Raspberry Pi Pin Diagram Explanation. The genesis of the raspberry pi came from a few college students concerned about the dwindling number and skills of students applying to study computer science. A 40 pin gpio header is found on all current raspberry pi boards unpopulated on pi zero and pi zero w.
Newer computers and game consoles have replaced the old machines where most of us learned to program. Here s a map and detailed explanation of what each does including on the pi 4. Pinout depicts pin 1 in the top left corner.
Here s another diagram showing the layout of the pins.
Prior to the pi 1 model b 2014 boards comprised a shorter 26 pin header. It is mini size computer used mostly to run larger and smart programs to achieve output quickly. It shows some of the optional special pins as well. Here s a map and detailed explanation of what each does including on the pi 4.
