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laser_tripwire_rubber_band_shooter [2018/07/16 16:58]
laser_tripwire_rubber_band_shooter [2018/08/08 17:01]
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|+||====== How it works ======|
|+||A laser constantly shines on a [[https://en.wikipedia.org/wiki/Photoresistor|photoresistor]]. The Arduino constantly reads the voltage from a voltage divider made from a photoresistor and a 20k resistor. When a person interrupts the laser beam, the resistance of the photoresistor drops. The Arduino detects this as a change in voltage and sends a signal to the servo to change positions, releasing a rubber band.|
|====== Wiring Diagram ======||====== Wiring Diagram ======|