by ElectricSlim, published
Audio system in a jar!
This print allows you to attach a 2" speaker to a wide mouth mason jar and turn it into a mono speaker system.
The electronics and battery is mounted to the electronics plate. The plate slides into the bottom of the lid and rests in the grooves of the lid.
The audio system is based around a LM386 amplifier. The lighted jar is a single RGB led and controlled by an ATtiny85 microcontroller. The mason jar has been frosted to diffuse the light.
For the next iteration, I want to explore using FFT to create music based light displays.