Introduction: Alarm for Bedroom With Lights and Sounds!
Hi, today I will show you how to make an alarm for the door of youre bedroom with Arduino UNO.
Step 1: Materials
• 4 pieces of cardboard (measures in the photo)
• 15 pieces of cardboard (measures in the photo)
• Ultrasonic Sensor
• 9V Battery
• Active Buzzer
• Red and green leds
• 2x 220 ohm resistor
• Arduino UNO (I use Elegoo UNO R3)
• Little Breadboard
• 3x Male-to-male cables
• 10x Female-to-male cables
• Snap-on Connector
Step 2: Circuit Diagram and Codes
Follow the diagram for circuit and download the code.
Step 3: The Robot Head
Cut the eyes so that the Ultrasonic Sensor passes us;
then paste all.
Step 4: The Robot Body
Paste 5 equal cardboard pieces to make a cube without the top part;
After decorate the cube;
Paste the little pieces in the cube;
Decorate the last piece;
You have the cube!
And now make the holes for leds and the buzzer.
Step 5: Put the Circuit in the Robot
Put the circuit in the robot;
Put in the holes the leds and the buzzer;
Get the Ultrasonic cables and the Snap-on cable in the hole of the top;
Close the box;
Add the head, decorate the robot and hide the battery under the head.
Step 6: Finished
And that's it!!
Participated in the