"Equipped with his five senses, man explores the universe around him and calls the adventure science.
- Edwin Powell Hubble
A sensor is a special kind of electronic device that senses external stimuli such as heat, humidity, moisture, and light. Sensors are one of the integral building blocks of smart devices and embedded systems. One might have seen automatic doors that slide open once somebody goes near the door. These automatic systems are usually based on sensors, microcontrollers, and embedded software. In this chapter, you will learn the fundamental technique of interfacing and the use of sensors in general, with the Arduino platform. After mastering the basic steps, you will be able to work with more sensors on your own.
The following topics are covered in this chapter:
- Introduction to sensors
- Using elementary sensors
- Using integrated...
