Toothless Candy Bucket Project

The Inventors <3

Project Introduction

Caiya and Erin designed an interactive candy bucket inspired by the lovable dragon, Toothless, from the film How to Train Your Dragon. Taken from the iconic scene where Toothless places his snout on Hiccup’s outstretched palm, the candy bucket opens its mouth when the nose is touched and plays a clip from the awe-inspiring theme song, “Test Drive”.

Project Abstract

The project takes inspiration from Halloween candy buckets to create a Toothless suprise complete with music, lights, and an interactive jaw mechanism. The final working prototype starts with the participant rubbing Toothless’ nose to trigger the capacitive touch sensor which will trigger the servo motor to open the mouth while the theme music plays via the DFP in the background. Then as the participant goes into the mouth to grab a piece of candy, the IR proximity sensor is triggered and the servo motor is set to close on the participants hand while a ROAR plays on the DFP in the background before going back to it’s initial position. The project also includes an E-stop button to reset the process. The touch sensor and DFP player are interfaced via the MCU as well as the IR proximity sensor through a Analog-to-Digital Converter (ADC). The servo motor and LEDs are interfaced via the FPGA where the LEDs recieve a SRAM signal from where the embedded LED show memories are stored.

Project Demonstration

Here are two videos of the working product! The first video below is during our project showcase day with our clean product and dragon stand implemented.

Video from project demonstration of the final product. Toothless opens its mouth when the nose is touched and “bites” the user when a hand is placed over the middle of the mouth with candy inside.

Due to the background audio obscuring the music from the speaker, the second video below is provided of the working product before cleaning to showcase the music.

Video from earlier stage. The music being played is more audible in this video. The theme song “Test Drive” plays when the nose is touched and Toothless’ roar is played when a hand is detected.

Open Source Code

The link to all code used for this project can be found on Github here.