Tally test server

For testing tally lights when you're not actually with an ATEM switcher, you can use the ATEM_tally_test_server.ino program on one of your ESPs to let other tally lughts connect to as if it's an actual switcher.

You can scroll through the tally states by pressing enter in the serial monitor. Make sure you're sending a CR (\r). It'll send the same tally state to all tally lights, no matter the tally number.

Settings will carry over from this and the main program for compatability, unless you choose to erase it all when uploading.