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How to Connect a Drum Trigger to an LED

Drum triggers are used with electronic drum pads. When the drum pad is struck the sound is transferred from a piezo transducer to a speaker or amplifier. A piezo transducer is a small metal disc attached with wires sending an electronic pulse. As a science project for school you can illuminate an LED light by wiring it to a wire a piezo transducer of a drum trigger. To do this, you will require the use of a transistor.

Things You'll Need

Piezo transducer
Wire strippers
Battery box
LED light
Transistor
Electrical wire
Soldering iron

Instructions

- 1
  Pry the casing off of the piezo transducer by using the pliers. Strip 1/4 of an inch of insulation from the wires with the wire strippers.
- 2
  Strip 1/4 of an inch of insulation from the red and black wires of the LED light. Connect the piexo's red wire to the ̶0;positive̶1; terminal on the battery box.
- 3
  Solder the piezo's black wire to a resistor with the soldering iron. Solder the red wire of the LED to the transistor. Connect the LED's black wire to the ̶0;Negative̶1; terminal on the battery box.
- 4
  Insert the batteries into the battery box. Press on the metal plate of the piezo transducer to power on the LED light.

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