Bang Head On Keyboard

My First and Best DIY project with mini stepper motor. A small stepper motor without gearing mechanism is quit ugly. You will never be sure that it come to the position, that you want.

Hardware

• Adafruit Trinket or other ATtiny85 board, with programmer or Bootloader
• some wire
• one 2-Phase 4-Wire Mini Stepper Motor 3-5V
• one 2-channel DC motor driving module or stepper motor driver module

Design

Circuit

In Action