Getting Started With Sensors : Measure the World With Electronics, Arduino, and Raspberry Pi, Paperback by Karvinen, Kimmo; Karvinen, Tero, ISBN 1449367089, ISBN-13 9781449367084, Brand New, Free shipping in the US

Features twenty sensor-based projects, from basic sensors to those that use either Arduino or Raspberry Pi, including a buzzer volume control, a photoresistor to measure light, and an adjustable infrared switch.