ARDUINO UNO R3 development board ch340 + free support
This is the lasest version of Arduino Uno. There is a usb cable inside the package for seperator computer connection.
Uno is a microcontroller board based on ch340 . There are 16 digital I/O pins (6 of them are PWM out), 6 analog input pins, a 16 MHz crystal oscilator, an USB socket, a power socket, an ICSP connector and reset button on the board. There are the all essential parts on the board for microcontroller operations. The board can easily be connected to the computer via usb or can be used with an external adapter of battery.