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 ...

This can cause the car horn itself to beep on its own ... and if there are, the beeping will sound off. These sensors can also determine if there are any air bubbles within the fuel line.

According to studies, the excessive use of car horns has been found to be one of the leading causes of road rage incidents. In fact, that’s why unnecessarily beeping the horn is considered a ...