The ULN2003A is a seven channel Darlington (NPN) array which able to control seven output.
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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:11mm)
Pin Socket (2.54mm, Straight, 1x6 Way)
iBoard Tiny Extensions is a mini size 8-pin Microchip PIC12 IO Development Board with direct 3x input and 3x 300mA output control/driver.