This GPIO Pinout is an interactive reference to the Raspberry Pi GPIO pins, and a guide to the Raspberry Pi's GPIO interfaces.
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What do these numbers mean?
- GPIO - General Purpose Input/Output, aka "BCM" or "Broadcom". These are the big numbers, e.g. "GPIO 22". You'll use these with gpiod or GPIO Zero.
- Physical - or "Board" correspond to the pin's physical location on the header. These are the small numbers next to the header, e.g. "Physical Pin 15".
What's the orientation of this pinout?
Pinout depicts pin 1 in the top left corner. Pin 1 is the only pin with a square solder pad, which may only be visible from the underside of your Pi. If you orient your Pi such that you are looking at the top with the GPIO on the right and HDMI port(s) on the left, your orientation will match Pinout.
Graphical Pinout
We've whipped up a simple graphical Raspberry Pi GPIO Pinout. Feel free to print, embed, share or hotlink this image and don't forget to credit us!
