SainSmart UNO R3 Board with SMD ATmega328P for Arduino
SainSmart UNO R3 is More Powerful than the original UNO R3, and now it has perfect quality and much more performance! In addition, the new Uno R3 now uses an ATMega16U2 instead of the ATMega8U2 chip, which allows for faster transfer rates and the ability to have the UNO show up as a keyboard, mouse, joystick, etc. No drivers needed for Linux or Mac (inf file for Windows is needed).Features* 3.3V/5V Supply Voltage and IO Voltage can be switched at the same time.* More 3.3V modules supported, such as Xbee module, Bluetooth module, RF module, GPRS module, GPS module, LCD5110 Backlight.* Controller uses SMD MEGA328P-AU chip. Add A6/A7 port.*Parameter: UNO R3*5V Electric current: 500MA*3.3V Electric current: 50MA*Input Voltage: 7-12VDescription*Digital I / O digital input / output of 0 to 13.*Analog I /O analog input / output of 0 to 7.*Support ISP downloads function.*Input voltage: no external power supply when connected to the computer USB, external power supply 5V ~ 9V DC voltage input.*Output voltage: 5V DC voltage output and 3.3V DC voltage output.Sainsmart UNO R3 can work at not only 5 voltage but also 3.3 voltage by switching on the button. At this time, IO port is 3.3V and it can work with 3.3V Level module. It has much more extensible Pins and another 2 Analog I/O Pins.Note:SainSmart Uno R3 requires the Arduino drivers folder in order to install properly on some computers. We have tested and confirmed that the UNO R3 can be programmed in older versions of the IDE. However, you need to have Arduino installed on that machine when using the R3 on a new computer at the first time.Documentation for the board:https://s3-ap-northeast-1.amazonaws.com/sain-amzn/20/20-011-937/SainSmart+UNO+R3.rar