New standards for GPIO boards on the #RaspberryPi B+

There are two pins on the GPIO on the new B+ all to do with EEPROM. Now, it doesn’t really matter to most users what these pins do, but for those who are developing add-on boards that plug into the pins, it could make all the difference. According to James Adams of the Raspberry Pi Foundation, these pins can be used to allow add-on boards, called HATs (Hardware Attached to the Top) to program the Pi on boot-up and create new and exciting behaviours. You can read the current technical specs and documentation by visiting this GitHub site (although it’s currently a work-in-progress) and you can hear more from James about the potential of the EEPROM pins by reading this interview on

3 comments for “New standards for GPIO boards on the #RaspberryPi B+

  1. Andrew Schroeder
    24 July 2014 at 2:42 pm

    Hi there Michael,
    Have you considered adding to your list of great sites?

    • 24 July 2014 at 3:00 pm

      I’ll consider that a nomination 🙂

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