Use the USB port on your computer to interface to various electronic devices.
USBmicro U401 Versatile I/O
USBmicro U421 Versatile I/O
USBmicro U451 Relay Board
USB PIR detector
CircuitGizmo Parts
Relay
30 Pin Header
3-position Screw Terminal
Home Domination
Temperature Sensor
Project Box
Red LEDs
Society of Robots Kit
Small Pushbutton
See More CG Products
Run BASIC, interface circuits!
Dual In-line Package, 50V/500mA 8 channels
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ULN2803 8 Channel Darlington Driver
DIP (Dual In-line Package) eight channel Darlington driver. 500mA per channel, up to 50V. This device can
be driven by the output of a U4x1 device and be used to drive heavier devices - strings of LEDs, relays, motors, etc.
Download pdf datasheet: CGRelay1
For projects using this part, see:
Gizmo Project driving a relay
Gizmo Mail Light Project
Other products that go well with this:
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