Introduction: Interactive Pumpkin

Hi, this is my first instructable. We were asked to do a project involved in a 'Halloween week theme' using Arduino. The project was for 'Use of English I', a 3rd grade subject of the Industrial Design Engineering bachelor at Elisava School of Design. It's an interactive pumpkin made to be a decorative object using Arduino UNO R3.

This project was made by Alexia Boet and Sara Perez.

Step 1: Step 1: What You'll Need


  • 1 box
  • 1 pumpkin
  • 1 RGB LED
  • Arduino Uno
  • Breadboard
  • Ultrasonic Sensor HC-SR04
  • 1 servo motor MMSV001
  • Jumper cables
  • 9V Battery for the servo

Step 2: Step 2: the Circuit

This is the arduino connection scheme. There's 1 servo connected to ground, 5V and pin 11, and then the proximity sensor tied to pins 5 and 6. There's also the LED tied to pins 8, 9 and 10. These (pictures above) are the connection schematic used (left) and how it looked at the end once built (right).

Step 3: Step 3: the Code

Here we have attached the Arduino Code with every step well explained. (You can find the file attached)

Step 4: Step 4: Final

This is how it looked when it was built. We also attached a video so you'll be able to know how it works.