To send frequency of power line we do not have any field (as per my knowledge). I hope V_FREQUENCY will be a suitable field for sensor variable type. For sensor type we can use S_POWER
ESP32 Support to enable the powerful ESP32 + RFM95/Lora + LiPo battery boards
Home automation - TFT touch display
Visual feedback (leds) @ error
Additional sleep methods with array of pins as parameters ?
Domoticz,raspberry pi and arduino and drf1278dm
Set output pin High before message initialising
Would You Like Support For ESP8266 'Nodes'?
ESP8266 as MySensors nodes instead of Arduino + nRF24L01