Assemble the circuit on your solderless breadboard as shown in the circuit diagram. Shake your switch to test that it triggers your random sounds!

We found that sometimes on power-up the activation light would stick on, requiring a reset to the board. So you may optionally add a switch or button between Rst and Gnd to reset the board manually, or just take a jumper wire and plug/unplug after powering on.

Peel and stick the solderless breadboard to the inside of the box, and tape the battery pack and sensor down.

Optionally, transfer your circuit to a Perma-Proto board for a more permanent arrangement.

Try out both sensors before deciding which one is right for you, and make this sound prank your new family tradition!

This guide was first published on Feb 04, 2015. It was last updated on Feb 04, 2015.

This page (Build Circuit) was last updated on Aug 01, 2020.