Arduino DC-AC Power Inverter

How to generate 120 VAC from 12 volts DC with Arduino
See http://www.bristolwatch.com/ele/arduino_power_inverter.htm

Arduino stepper motor control:

Introduction to Arduino

Part 1: Programming Arduino Outputs

Part 2: Programming Arduino Inputs

Part 3: Programming Arduino Analog to Digital Conversion

Part 4: Programming Arduino Pulse Width Modulation
http://www.youtube.com/watch?v=3n7N2Zfvdtc

Duration : 0:9:56