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| author | jaseg <githubaccount@jaseg.net> | 2015-01-05 00:42:13 +0100 |
|---|---|---|
| committer | jaseg <githubaccount@jaseg.net> | 2015-01-05 00:42:13 +0100 |
| commit | f1c15cc23422f20dfa562f8a74c29cf343e61985 (patch) | |
| tree | 4c1acfa44c40b0a575371bf4c100b75643595cbc | |
| parent | b58a66643375a3b662b9d0a9f560fbaf5b2807f9 (diff) | |
| download | matelight-f1c15cc23422f20dfa562f8a74c29cf343e61985.tar.gz matelight-f1c15cc23422f20dfa562f8a74c29cf343e61985.tar.bz2 matelight-f1c15cc23422f20dfa562f8a74c29cf343e61985.zip | |
README.md: What CRC again?
| -rw-r--r-- | README.rst | 4 |
1 files changed, 2 insertions, 2 deletions
@@ -3,7 +3,7 @@ Mate Light .. image:: http://cbag3.c-base.org/media/cache/artefact_show/uploads/assets/52f6c9c16c72d.jpeg -Transform a bunch of empty mate crates to a huge display using a 14 year old laptop, a 13US$ microcontroller board and a couple of cheap chinese christmas lights. +Transform a bunch of empty mate crates to a huge display using a 15 year old laptop, a 13US$ microcontroller board and a couple of cheap chinese christmas lights. Hardware Setup -------------- @@ -26,7 +26,7 @@ The control software is a Python script accepting framebuffer data via UDP and t Architecture ~~~~~~~~~~~~ -The server listens on TCP and UDP ports 1337. Any text arriving through TCP is rendered as a marquee, interpreting ANSI escape sequences (colors, blink etc.). The UDP port accepts CRAP, our Custom advanced video stReAming Protocol. A CRAP packet contains three bytes of RGB data per pixel in 16 rows of 40 columns (i.e. ``[R0,0 G0,0 B0,0 R0,1 G0,1 B0,1 ... R0,39 G0,39 B0,39 R1,0 G1,0 B1,0 ... R15,39 G15,39 B15,39]``) and an optional trailing CRC32 checksum. +The server listens on TCP and UDP ports 1337. Any text arriving through TCP is rendered as a marquee, interpreting ANSI escape sequences (colors, blink etc.). The UDP port accepts CRAP, our Custom advanced video stReAming Protocol. A CRAP packet contains three bytes of RGB data per pixel in 16 rows of 40 columns (i.e. ``[R0,0 G0,0 B0,0 R0,1 G0,1 B0,1 ... R0,39 G0,39 B0,39 R1,0 G1,0 B1,0 ... R15,39 G15,39 B15,39]``). There is at least one further server implementation of CRAP in the form of an `HTML5 CRAP emulator`_. There is `a Python script that plays gifs over CRAP`_. |