The keypad uses an onboard ATMega328P to scan the matrix for button presses, decode them, and send them via UART or I²C to an Arduino. [ELECTRONOOBS] has the PCB files available via Patreon for ...

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 ... Next is a project example, where ...

Pacman Game on Arduino Due with ILI9341 and VGA support (available 2 outputs at the same time), playable with keypad, 5 sample levels, VGA output is 240×320. To Do: fix glichies… If you liked ...

Arduino enthusiasts or those looking to learn ... in a new Kickstarter campaign and Arduino compatible 42-Digit SPI Keypad Matrix which is being created by Kickstarter entrepreneur Patrick Thomas ...