Java on the Raspberry Pi: Develop Java Programs to Control Devices for Robotics, IoT, and Beyond

© The Author(s), under exclusive license to APress Media, LLC, part of Springer Nature 2021

G. FlurryJava on the Raspberry Pihttps://doi.org/10.1007/978-1-4842-7264-0_12

12. An Analog-to-Digital Converter

Greg Flurry¹  

(1)

Austin, TX, USA

 

The Raspberry Pi, unlike some of its competitors, does not offer true analog I/O. Analog input is particularly interesting, as IoT projects often need to monitor things that produce analog signals. In this chapter, we’ll produce a device library for an analog-to-digital converter, or ADC. For this book, I chose the Microchip MCP3008, a member of an extensive family of ADCs manufactured by the company, for a few reasons:

• It is inexpensive and easy to acquire.

• It is quite easy to use (once you understand it).

• It uses ...