? I have a major problem with the main board. I built it with the reverse power protection. When I first built it I had 3.3vand5v at the test points. Now when I added the teensy and audio hat and test it I get I2C devices not found.? Also I have 1.35 amps and 14 watts per? the power supply meters. No longer have 3.3 v and the LM117 is very very hot to the touch. I? blow one teensy replaced with new one and resoldered all pins still no luck. Can someone point me in the right direction? to look for? the problem?
?
?
Tom AB9EK