The Breadboard Shield allows you to easily connect and disconnect a 400 tie breadboard from your arduino Uno:
All of the Uno's pins are connected to the shield. Even the ICSP pins in the middle of the baord. Allthough the ICSP pins are available elsewhere having the accessable on both ides of the shield make for convient wiring. It will also work on the Arduino Mega but you will not have access to all of the Mega ports on the shield.
The six pin header on the lower left is connected to the ICSP grouping. Each pin is labled for ease of identification. On the lower right side of the board is a six pin header connected to the two open buttons and the two LEDs on the lower right. Starting a the top of the Button / LED (lower right) the pin mappings are:
Other features include: