The Arduino-Based Password Protected Security System is a simple yet effective security solution designed to restrict access to secure areas using a keypad for password entry. This project uses an ...

Wiring configuration to meet the SPE standard. You’ll find rather detailed hardware documentation and instructions to get started with the Arduino UNO R4 WiFi, including wiring and termination ...

An open source and fully customizable keypad for osu. (based on the arduino pro micro and it's atmega32u4 chip.) - GRBL-F/OpenKeypad ...