beep control 5v issue
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cyptus commented
@alperenguman why is beep control, which is in non-beep state a 5V high, directly connected to GPIO?
Wouldn‘t this damage the GPIO on the pi?
alperenguman commented
@cyptus Thank you for raising the issue. This project was 2 years ago so I'd be lying if I said I remember the specs but always use a multimeter to verify the incoming voltage, and down regulate anything above 3.3V for the RPi GPIO. I wanna give myself the benefit of the doubt and say that I verified and hence bypassed the regulator but it is equally possible that I had a brain fart.