I had a little recording/playback module lying around and thought it would be a great idea to have a little sound effect play when the Lid opened. The module I used was the ISD1820. Recording and playback could be controlled by both on-board buttons or a rising edge from a microcontroller. Only problem was that the volume level in playback was very quiet. To boost up the volume I bought a Class D amplifier from Adafruit, the PAM8302A. This can be enabled/disabled with a high/low logic level.

Once again placing the boards on electrical tape as the container is fully conductive.

The wiring is starting to get a bit messy!

Getting close to having the hardware completed. Just need to add in the second servo motor to push the plush mushroom out of the block.