I am going to rework the system so it uses an Easy Pcb and a Pro Mini rather than the Leonardo board. I think I might be seeing a voltage drop in my point to point dupont wiring from the Arduino to the Radio. I'll update you all once I get a chance to make the change. Bill

@canossa Sorry for the late response. yeah, since is so compact and you can get it for relatively cheap I opted in for the NRF52. For home automation, I merged MySensors with Domoticz and it works for months now. https://forum.mysensors.org/topic/7836/what-did-you-build-today-pictures/738