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Keyestudio Nano V3.0 Development Board Module with 328P Microcontroller & CH340 Chip Nano V3.0

The processor core of Keyestudio Nano CH340 is atmega328p-au. It is as same as the official Arduino Nano in addition to driver file and USB to serial chip (CH340G).

It also has a 14 digital input / output interfaces (6 of which can be used as PWM output), 8 analog input interfaces, 1 16MHz crystal oscillator, 1 mini USB port, 1 ICSP interface, and a reset button.

The ICSP interface is used to burn firmware to Atmega328P-Au. Since this chip we burn firmly in front of the factory, it is generally not available. When using the Mini USB cable, we can use the VIN GND (DC 7-12V) to power.

What’s more, you can burn the firmware for Atmega328P-Au through the built-in ICSP port. The firmware of this chip is burnt well before delivery, therefore, you don’t need to burn the firmware.
The power can be supplied through USB cable, port 5V , GND(DC 5V), as well as Vin GND (DC 7-12V).


  • Microcontroller: ATmega328P-AU
  • Operating Voltage: 5V
  • Input Voltage (recommended): DC 7-12V
  • Digital I/O Pins: 14 (D0-D13) (6 PWM output)
  • PWM Digital I/O Pins: 6 (D3, D5, D6, D9, D10, D11)
  • Analog Input Pins: 8 (A0-A7)
  • DC Current per I/O Pin: 40 mA
  • Flash Memory :32 KB of which 2 KB used by bootloader
  • SRAM: 2 KB
  • EEPROM: 1 KB
  • Clock Speed: 16 MHz


  • 1 x Keyestudio Nano V3.0 Development Board Module
  • 1 x USB Cable
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