I've setup node-red on a raspberry pi3b+ and I'm learning how to use it.
I have a sonoff basic switch, and installed "node-red-contrib-sonoff-lan-mode : sonoff-lan-listener"
It shows "disconnected" in the editor and I'm trying to figure out why.
The sonoff app works fine with the device.
The command line on the pi shows the ip address and that it's connected via the wireless adapter.
I configured node-red using that IP and the default port.
The pi iptables firewall is set for default allow.
Is there a way to get an exception trace or something similar from the flow editor window?
The only other thing I can think of would be to install postman and try to talk to it manually
HA post caught my eye as it talks about a similar issue with offline mode.
I have all my smart devices running Tasmota, it does everything I need and is constantly updated with new features. I can't speak for the other options as after trying a few options several years ago I decided to stick with Tasmota
The guide I posted shows the process very well (just be careful not to plug it in when flashing !!)