P5 header2

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.

TFT Shield TFT shield

Here are their functions;
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.

TFT Shield TFT shield


11 thoughts on “Expand the Number of GPIO Pins on the Raspberry PI”

  1. Did you use these exclusively for the display? Or did the display require more GPIO pins? I’m curious because I am trying to attach an adafruit TFT display to my Raspberry Pi, and don’t have the budget to buy it if it wont work.

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