CH340G Replace FT232RL Micro-controller ATmega328P Using Atmega328P-AU MCU, Support ISP download; Support USB download and Power. Can be used in 8, 8.1, 10 systems Increased download speed and increased stability in win7 win8. Instructions: 1. Download the IDE 2. Download USB chip driver 3. Plug in the NANO development board, the driver will be installed automatically 4. Select the board NANO in the die 5. Select the COM port, this can be checked in my computer, just the port in your for development board Technical parameters of Nano: 1. 12 digital input / output ports D2-D13. 2. Eight analog input ports A0-A7. 3. 1 pair TTL level serial port transceiver port RX / TX. 4. Six PWM ports, D3, D5, D6, D9, D10, D11. 5. Using Atmega328P-AU microcontroller. 6. Support external 3.3V-12V DC power supply. 7. Support lithium battery and 9V battery power supply. colour: blue Material: PCB Package Contents: 3 * for Nano (CH340G) development board 3 * MINI interface, USB data cable (30CM) Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.