UNO R3 ATmegaCH340 AVR Module Board For Arduino Without USB Cable Description: UNO R3 board is 100% compatible with original Arduino, now it has perfect quality and performance . Arduino is an open-source physical computing platform based on a simple i/o board and a development environment that implements theProcessing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP). The open-source IDE can be downloaded for free (currently for Mac OS X, Windows, and Linux). This is the new Tosduino Uno R3. Note: Main Changes from the older version: Add two rows of the holes for the pins. So it can be connected with normal Dubond line. Add 3 rows of the holes for wiring. Change the in-line package of ATMEGA328P to flat package. CH340G Replace ATmega16U2 Plug UNO development board, the driver will be automatically installed. select the board UNO inside the die. Select the COM port, this can be in my computer queries, just inside your uno port development board You'd better to choose arduino own routine procedures, burn into the board Note: This version does not includes USB cable Package content 1* UNO R3 module