Book Image

C Programming for Arduino

By : Julien Bayle
Book Image

C Programming for Arduino

By: Julien Bayle

Overview of this book

Physical computing allows us to build interactive physical systems by using software & hardware in order to sense and respond to the real world. C Programming for Arduino will show you how to harness powerful capabilities like sensing, feedbacks, programming and even wiring and developing your own autonomous systems. C Programming for Arduino contains everything you need to directly start wiring and coding your own electronic project. You'll learn C and how to code several types of firmware for your Arduino, and then move on to design small typical systems to understand how handling buttons, leds, LCD, network modules and much more. After running through C/C++ for the Arduino, you'll learn how to control your software by using real buttons and distance sensors and even discover how you can use your Arduino with the Processing framework so that they work in unison. Advanced coverage includes using Wi-Fi networks and batteries to make your Arduino-based hardware more mobile and flexible without wires. If you want to learn how to build your own electronic devices with powerful open-source technology, then this book is for you.
Table of Contents (21 chapters)
C Programming for Arduino
About the Author
About the Reviewers

Parsing and selecting data coming from Arduino

First, I want to introduce you to a helper firmware inspired by the Arduino2Max page on the Arduino website but updated and optimized a bit by me. It provides a way to read all the inputs on your Arduino, to pack all the data read, and to send them to our Max 6 patch through the [serial] object.

The readAll firmware

The following code is the firmware. You can find it in Chapter12/ReadAll:

int val = 0;

void setup()

void loop()
  // Check serial buffer for characters incoming
  if (Serial.available() > 0){         

    // If an 'r' is received then read all the pins
    if ( == 'r') {       

      // Read and send analog pins 0-5 values
      for (int pin= 0; pin<=5; pin++){      
        val = analogRead(pin);
        sendValue (val);

      // Read and send digital pins 2-13 values
      for (int pin= 2; pin<=13; pin++){     
        val = digitalRead(pin);