Knock Sensor

Proof of concept complete! Jake has gotten a piezo to turn on an LED with the A0 pin. Learning to solder and read schematics is fun!

Next stop, figuring out how to turn the digitalWrite(ledPin, HIGH); into a snare drum! Then into transistors for the 12V LED chains. Progress!

Thank you to:

http://www.learningaboutelectronics.com/Articles/Piezo-knock-sensor-circuit.php

for the help