Entry Level Door Monitoring Alarm System

Alright! So the idea struck out of blue one day when I was shocked to see someone sitting outside my office enjoying reading a newspaper!

I had no idea who this person was, when did he come and since how long was he enjoying his unsolicited stay just outside my cabin? You must be thinking what a fool I am but you gotta trust me on this, my office is one of the creepiest that one can get anywhere. Seriously!

I had an Arduino UNO clone ready at my disposal. So, all that I needed was an ultrasound sensor, and a Buzzer. Rest of the steps, circuit assemblies, software code are ensued in this tutorial. I hope this would excite few electronics newbies out there.

Step 1: What You Need?

1 x Arduino UNO
1 x USB Type-B Cable
1 x Ultrasound Ultrasonic Sensor HC-SR04
1 x Buzzer
1 x Breadboard or Mini Breadboard
1 x 9V Battery Snap or 9V Battery Holder 

Male-to-Male Jumper Wires
1 x Computer with Arduino IDE installed


Optional

Arduino Uno R3 Acrylic Transparent Casing Box
Ultrasound Ultrasonic Sensor HC-SR04 Holder
USB To Power Jack Cable
Female-to-Male Jumper Wires

Don't have components? Don't worry. Just click the component's name. 

Step 2: Build Your Circuit.

Step 3: Upload The Code.

Download:

Arduino IDE

Source: here

 

Unknown

Author & Editor

My Robot Education Sdn. Bhd. (Robotedu.my) was founded in 2015 as the first robotics education centre in Malaysia to provide Arduino-based robotics courses for youths. Our vision is to be able to provide robotics education to every youth in Malaysia.