The ULN2003A is a seven channel Darlington (NPN) array which able to control seven output.
Photos (with iBoard):
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4x20 LCD display can be used to display up to maximum of 80 characters. Free Hi-Tech C coding is provided for the LCD control.
This tutorial shows how to use iCP05 iBoard Lite, 2x16 LCD and a serial RC circuit as an OhmMeter.
Pin Header (2.54mm, Straight, 2x6 Way, A:6mm)
4x4 Keypad is used to allow user to key in decimal number (0-9), (A-D), * and # keys.