I have this circuit to control my doorbell but the voltage on the pin 4 is only outputting 1.2V rather than 3.3V Then microcontroller is not detecting the button push because it thinks the circuit is already low. Is there a reason the pin is only outputting 1.2V. I think if it was 3.3V my program wo…

I have a circuit to control my doorbell but Voltage on pin is too low

PaulRB November 4, 2017, 6:27pm 2

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