This document describes how to build an AR-9 motorized pinwheel using an Arduino, transistors, and a motor. Transistors allow controlling high power sources like motors from the low power Arduino output. Motors are inductive devices where changing electric current generates a changing magnetic field that causes the motor to spin.

1. AR-9 Motorized
Pinwheel
By Liam, Keegan, Riley, Reid, Trevon

2. Arduino Code

3. Circuit

4. New Components
Transistors are components that allow you to control high
current and high voltage power sources from the low current output
of the Arduino.
Motors are a type of inductive device. Induction is a process by
which changing a electric current in a wire can generate a changing
magnetic field around the wire.