My Arduino journey starts here

So what is Arduino?

Arduino is a micro-controller board can do and sense more than your desktop computer.  The possibility is endless.  

Due to the hype of IoT, I will to learn more about the application rather than reading the news by using the "learning by doing" method.  Hence I decided to start some projects using Arduino 'cause it is cheap so as low risk even if I screw it somehow...

The video recorded a simple traffic light demonstrated built by 3 LEDs and an Arduino UNO chip that I brought from TaoBao and they are very cheap that the total was less $100 HKD.  So what do you think?

BTW, below is the book that I am currently reading.  It's very easy to follow that I highly recommend this book for those who just start to learn Arduino.