@bjornhallberg The sensors are working fine and have been installed in my home for the last couple of years. Some optimisation needs to be done to the code, that i have not done. This is more connected to understanding when the mysensors network is in "range" as i want to fallback on the manual knob if the mysensor network is inactive for some reason or if i sell the house and the controller goes with me.

Did you guys managed to have it working with latest mysensors version?

@skywatch thanks a lot for offering to help. I think I have made some headway. I used @NeverDie sketches. The one for nrf24 or RFM69 don’t really work well with waking up the nrf51 chip or maybe I made some mistake and were consuming way too much power. Anyhow , the test sketch is running and interrupts are working fine as well as the bme280 reports fine. Tomorrow I will move it a battery powered and observe. Cheers!