Easy. The 5V pin can be used in two ways. Firstly it can provide 5V power to other devices connected to the GPIO header. This basically comes from the USB power supply to the Pi through to the header. It's true that you can't connect 5V signals to the GPIO pins, but you can convert 5V to 3.3V if you need to. You could use the 3.3V pins on the GPIO header if you want, but they can not provide as much current as the 5V pins can.Why is the Raspberry Pi provided with 5V pins but the GPIO is only allowed to use 3.3V?
Actually, under what circumstances can I use my 5V Pin?
Please help explain this, if you can use simple sentences so that I can understand it.
Thank you
The second function is to provide an alternative way to power the Pi. Instead of connecting power to the USB power input you can supply 5V via the GPIO header. This might be desirable in certain circumstances.
Statistics: Posted by ame — Fri Jan 05, 2024 3:25 am