Quentino
Introduction
My final project is an interactive zoetrope designed to be a fun and educational tool for children. The main idea is that, besides enjoying watching the animated figures come to life as the device rotates, children can learn something valuable. Each character used in the zoetrope will be accompanied by a story that they can read, focused on teaching soft skills such as empathy, communication or teamwork, helping to strengthen their personal growth.
The zoetrope's operation is simple but very ingenious: I designed a board with an ATtiny 1614 microcontroller that controls an infrared sensor and a motor. When a child places his or her hand near the sensor, the motor is activated and turns the zoetrope. At the same time, LED lights turn on, making the experience more magical and eye-catching.
To build it, I am using digital fabrication tools such as laser cutting and 3D printing. The main materials are MDF for the internal structure, which is sturdy and easy to work with, and TPU filament for the outer shell, which has a soft, child-safe texture. Everything is designed with functionality, safety and making the device visually appealing in mind.
This project not only seeks to be educational and interactive, but also to contribute to the emotional and social development of children through the stories of the characters. My goal is to connect technology, learning and imagination in a practical and fun way, leaving a positive imprint on their growth.
System Diagram
El zootropo funciona mediante la interacción de sus principales componentes electrónicos y estructurales:
Main components:
- ATtiny 1614 microcontroller: Acts as the brain of the system.
- Infrared sensor: Detects the presence of an object (such as a hand).
- Motor: Rotates the zoetrope when the sensor activates the signal.
- LEDs: Light up when an object is detected, providing an attractive visual element.
- Power supply: Provides power to all components.
Operation flow:
The infrared sensor detects a nearby object and sends a signal to the microcontroller.
The microcontroller simultaneously activates the motor and the LEDs.
The motor rotates the zoetrope, while the animated figures generate a visual effect that appears to give them movement.
The LEDs illuminate the device, enhancing the interactive experience.
Materials used:
- Internal structure: MDF, laser cut.
- Outer shell: TPU filament, 3D printed.
- Additional elements: LEDs, animated figures and connectors.
Task List
Introduction
To complete the project, I will follow these organized phases:
Phase 1: Design and planning.
Design the structure of the zoetrope, integrating the materials (MDF and TPU) into a functional model.
Define the location of the LEDs and infrared sensor to maximize aesthetics and functionality.
Create the electrical schematic to integrate all the electronic components.
Design the PCB board with the ATtiny 1614 microcontroller and verify the necessary connections.
Phase 2: Fabrication and assembly
Laser cutting: Fabricate the MDF parts for the internal structure.
3D printing: Create the external housing using TPU, ensuring a perfect fit for the sensor, LEDs and motor.
Solder the electronic components onto the PCB and assemble the entire system into its structure.
Phase 3: Programming and testing
Program the microcontroller to:
Detect the infrared sensor signal.
Control the motor and LEDs in sync.
Test the entire system to ensure that the interactions between sensor, motor and LEDs work smoothly.
Adjust software and hardware as necessary.
Phase 4: Optimization and documentation
Adjust aesthetic and functional details, such as LED intensity or motor speed.
Document the entire process, including images, diagrams and videos of the device in action.
Prepare a clear and attractive final presentation to showcase the project.
