This is an add on prototyping Pi T-Cobbler from Adafruit, which can break out power, GPIO, I2C and SPI pins from the Raspberry Pi 26 pin header onto a solderless breadboard. This mini kit will make "cobbling together" prototypes with the Pi easier. Designed for Raspberry Pi Model B Revision 1 or Revision 2.
The Pi T-Cobbler mini kit comes with a 26 pin ribbon cable, a custom PCB, ribbon cable socket and header pins. A little soldering is required to put it together but it's really easy, even a beginner can do it in 15 minutes. Once soldered together, the cable plugs between the Pi computer and the T-Cobbler breakout. The T-Cobbler can plug into any solderless breadboard (or even a prototyping board). The T-Cobbler PCB has all the pins labelled nicely so you can go forth and build circuits without keeping a pin-out printout at your desk.
The Pi T-Cobbler is compatible with both versions 1 and 2 of the Raspberry Pi Computer - for version 2 computers, note that the GPIO #21 has been replaced with GPIO #27 and that the I2C pins are now I2C port #1 instead of #0. All other pins are the same.
Note: this kit only contains a 26 pin ribbon cable, a custom PCB, ribbon cable socket and header pins. A Raspberry Pi, breadboard, jumper wires, cables, components, case, power supply, etc are not included.