Tutorial

Requirements



Hardware

DFRduino UNO x1

IIC to GPIO Shield V2.0 x1

Button module

LED module



Software

Arduino IDE V1.6.5 Click to Download Arduino IDE from Arduino®

Connection Diagram

Sample Code

In this section, we will use an Arduino library written by nicoverduin

Github Library. About Library installation.

1 #if defined(ARDUINO) && ARDUINO >= 100

2 #include "Arduino.h"

3 #else

4