Pin Numbering - Raspberry Pi Model B (Revision 1.0)
Numbering Scheme
Pi4J (by default) uses an abstract pin numbering scheme to help insulate software from hardware changes.
P14J implements the same pin number scheme as the Wiring Pi project. More information about the WiringPi pin number scheme can be found here: http://wiringpi.com/pins/
Pi4J provides a RaspiPin enumeration that is used to manage the accessible GPIO pins.
(NOTE: Pi4J also can be configured to use the Broadcom Pin numbering scheme.)
Please see this page for more information on both the WiringPi and Broadcom pin numbering schemes:
>> Pin Numbering Schemes
Expansion Header
The Raspberry Pi Model B board revision 1.0 contains a single 26-pin expansion header labeled as 'P1' providing access to 17 GPIO pins.
P1 Pinout (26-pin Header)
The diagram below illustrates the GPIO pinout using the Pi4J/WiringPi GPIO numbering scheme.
Additional Resources
- Please visit the usage page for additional details on how to control these pins using Pi4J.
- Click here for more information on the P1 header.
- Click here for more information the Raspberry Pi pin functions.