This little guy, while simple in nature, acts as a fully functional (and portable) keypad on the go! It comes with two main programs, and it connects easily to your Arduino. It can be used to: 1 ...

DESCRIPTION : This project demonstrates how to interface a 4x4 matrix keypad with an LCD (16x2) display using an Arduino board. The system captures key presses from the user via the keypad and ...

Posted in Arduino Hacks, computer hacks Tagged serial, usb, usb keyboard ← Casual Tetris Comes In At $9 A 3D-Printed Bass Guitar → ...

Hardware Requirements Arduino Board (e.g., Uno, Nano, or compatible) 16x2 LCD Display (HD44780 compatible, with I2C module or direct pins) 4x4 Matrix Keypad HC-SR04 Ultrasonic Sensor Piezo Buzzer 1x ...

The Watch-Keyboard-C3 kit includes a mini keyboard, and a 160 MHz ESP32-C3 single-core RISC-V microcontroller and support for WiFi 4 and Bluetooth 5.0.