Mini Zoetrope

thingiverse

This is one of my go-to projects. The diameter of the drum is based on an A4 format, which has a length of 29.7 mm. This means the diameter of the drum comes out to be 92.30 mm and its height is 25 mm, allowing you to create 8 strips of standard A4 size. The software for this project is straightforward. Two ATtiny85 chips serve as mini servo engines, controlling a 9g motor each with a 10K potentiometer. Another chip handles flashing the white LED light. For lighting, three LEDs are connected in parallel with a 100 ohm resistor in series with the power supply. The power source used here consists of three AA batteries that are mounted underneath the device. You can also check out this similar project at https://www.instructables.com/id/Mini-Zoetrope/.