Beginning C for Arduino: Learn C Programming for the Arduino, Second Edition

© Jack Purdum 2015

Jack PurdumBeginning C for Arduino10.1007/978-1-4842-0940-0_13

13. Interfacing to the Outside World

Jack Purdum¹ 

(1)

Ecosoft, Inc., Cincinnati, Ohio, USA

 

The Serial Peripheral Interface (SPI)

An SPI Program

Interrupts and Interrupt Service Routines (ISR)

Interrupt Details

An External Interrupt Program

An Alternative Interrupt Program

Ultrasonic Sensor Program

A Programming Problem

My Solution

Conclusion

One of the first things most Arduino programmers want to do is “see” something that was produced by their program. Sure, the Serial monitor is okay for a while, but eventually you will want to display program output on something other than the Serial monitor. After all, dragging your PC around with you everywhere kind of limits what you can ...