Readers will discover low cost display and sensor options for embedded system projects. Master 12C communications using Raspbian Linux in C++. Perform ADC and DAC experiments. Debounce buttons and switches using hardware and software solutions. Read rotary encoders for direction and step. Develop flywheel rotary encoder effects for ease of tuning. Construct a hardware interface to the Music Playing Daemon (MPD) with developed software. Discover how to add your own hardware keypad for remote combination lock applications. 

 What you'll learn:

Build simple, low cost input/output interfaces including rotary encoders 

Interface with 5-volt devices from a 3-volt Raspberry Pi system 

Conquer stuttering buttons and switches through hardware and software debouncing 

Apply analog to digital and digital to analog conversions on the Pi 

Read potentiometers (volume control) from the Pi 

Determine step, directions, and velocity of a rotary encoder 

Provide your own hardware devices for embedded applications

Perform remote interfacing using the I2 PCF8574 chip

Work with external CMOS devices like the 74HC595 (in C++)

 Who this book is for:

Students and hobbyists interested in building custom interfaces for their Raspberry Pis.

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