Tag Archives: gpio

Expand the Number of GPIO Pins on the Raspberry PI

As of revision 2 boards, there is space to add some header pins to get access to eight more GPIO pins. These are found on the Header 5. Highlighted below.

Raspberry Pi P5 header

Raspberry Pi P5 header

 

 

Here are their functions;
Raspberry Pi P5 header GPIO P5

  • P5-Pin1 – 5v0
  • P5-Pin2 – 3.3v
  • P5-Pin3 – GPIO28
  • P5-Pin4 – GPIO30
  • P5-Pin5 – GPIO29
  • P5-Pin6 – GPIO31
  • P5-Pin7 – GND
  • P5-Pin8 – GND

I needed some more pins for PiBBOT as I want to change my TFT to a character OLED which needed more pins then I had spare, so I decided to make use of these extra pins.

Here are the results, I soldered the head onto the underside of the Pi so I could plug in an IDC cable.

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