A keypad is one of the most commonly used input devices in microprocessor applications. In a standard keypad wired as an X-Y switch matrix, normally-open switches connect a row to a column when ...

This is a RELEASE build of oipoi. oipoi is a DIY osu! keypad built using an Arduino Uno and a Python-based USB keyboard (HID) emulator. The Arduino reads button inputs and sends them over Serial. A ...