Exam countdown, paper counter, temp and humidity, timers and a chess clock on an Arduino UNO, driven by one joystick.
Slim retro gamepad with RP2040, KY-023 analog stick and 4 buttons: driverless USB HID on PC, Recalbox, RetroPie and Android.
A joystick-driven Arduino UNO desk console for students: temperature, humidity, Pomodoro, dice, chess clock. Grove, no soldering.
