Mainly there are LCD and relays that control electroluminescent wires. It all runs fine for a few minutes. And then I suddenly get a giberish output to my LCD, sometimes LCD backlit turns off and finally everything freezes. I guess it’s a problem with an inductive load of relays, but have no idea how to fix it.
As soon as I disconnect my relays, everything runs fine like forever. No freezes, no troubles at all.
Some giberish output:
It seems like problem is a noise sent from DC-AC inverter that powers electroluminescent wires. When power source of inverter (2xAA) is disconnected, everything runs pretty fine (tested for nearly an hour). What is the idea of fixing that?
A simple workaround provided by user TomGeorge. The idea is to have seperate inverters for each EL wire and connect 110V directly to ELs. Then use relays to switch inverter’s DC input instead of switching AC output like I did before.