Audio Alert version 2

This Audio Alert box is placed between an audio source and an audio consumer such as an FM transmitter or amplifier. When the alert box wirelessly receives an encoded message, it breaks into the audio stream from the source and plays the mp3 sound clip related to the message received.

See the original Audio Alert description for more: https://www.thingiverse.com/thing:2754869

This new version uses different components and is designed around a finished SMD PCB.

This 2nd version of the