Support P9813 chainable LEDs.
ebaauw opened this issue · 3 comments
See Discord.
P9813 looks very similar to the Blinkt!, but uses a slightly different encoding of the LED target state. See https://github.com/topics/p9813.
Received the two Grove Chainable LED v2 devices I ordered. The RGB LEDs are based on the P9813, with four input connectors, Ground, VCC, Data In, Clock In; and four output connectors to chain the next LED. The card that came with the devices mentioned that they could be driven by either 3.3V or 5V, so I connected VCC to 3.3V, Clock In to GPIO 10, Data In to GPIO 11, and, of course, Ground to ground. Then I connected the second LED's inputs to the first LED's outputs, and configured a device in Homebridge RPi:
{
"device": "blinkt",
"name": "P9813",
"gpioClock": 10,
"gpioData": 11,
"nLeds": 2
},
Indeed, as reported on Discord, Homebridge RPi controls the colour, but neither brightness nor on/off control works. As I hoped, the each LED can be controlled independently.
Released v1.6.0.