RPi Breadboard+ is a solderless prototyping breadboard add-on for the Raspberry Pi. Using the breadboard and female to female wires you can quickly prototype and test your electronic design.
A large portion of the add-on is taken up by a 140-pin breadboard and surrounding the breadboard on all four sides are a number female headers.
All of the Raspberry Pi GPIO signals are brought out to two 16-pin female headers located near the top and bottom of the breadboard. 3.3V (5-pin), 5V (5-pin) and 0V/Ground (12-pin) power supplies are also brought out to female headers located to the sides of the breadboard.
The add-on features 3x LED’s (red, yellow and green) and 2x push-button tactile switches each having a 2-pin female header for easy use with the rest of the board.
Size wise it conforms to a standard HAT board size (65 x 56mm) and mounting holes. So its compatible with the Raspberry Pi A+, B+ and Pi2.
There is an EEPROM PCB footprint for future HAT configuration compatibly but its not fitted on this version.
You can find them on Tindie here.