The ULN2003A is a seven channel Darlington (NPN) array which able to control seven output.
Photos (with iBoard):
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8x Servo & ADC Port is used to extend the normal IO port to 8x Servo Motor and Analog Sensor ports.
Pin Header (2.54mm, Straight, 1x40 Way, A:6mm)
Blank prototype board for iBoard Tiny series with expandable design.
Plastic Screw & Spacer (Spacer L:6mm)