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.

Code voor de "Arduino voor beginners in het Nederlands" YouTube videoserie - BasOnTech/Arduino-Beginners-NL ...

In this project, we'll go over how to interface a 4x4 membrane keypad with an Arduino microcontroller. By the end of this tutorial, you'll be able to read the state of the keypad and determine which ...

This code (Buttons.h & Buttons.cpp) defines 3 classes: Buttons - the basic class - handles multiple buttons easily. Keypad - inherits from Buttons, handle a matrix buttons keypad easily. Joystick - ...

The OONTZ uses a 3D printed case, a 16 button keypad, an Arduino Leonardo, a monochrome driver, and a few potentiometers. It's actually a pretty simple thing to build yourself provided you can the ...

The 4xMacropad is a low-cost, open-source hardware 4-key mechanical macro keyboard based on WCH CH552G 8051-compatible USB microcontroller and whose keys can easily be configured from a web browser ...

The T-Keyboard-S3 Pro adds ESP32-S3, STM32G030, magnetic links, a fifth screen/encoder, and supports 6 devices in a 2x3 grid.

The latest addition to the popular CapSense Express capacitive touch-sensing controller line, the CY8CMBR2016 device enables designers to implement capacitive matrix button systems ...