Introduction

In this project, we’ll look at how to protect your home or outdoors with a presence detector. It checks that there’s nobody in the room you want to monitor, and if it detects anything it will signal it by sounding an alarm from the buzzer and writing “ALERT” on the lcd screen.

Difficulty:

Materials required

We will now list the hardware required for the project:

Schematic diagram

What's the potentiometer for?

The potentiometer adjusts the screen brightness. You can do without it by connecting 5V directly to the brown wire, and the GND that runs from the potentiometer to the screen can be connected directly to the Arduino board.

Project program

How do I upload the program onto the Arduino board?

To put the program on your Arduino board, you’ll need the Arduino Ide software. Simply open the software and load the program, then plug in the Arduino board and upload the program to it.

Project simulation

Here is the project simulation on tinkercad :