- Read it now from app.config JSON file. - Allow for inverted status leds (Sonoff et al) - Clean up unit tests.
The S20, TH, Basic and SV all share the same 1-channel pinout. The 4CH has a few more IO pins.
- YK3_WIFI_SV2 (1 and 2 gang) - YK3_WIFI_SV5 (3 gang)
