Keypad pin 4 to Arduino digital 8 //R4; Keypad pin 5 to Arduino digital 4 //C3; Keypad pin 6 to Arduino digital 7 //R3; Keypad pin 7 to Arduino digital 6 //R2; Since keypads are available from many ...

This Arduino project implements a keypad-based lock system. When the correct code is entered on the keypad, it unlocks a door by lighting a green LED. An incorrect code triggers a red LED to indicate ...

Fire Alarm System Project: Triggers an alert (buzzer or LED) when a gas/smoke or high temperature is detected. Interfacing 16x2 LCD Display with ATTINY85: Demonstrates how to use an LCD with an ...

45 thoughts on “ Arduino Keypad Door Automation ” ... This project was made during my spare time and since I’m both working and trying to get a phd, said spare time is very little.

While [Tony’s] example uses the keypad, Arduino Uno, and a character LCD, the theory can be applied to numerous projects, such as this Dahlander motor switch. As you see, state machines can be ...

In this project, we will learn how to make a simple calculator using an Arduino development board, an LCD display and a matrix keypad. The used inputs are captured using a 4x4 matrix keypad and the ...

This Arduino-based dual-mode scientific calculator is a versatile and efficient tool for both basic and advanced calculations. In normal mode, it functions as a standard calculator, performing ...

The Gesture Keyboard is a device that translates gestures into letters. It’s made by an Arduino Pro Micro, an HC-06 module for Bluetooth communication, and an MPU-6050 accelerometer.