XBee

• Use the Hobbyduino XBee Plug for Wireless Arduino Programming – This tutorial covers using the Hobbyduino XBee Plug to wireless program an Arduino (Hobbyduino Mini V3 for this tutorial).

Light Sensor

• Use a Light Dependent Resistor (LDR) to Measure Light Levels – This tutorial covers using a Light Dependent Resistor (LDR) to measure light levels in a room and vary the blink rate of a LED.

Potentiometer

• Measure the Voltage Across a Potentiometer – This tutorial demonstrates how to measure a voltage across a potentiometer.  The measured value in this tutorial is limited to 0 to 5 VDC.