Small reverse engineering effort on controlling the Cooler Master Small ARGB Controller using python.

Notes are in reverse-engineer-argb.txt

This only works on firmware version v004 as of yet.

I am not sure what changed in firmware v008 as the new masterplus software does not support addressable rgb control

For firmware version v12:

Setting the amount of leds

800d0201{checksum}{amount of leds} the checksum is calculated by doing ceil(48/{amount of leds}) eg: 8 leds: 48/8 = 6 So the command for 8 leds is: 800d02010608

Setting a mode

• first the pc sends: 0801010002
• The controller confirms with 0801010003
• The pc sends: 080b0201{mode} where mode:
• 0= motherboard
• 1= spectrum
• 2= reload
• 3= recoil
• 4= breathing
• 5= refill
• 6= demo
• 7= custom (individual control)
• 8= off
• 9= static
• The controller confirms with 080b0300{mode}

Setting individual leds

• First the mode is set to 7
• The pc sends: 0010020030{r1}{g1}{b1}....{r20}{g20}
• The controller confirms with 0801010003
• The pc sends: 01{b20}{r21}{g21}{b21}....{r41}{g41}
• The pc sends: 82{b41}{r42}{g42}{b42}....{r48}{g48}{b48}