Arduino Nano V3 (compatible) Atmega328P-AU and CH340

Description

Arduino-compatible Nano V3 Development Board (ATmega328P-AU)

The Nano V3 is a compact and versatile microcontroller board based on the Atmega328P-AU microcontroller running at 16 MHz. It features a Mini-USB port for programming and power and utilizes the WCH CH340G USB-UART chip for reliable driver compatibility across various operating systems. This version boasts enhanced voltage regulation compared to the standard Arduino Nano, offering improved stability for your projects.

Key Specifications:

• Microcontroller: Atmega328P-AU (16 MHz)
• Flash Memory: 32kB (2kB bootloader)
• SRAM: 2 KB
• EEPROM: 1 KB
• Digital I/O Pins: 14 (PWM capable)
• Analog Inputs: 8 (10-bit resolution)
• DC Operating Voltage: 6.2 – 15V
• DC Output Current (5V): 1A Max
• Communication Interfaces: Serial, SPI, I2C

Benefits:

• Compact Design: Ideal for projects with limited space constraints.
• Wide Operating Voltage: Accommodates various power supplies (6.2-15V).
• Enhanced Voltage Regulation: Improved stability compared to standard Arduino Nano.
• Driver Compatibility: Utilizes CH340G for reliable driver support across operating systems.
• Rich Feature Set: Supports analog/digital I/O, PWM, SPI, I2C communication protocols.

Pin Functions:

• Digital Pins (0-13): Configurable for input or output (5V logic). Each pin can provide/receive up to 40mA and has an internal pull-up resistor (disconnected by default).
• Serial (0 – RX, 1 – TX): Used for TTL serial communication.
• External Interrupts (2, 3): Configurable for interrupt triggers.
• PWM (3, 5, 6, 9, 10, 11): Provide 8-bit pulse width modulation output.
• SPI (10 – SS, 11 – MOSI, 12 – MISO, 13 – SCK): Enables Serial Peripheral Interface communication.
• I2C (A4 – SDA, A5 – SCL): Supports inter-integrated circuit communication.
• AREF: Analog reference voltage for analog inputs.

Additional Notes:

• Pre-programmed with Arduino bootloader for easy programming.
• I/O and ICSP headers included for expansion.
• Mini-USB cable required (sold separately).
• Screw terminal adapter and USB-C version also available.
• Download the required USB driver from the WCH official website for your operating system.