Getting Started with Sensors

Appendix D. Bill of Materials

This section lists the parts you’ll need to complete the projects in this book.

Chapter 1

The parts for “Project 1: Photoresistor to Measure Light” are as follows:

• Photoresistor

• 5 mm red LED (different LEDs will work differently with this circuit; later, you’ll learn a more sophisticated way to fade LEDs)

• 470 Ω resistor (four-band resistor: yellow-violet-brown; five-band resistor: yellow-violet-black-black; the last band will vary depending on the resistor’s tolerance)

• Breadboard

• 9 V battery clip

• 9 V battery

Chapter 2

The parts for “Project 2: A Simple Switch” are as follows:

• A switch

• A wire with alligator clips

• Two 1.5 V batteries

• Battery holder with wire leads

• LED

• 470 Ω resistor (four-band ...