Topics created by Michael_K

I have been using this BLE method (python script) with Domoticz and a couple of raspberry pi zero W. https://www.domoticz.com/wiki/Presence_detection_(Bluetooth_4.0_Low_energy_Beacon) One pi is near my driveway, and one on the other side of the house. I have an old Tile tag in one car and a Nut in the other. Both work fine for detecting when my cars leave and return. It also detects my Fitbit, an old one of the original type. I have that with me most of the time, so it acts like a tag for my presence. I haven't done much with it so far except to turn on the porch light when the cars pull into the driveway at night.

Welcome to the club! Regarding radio's: The RFM69's with a C in the type have a smaller form factor (which is pin compatible with the predecessor RFM12B). The the 'W' and "HW' versions are larger in size and have more programmable pins (which MySensors does not use) but have exactly the same functionality within MyS. All the footprints on the boards available in OpenHardware.io are for the 'W' and 'HW' versions so I'd go with one of these. The 'W' uses way less power than the 'HW' which would be good the for the battery life of your nodes. Sensors powered by the grid can be 'HW', but usually, in the house a 'W' delivers enough TX power to get the message across. It might be a good idea to make your gateway with a 'HW'. Hope this gets you a bit further. Good luck and show us your results!

@Michael_K , If we go from the front to the back this is what is needed: 1 Node: For example a door bell. This node sends information to a gateway. 2 The gateway takes the message from the node and sends this to a controller. For instance Openhab or Domotics. This can be done in several ways. MqTT being one. 3 Controller: takes the information and displays it to you. So in my case, I hardcode Node ID and CHILD ID (the complete door bell is a NODE whereas CHILD IDs may be the button pressed and maybe temperature reading at the same time). This sends to Gate way that takes the information and creates a MqTT message. What this message is, please read the instructions on this site.