1. Arduino with USB Cable(Any Arduino will work)(http://www.radioshack.com/Arduino
2. Bi colour LED (http://www.radioshack.com/led
3. Jumper wire(http://www.radioshack.com/Jumper Wire
As my Arduino have male headers, I have to use breadboard and jumper wire. For those who have Arduino with female headers can directly connect LED to thier respective slot.