# Raspberry Pi Pin Numbering

Rev 1/Rev 2 columns contain the BCM pin numbers for the board revision 1 and 2.



| W'Pi | Rev 2   | Rev 1   | L  | R  | Rev 1   | Rev 2   | W'Pi |
|------|---------|---------|----|----|---------|---------|------|
|      |         |         | 1  | 2  |         |         |      |
| 8    | GPIO 2  | GPIO 0  | 3  | 4  |         |         |      |
| 9    | GPIO 3  | GPIO 1  | 5  | 6  |         |         |      |
| 7    | GPIO 4  | GPIO 4  | 7  | 8  | GPIO 14 | GPIO 14 | 15   |
|      |         |         | 9  | 10 | GPIO 15 | GPIO 15 | 16   |
| 0    | GPIO 17 | GPIO 17 | 11 | 12 | GPIO 18 | GPIO 18 | 1    |
| 2    | GPIO 27 | GPIO 21 | 13 | 14 |         |         |      |
| 3    | GPIO 22 | GPIO 22 | 15 | 16 | GPIO 23 | GPIO 23 | 4    |
|      |         |         | 17 | 18 | GPIO 24 | GPIO 24 | 5    |
| 12   | GPIO 10 | GPIO 10 | 19 | 20 |         |         |      |
| 13   | GPIO 9  | GPIO 9  | 21 | 22 | GPIO 25 | GPIO 25 | 6    |
| 14   | GPIO 11 | GPIO 11 | 23 | 24 | GPIO 8  | GPIO 8  | 10   |
|      |         |         | 25 | 26 | GPIO 7  | GPIO 7  | 11   |
|      |         |         |    |    |         |         |      |
|      |         |         | 1  | 2  |         |         |      |
| 17   | GPIO 28 | GPIO 28 | 3  | 4  | GPIO 29 | GPIO 29 | 18   |
| 19   | GPIO 30 | GPIO 30 | 5  | 6  | GPIO 31 | GPIO 31 | 20   |