Backyard games like Cornhole are a lot of fun. But you can make them even better by adding lights and sounds. By hooking up some simple electronics, you can make the board light up and play a victory fanfare whenever someone scores. Here is how to make it.
Projects from Make: Magazine
Add Light Up Effects to Backyard Games
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Steps
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Step #1: How the sensor works
- To detect when someone scores, I am using a basic light sensing circuit. A laser pointer is set up on one side of the hole. On the other side of the hole, a light detector is positioned in line with the laser pointer.
- The light detector that I am using is a photoresistor that is wired in series with a 10 kohm fixed resistor. The 10 kohm resistor is connected to 5V and the photoresistor is connected to GND. The center pin between them is connected to an analog input pin on the Arduino.
- When the light beam of the laser pointer is interrupted by the bag going through the hole, the voltage at the center pin goes up. This change in voltage is detected by the Arduino and the Arduino activates lights and sounds.