Yes the board been tested by me and a tester, I also set up a test zello repeater channel too! The way the board been tested is by using it with the software and radios 24/7 it's been running for months now!
Here is how I tested the board too:
https://youtu.be/FM_Pujj4kgk
If you want to join my interface board ZELLO test channel and hear the board in action, then watch this video:
https://youtu.be/F2wkcvp29Sw
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