Any plan to support XBee modules as radio transmission protocol?
Probably not over the air - between sensors.
But someone could possibly create a XBee gateway communicating using the MySensors protocol towards the controller.
NRF24L01 module help for IoT project!
Ethernet/WiFi-Client Gateway enhancement
Water leak sensor
Motion sensor increase Time high status via software
NRF24 Radio Recouperation feature
idea: depositTime (opposite of requestTime)
multiple sensors via nRF24L01 --> ESP8266 (gateway) --> MQTT --> GCP (google IoT)?