lightKnot

nodejs server daemon for the various ledwalls at the c3d2 hackerspace.

also prodvides a preview website, like this one : http://bender.hq.c3d2.de:2340 (ipv6 only)

Supported LedWalls

• original Pentawall (16x15x3x8)
• g3d2 (72x32x1x4)
• PentawallHD (23x23x3x8)
• CeilingLED (5x1x4x8)

Dependencies

• socket.io
• node-serialport

Configuration

• very simple, look into wall.js

Protocol

• basics : all numbers are encoded in 16bit hexadecimal ascii text, like this: 01020304050608090a0b0c0d0e0f10 (case insensitive)

• commands:

• 00 prints help screen
• 01 show server configuration
• 02 set pixel
• 03 set frame
• 04 change priority
• 05 start recording
• 06 stop recording
• 09 subscribe to message channel
• 0a sent message to channel