@andriej
Hi, I had problem using the main branch mysensors/Raspberry, that because of the bit-field struct (header_s) in Sensor.h They will get packed in different order on the arduino compared to the RPi (at least with my compiler, gcc). In order to fix this I created the 1.4dev branch. It uses full bytes instead of the bit-fields, but you need (of cause) to compile both the sensors (arduino) and the gateway (RPi) using the 1.4dev branch.
We need to fix this in the main branch later on (and use the same files as in mysensors/Arduino/libraries/MySensors)
It depends a lot on what you can do. As @OldSurferDude wrote, if you want a cheap solution, this is the way to go. Also when you need something that is not available on the market. Here below the list of my camper nodes.
IMO mySensors is the best possible alternative, if not the only one, to the systems that rely on standards, which require way too many resources for the job they are asked.
In my case, several nodes have edge capabilities, because they have to keep working even if the controller is not responsive.
I don't have a good answer for you @mimaret When I get to the point where I'm getting strange error messages, I bite the bullet and start from ground zero. Fortunately, with the RPi you just need a new SD card.
Start with a fresh copy of the Raspberry Pi OS. If you enable SSH (and WiFI) when you create the image, you can do everything headless (without keyboard-mouse-video) by running raspi-config via a remote terminal ( PuTTY ) If you enable VNC with raspi-config you can have access to the GUI.
Double check your radio wiring.
Don't have anything unnecessary plugged in.
Carefully follow the instructions
I've done this tedious process many times. My RPi's are 3B+ and Zero 2 W. Here's what I've encountered:
bad power supply
bad SD card
bad wiring
corrupt download
and, of course, more user errors than I care to think about!
I have not come across bad RPi ... no, not true! I had a Zero 2 W with a bad WiFi chip (common problem). Overcame that with a USB WiFi dongle.
Good luck! Let us know what you discover.
-OSD
