@lrtsenar The MySensors Libraries were designed around the nrf24l01 transceivers which have much more built in capability than a simple 433Mhz Tx/Rx pair. You can make a node which contains a nrf and 433 Rx/Tx and it can transfer messages between the MySensors architecture and common 433Mhz devices. If you are only interested in 433Mhz devices with Domoticz, see the RFLink project for more info. I believe it requires a mega to fit their libraries.

@epierre said: Both need protection (internal or external) from excessive discharge (or excessive charge, and short circuits etc) That is where our new library to check battery level goes in, we could dream to have an internal mysensor security check of a LiPo battery ! they do so in 'copters I may pass on that. I'm not used to software glitches having quite so much potential impact, and I don't need to save every gram. But to each their own!