Keyboard Noise Maker

Ever wanted a clicky keyboard but only had a boring quiet one? The solution is here! This is a dedicated hardware "clicker" that you can associate with any USB keyboard. A daemon running on the host computer listens to events from the keyboard and forwards them to an MCU that does the needed clicking.

Hardware

Arduino
Relay module
Bell(?)

Software

USB HID listener attached to a single USB keyboard (tested on Linux)
output of the listener redirected to Arduino's serial port

Running

Flash the Arduino code, build the host daemon, run it and redirect it to the Arduino's serial:

cd hid_listen
make
sudo ./hid_listen > /dev/ttyUSB0

TODO

USB device IDs are hard-coded, should be taken as CLI parameters

Sources

USB Raw HID

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