This book equips the reader with skills necessary to design and build custom hardware interfaces to be used by the Raspberry Pi. A thorough chapter on interfacing 5-volt systems from a 3.3-volt Raspberry Pi system equips the reader for additional peripheral options. Ready to go C++ programs involving I2C and SPI peripherals are supplies. Explores ADC, DAC, rotary encoders, and GPIO.
Readers will discover low cost display and sensor options for embedded system projects. Master I2C and SPI communications from Raspbian Linux in C++. Perform ADC and DAC experiments on their Pis. Debounce hardware and software buttons/switches. Read rotary encoders for direction and step in C++. Implement flywheel rotary encoder effects for use in tuning GnuRadio. And hack GnuRadio software so it will respond to their custom hardware controls.
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 on the Pi
- Modify software to integrate hardware devices
- Work with I2C and SPI devices (in C++)
Who this book is for:Students and hobbyists interested in building custom interfaces for their Raspberry Pis.
