For a fancier solution, [Tom Hammond] whipped up a custom car horn capable of playing a wide variety of sounds. The system uses the Adafruit Audio FX board. This is a unique part, which is ...

For a fancier solution, [Tom Hammond] whipped up a custom car horn capable of playing a wide variety of sounds. The system uses the Adafruit Audio FX board. This is a unique part, which is ...

There's nothing quite as anxiety-inducing as hearing the ear-splitting sounds of a firetruck as it races past your car or through your ... be rapidly repeated air horn short blasts for 10 seconds ...