spectrenoir06 / LEDsController

Lib to send LED data over UDP

Dependencies

• sudo apt install luajit luarocks

• sudo luarocks install luasocket

• sudo luarocks install lpack

• sudo luarocks install lua-brotli

• sudo luarocks install middleclass

UDP packet format

CMD	count	offset	nb_pixel	Data
u8	u8	u16	u16	?

• CMD :
  • 0x00 : Send RGB888 DATA
  • 0x01 : Send RGB888 DATA and update
  • 0x02 : Send RGB565 DATA
  • 0x03 : Send RGB565 DATA and update
  • 0x10 : Send Z888 DATA
  • 0x10 : Send Z888 DATA and update
• Count :
  • Increment by 1 every new UDP packet ( overflow at 256 )
• Offset:
  • When you need split the UDP show the offset data
• nb_pixel:
  • number of pixel in the UDP packet
• Data:
  • pixel Data

RGB888:

CMD	count	offset	nb_pixel	Red	Green	Blue	...
u8	u8	u16	u16	u8	u8	u8	...

example of 1024 Pixels send in 3 UDP packets

Z888:

CMD	count	offset	nb_pixel	Compress RGB888 Data
u8	u8	u16	u16	...

example of 1024 Pixels send in 1 UDP packets