WebJack Demo

WebJack is a JavaScript library that uses an audio modem to communicate with an Arduino µC via headphone jack. No need to install anything.

Make sure the audio cable is connected and your Arduino is running one of the example sketches. Eventually, crosstalk between signal lines will make sent data appear in the received box.

Received data:

WebJack is in an early development stage. If it does not work, try to:

use an other browser (Safari will not work, sorry)
pump up the volume