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Complete Circuit - Programatic Button

Similar questions have been asked many times. You are asking if the Pi GPIO can emulate a contact closure. This is NOT possible. GPIO can supply low voltage 0/3.3V at low current (<16mA). What you ...
Milliways's user avatar
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Trying to understand the under voltage issue

Those voltages have NOTHING to do with the power supply and are internal supplies which are designed to change depending on CPU load. The only way is to measure the voltage on pin 2 or 4. If you do ...
Milliways's user avatar
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How to Turn Off Red Idle LED Light on Raspberry Pi 4 When Device is Turned Off

As @CoderMike has pointed out in his comment, once your RPi goes into shutdown, it is no longer under software control. And since your method for extinguishing the light is in software, it simply can'...
Seamus's user avatar
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How to Turn Off Red Idle LED Light on Raspberry Pi 4 When Device is Turned Off

Turn off the power supply. The Red LED will light whenever 5V power is supplied unless you have running firmware to turn off the software. NOTE It is possible to configure the Pi4 to enter a low ...
Milliways's user avatar
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