This is a firmware to control a led matrix using an esp8266 over MQTT with auto discovery for HomeAssistant.
The base topic and all other connection confiurations can be configured in the Config.h.
Just copy over the Config.example.h.
The available topics are:
<MQTT_TOPIC>/set/brightness 0 - 255
<MQTT_TOPIC>/set/fps -1 - 500 (-1 means no restriction -> as fast as the main loop runs)
<MQTT_TOPIC>/set/switch ON / OFF
<MQTT_TOPIC>/set/text/text any string
<MQTT_TOPIC>/set/text/scroll ON / OFF If the text should scroll. The text is just cut off, if it is too long.
<MQTT_TOPIC>/set/blink ON / OFF If the blink mode is enabled
The color can be changed using these topics:
<MQTT_TOPIC>/add/color
Add a color to the current color array
<MQTT_TOPIC>/set/color
Set and replace the current colors with a specific color (array)
The colors can have the following formats:
- Numeric
0 - 16777215(int representation of 0x000000 - 0xFFFFFF) - JSON array:
[255, 255, 255] - HomeAssistant default format:
rrr,ggg,bbbe.g.0,100,255
The <MQTT_TOPIC>/set/color also supports json arrays:
- Numeric
[0, 5555454, 16777215] - JSON array:
[[255, 255, 255], [255, 255, 255]] - HomeAssistant default format:
["rrr,ggg,bbb", "rrr,ggg,bbb"]e.g.["0,100,255", "255,0,0"]