The oscilloscope reads no signal when it is 5V max, or 50Hz when it is 0V max.
I have tried the LM324AN op amp today, hooked it up to a waveform generator (square wave, 3.3Vpp, 50Hz, 10% duty cycle) and it worked. When I attempted to try it on the pi it did not work, I tried C and python, and the gpio pin kept going to 0V.
Any suggestions for code, op amp circuit, and any circuit?
I have tried the LM324AN op amp today, hooked it up to a waveform generator (square wave, 3.3Vpp, 50Hz, 10% duty cycle) and it worked. When I attempted to try it on the pi it did not work, I tried C and python, and the gpio pin kept going to 0V.
Any suggestions for code, op amp circuit, and any circuit?
Statistics: Posted by Quynhpham — Thu Jul 10, 2025 7:38 am