Get a copy of the schematic.

Download the test firmwares.
test_output
test_input

Test_output tests the LCD, LEDs, 4-digit display, 1-digit display, dot matrix display, & speaker.

Test_input tests the keypad & the 4 push buttons. The LEDs will respond when the keypad or push buttons are pressed.

Download the test firmware to the board using the Silicon Lab IDE. See the illustration on the left on how to download the firmware
To further develop more test firmware, you may download the source codes here.
 

LeongKJ, April 2010 ©