I wanted to update my Raspberry Pi to the newest Buster + Node RED, but I have a problem to activate the "NibePi Master" (https://github.com/anerdins/node-red-contrib-nibepi/ ) in Node RED using a RS485 hat:
--> /dev/ttyAMA0 is not reachable
I activated the serial port and then I read I have to deactivate the bluetooth service (RPi3B)
echo "dtoverlay=disable-bt" | sudo tee -a /boot/config.txt sudo systemctl disable hciuart sudo reboot
or "...bt3". Not sure !
I just have to know how to activate the RS485 Hat on Buster so that NibePi can find it at all.
On desktop config there are many options "I2C", "GPIO Remote", ... don´t know whats right to activate.
Please help, even if it is only indirectly related to Node Red.