if you put up some code I can have a look at it

@NotTooTechy from your text I read that the the equipment needs some special precautions related to timing. From my perspective you should not use the controller to handle that, but do it local in firmware (MyS node). Domoticz is perfectly capable of handling very specific algorithms in lua. Certainly more straightforward than programming it in Pascal. Though it can be more fun to build you own controller if you are into it:smile: Domoticz "calls home" to check for updates. No secrets to what it is doing, the whole source is on git.

Thanks, my mistake, did not have the things configured correctly. I now have three devices visible. Two are shown correctly, the first as Light (relays) and the other Temp/Humidity (DHT) but the Gateway is showing as "Temp" but I guess I can ignore that. I will start a new thread on what I am trying to do now that the three Arduinos are all visible in Domoticz.

Do you really spend that much time writing responses? if your neck is aching from looking at the box then your screen isn't setup properly.

In the MySensors protocol, messageType is also called command (for historical reasons I guess?). So c made sense, at least when the debug output was added to the code. There is a link available in the description in the debug faq to the code where a comment saying "The command field (message-type) defines the overall properties of a message" is available.

If you use at least a half decent search function and search the example tree for "eeprom" the example will show no matter the order of the keywords, so is a renaming really necessary?