This is a project I did using an Arduino Uno. Every time the user pulls up to the bar, it adds "1" to the count. Use it to reach personal bests. Check out the instructables for video and hardware ...

Libaries, wiring, and example code for various inputs / outputs for Arduino and other microprocessors When you need more inputs/outputs for your Arduino project, the response in some forums is "Use a ...

With your breadboard connected to the Arduino and the power supply plugged into an outlet, plug the Arduino back into the computer with the USB cable. Next, run the Processing code we compiled ...