[Discontinued] SainSmart UNO R3 Improved Version +SainSmart Keypad Shield 1602 LCD Module V3 Display for Arduino

Feature:  SainSmart UNO R3 Improved Version :   SainSmart UNO R3 board is our new 2013 improved version product! It's 100% compatible with original UNO R3, now it has perfect quality and much more performance , we believe it will provide exciting use experience to you!       This is the new SainSmart Uno R3. In addition to all the features of the previous board, the Uno R3 now uses an ATMega16U2 instead of the ATMega8U2 chip. This allows for faster transfer rates, no drivers needed for Linux or Mac (inf file for Windows is needed), and the ability to have the Uno show up as a keyboard, mouse, joystick, etc.    Note: The SainSmart Uno R3 requires the Arduino drivers folder in order to install properly on some computers. We have tested and confirmed that the R3 can be programmed in older versions of the IDE. However, the first time using the R3 on a new computer, you will need to have Arduino installed on that machine.    1.       3.3V/5V Supply Voltage and IO Voltage can be switched at