Raspberry Pi 1A and B Revision 2

System on Chip Broadcom 2835
Number GPIO 20
Status Fully supported

Supported Features

Read / Write yes
Interrupt yes

GPIO Mapping

../../_images/rasberrpypi1b2.jpg
5v 5v 0v 15 16 1 0v 4 5 0v 6 10 11
3.3v 8 9 7 0v 0 2 3 3.3v 12 13 14 0v
5v 5v 20 0v
3.3v 17 19 0v