Hey there!
I've been wanting to make an app that rings two or more bells over WiFi. I've figured that ESP8266 as the "bell modules" would be an easy way as they already have a WiFi module.
I'm not sure where to start though. Can the ESPs just connect to the WiFi and ring when they get their instruction to do so? Or do I need a separate "hub" that acts as a connector between the app and the ESPs?
I'm fairly new to this so I'll gladly accept any tips or suggestions on completely different methods of making this.
Thanks in advance!