Seeed Studio Electronic Brick Shield
Photo: Seeed Studio
Shield URL: Electronic Brick Shield
Maker: Seeed Studio
By using electronic bricks, you may connect Arduino compatible boards easily with various digital, analog and I2C/Uart interfaces. These the breadboard-less firm connection are prepared to extensive modules like poteniometers, sensors, relays, servos, and buttons.
Each terminal module has buckled port with VCC, GND and Output, which has corresponding port on the sensing board, with a plain 2.54mm dual-female cable you may start playing already.
Open Source: Unknown
This shield is primarily a breakout board for alternative connectors, so it provides access to all I/O lines but does not necessarily require any of them in particular. You can use as many or as few of the pins as you like.