The GPIO extension kit is used for extending the GPIO interface on Raspberry Pi B+, it helps you break out all those tasty power, GPIO, I2C and SPI pins from the 40 pin header of Raspberry Pi B+ onto a breadboard.

Corresponding Interface:

  • Pin1 - 3V3
  • Pin2 - 5V
  • Pin3 - SDA
  • Pin4 - 5V
  • Pin5 - SCL
  • Pin6 - GND
  • Pin7 - GPIO4
  • Pin8 - TXD
  • Pin9 - GND
  • Pin10 - RXD
  • Pin11 - GPIO17
  • Pin12 - GPIO18
  • Pin13 - GPIO27
  • Pin14 - GND
  • Pin15 - GPIO22
  • Pin16 - GPIO23
  • Pin17 - 3V3
  • Pin18 - GPIO24
  • Pin19 - SPIMOSI
  • Pin20 - GND
  • Pin21 - SPIMISO
  • Pin22 - GPIO25
  • Pin23 - SPISCLK
  • Pin24 - SPICS0
  • Pin25 - GND
  • Pin26 - SPICS1
  • Pin27 - EEDATA
  • Pin28 - EECLK
  • Pin29 - GPIO5
  • Pin30 - GND
  • Pin31 - GPIO6
  • Pin32 - GPIO12
  • Pin33 - GPIO13
  • Pin34 - GND
  • Pin35 - GPIO19
  • Pin36 - GPIO16
  • Pin37 - GPIO26
  • Pin38 - GPIO20
  • Pin39 - GND
  • Pin40 - GPIO21

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