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Roller Derby Stopwatch v1

by Member #428640

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Parts needed to build the Derby Gadgets Design Collective Stopwatch.

These parts are for the first prototype version. You will also need an enclosure (I used a $1 plastic soap container from Target), four rechargeable AA batteries (don't use Alkaline, they may fry it), hook-up wire, solder, and an AVR programmer (you can use an Arduino for this).

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Product Subtotal Qty
Battery Holder - 4xAA Square
In stock PRT-00552 		2.1 1   
AVR 14 Pin 20MHz 8K 12A/D - ATtiny84
Retired COM-11232 		4.95 1   
Cannot be ordered at this time.
Basic 8x2 Character LCD - Black on Green 5V
Retired LCD-11122 		9.95 1   
Cannot be ordered at this time.
Momentary Pushbutton Switch - 12mm Square
In stock COM-09190 		1.1 2   
Trimpot 10K Ohm with Knob
In stock COM-09806 		1.05 1   
ProtoBoard - Square 2"
21 available PRT-08811 		3.5 1   
Total: 22.65
Start a project on Hackster.io with this stuff

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