3 This is a one-key WiFi UDP 'keyboard'.
5 The hardware is a Raspberry Pi Pico in a 3d-printed shell connected to
8 The client software that runs on the device connects to a WiFi network
9 and sends UDP packets to an address specified in `client/config.c`.
10 It transmits each keypress several times for reliability, with relative
11 timestamps so the server can determine the time of every press without
12 the device needing to synchronize a clock.
14 The server software collects and de-duplicates keypress reports.