Arduino Development for OSX and iOS (2015)

5. Debugging Arduino Logic

5.4 Demo 2: I2C Communication

This demo is about I2C communication, https://www.arduino.cc/en/Reference/Wire . In this demo, I use Arduino Uno so you can connect

· A4 (SDA) Arduino to channel 1 Ikalogic

· A5 (SCL) Arduino to channel 2 Ikalogic

· GND Arduino to channel GND Ikalogic

On Arduino board, we write a program. Write this program and upload to Arduino board.

#include <Wire.h>

byte val = 0;

void setup()

{

Wire.begin();

}

void loop()

{

Wire.beginTransmission(78);

Wire.write(val);

val++;

Wire.write(val);

val++;

Wire.write(val);

Wire.endTransmission();

val++;

if(val == 80)

{

val = 0;

}

delay(10);

}

On ScanaStudio, we do the following configuration on Configure panel

· Trigger type : No trigger

· Sampling rate: 100 KHz

· N. of Samples: 248000

After configured, you can click Start button to retrieve inputs from Arduino board.

A sample output can be seen in Figure below.

Source Code

You can download source code on http://www.aguskurniawan.net/book/arosx_ios.zip .

Contact

If you have question related to this book, please contact me at aguskur@hotmail.com . My blog: http://blog.aguskurniawan.net