Safe Off Switch to Power Down Your Raspberry Pi

Some time it is hard to find solution for raspberry pi.This time we are solving issue : how to Power Down Your Raspberry Pi using GPIO.Step1:copy script from power_hold.pyStep2: sudo apt install python3-gpiozero#connect button GPIO 21 and GND#run below command to testpython3 power_hold.py# hold button(gpio21 and GND) for 2 second . your pi will be shutdown.If it is ok then power on your pi3 againStep3:Now execute your script ,when raspberry pi power on every time. sudo nano /etc/rc.local in rc.local file at...