My 'Switch Project' app I've been working on programming for 7+ years now!

This is my very first Android App I've ever made! Made this using a free website called MIT AI2 (MIT App Inventor 2)...

My 'Toggle Switch App' is for Android devices only, mainly Joying brand Android headunits, but should work for most other Android headunits as well, and even some older phones and tablets I've tried it on...

Currently almost through with my first fully working, USB connected version, 8-channel relay setup, and will try to add support for radios that might support connecting to the Bluetooth relay boards in the future (not all radios support pairing to that kind of stuff anymore like they used to at the start of this project unfortunately)...

I have tested them with Bluetooth 8-channel relay boards I have from tablets that let me pair to them, and everything works absolutely perfectly over Bluetooth as well in that testing! But like I say, most Android headunits now days are picky and don't show up the 'paired-devices' list inside my app to allow you to connect to the relay boards from within my app... It worked fine on older like Android 6.0 & some Android 8 version Joying radios, but now they are all Android 10 & 12 version radios now days lol

This is a not-for-profit solution. I don't intend to sell or make anything, just offer a app that can control certain off-the-shelf Amazon usb relay boards is all... I'm not intending on making money from this project at all