@mfalkvidd Node id's work now. Thank you everyone for your help. Mike

Short answer: No. Slightly longer answer: If you are sleeping to conserve battery you would need to power down the radio, so even if MySensors supported interrupts there would never be an interrupt because the radio would be sleeping as well. The power requirements for the radio in receive mode are too high for battery use. Long answer: Read the following earlier threads on the same topic: https://forum.mysensors.org/topic/2852/arduino-sleep-wake-on-interrupt https://forum.mysensors.org/topic/676/interrupt-on-recieve-radio-data/ https://forum.mysensors.org/topic/1461/how-to-sleep-the-arduino-but-still-have-it-respond-to-the-vera https://forum.mysensors.org/topic/1250/wake-up-over-radio/ https://forum.mysensors.org/topic/3100/low-power-servo-actuator/

@lafleur Thank you, I will try it right in the gateway code. I'm using the NRF24L01+ radios and I have not seen any noticeable difference in the range. Mind you I never tried to see how far I can go when I was using a serial gateway, but for now all my sensors work as they did with the serial gateway.

@hek Thanks. I am sure you will come up with a better general solution :D

@hek Thank for the update, it looks very interesting. I have been working on a ESP/MQTT sketch using the ESPWIFI Gateway and the subpub library. I will try the sketch in the development branch. I'm sure you have workout everything I am having problems with :) Regards, Mike

In the arduino serial monitor put 255;255;3;0;4;X where x is a number 1-254