796 100644
--- a/hw/chibi/chibi_2024/chibi_2024.kicad_pcb
+++ b/hw/chibi/chibi_2024/chibi_2024.kicad_pcb
@@ -14,16 +14,16 @@
 
   (page A4)
   (layers
-    (0 F.Cu signal)
+    (0 F.Cu signal hide)
     (31 B.Cu signal)
     (32 B.Adhes user hide)
     (33 F.Adhes user hide)
-    (34 B.Paste user hide)
-    (35 F.Paste user)
-    (36 B.SilkS user hide)
+    (34 B.Paste user)
+    (35 F.Paste user hide)
+    (36 B.SilkS user)
     (37 F.SilkS user hide)
-    (38 B.Mask user hide)
-    (39 F.Mask user)
+    (38 B.Mask user)
+    (39 F.Mask user hide)
     (40 Dwgs.User user hide)
     (41 Cmts.User user hide)
     (42 Eco1.User user hide)
@@ -71,7 +71,7 @@
     (pad_drill 0.9)
     (pad_to_mask_clearance 0.2)
     (aux_axis_origin 0 0)
-    (visible_elements FFFEFF7F)
+    (visible_elements FFFEBF7F)
     (pcbplotparams
       (layerselection 0x010fc_80000001)
       (usegerberextensions false)
diff --git a/hw/chibi/chibi_2024/rotator.py b/hw/chibi/chibi_2024/rotator.py
new file mode 100755
index 0000000..cf45253
--- /dev/null
+++ b/hw/chibi/chibi_2024/rotator.py
@@ -0,0 +1,22 @@
+#!/usr/bin/env python3
+
+import re
+
+with open('chibi_2024.kicad_pcb') as f:
+    lines = f.readlines()
+
+def mangled(lines):
+    for l in lines:
+        if 'fp_text' in l and not l.strip().endswith('hide'):
+            at_re = '\((at\s\S+\s\S+)(\s\S+)?\)'
+            match = re.search(at_re, l)
+            if not match:
+                raise Exception()
+            rot = int(match.group(2) or '0')
+            rot = (rot+180)%360
+            yield re.sub(at_re, r'(\1 {})'.format(rot), l)
+        else:
+            yield l
+
+with open('out.kicad_pcb', 'w') as f:
+    f.write(''.join(mangled(lines)))