Arduino Tutorials

Sensing

1. Potentiometer
2. Ultrasonic Sensor (Ping and HC-SR04)
3. PIR (Passive Infra-red)
4. Photocell, Thermistor

Actuation

1. Servos
2. DC Motors and the H-Bridge
3. Stepper Motors

Some of the Arduino sketches described in the tutorials are posted below.

An easy to read reference book on Arduino Programming is posted at http://playground.arduino.cc/uploads/Main/arduino_notebook_v1-1.pdf