I would like to ask for an advice in choosing controller/platform for my project. Basically what I want to do is RPI local server with web server, where I can display data from arduino sensors and from web page (web server) I need to be able send values to arduino (like temperature... arduino will manage everything else). The connection should be serial (usb) as I don't want to use any shields.
Do you have some recommendation of controller/platform? Is there some simple tutorial for this case?
I tried to use Home Assistant, but in the end I couldn't pass data from web to arduino. Second one, which I tried was Blynk... but I couldn't even connect the arduino to the RPI...
I'm using Arduino MEGA and RP-3