RDB1768 User Headers
User Header1 (UH1) and User Header2 (UH2) are on the top of the board and give the user access to all the IO pins on the LPC1768 part.
All of the board peripherals can be disconnected from the chip IO pins by the removal of the corresponding 'LKx_y' links on the board.
UH2: User Header 2
UH1: User Header 1