Arduino Nano V3.0 Compatible - Compact ATmega328P Microcontroller Board with CH340G

Product Description The Arduino Nano V3.0 is a small, complete, and breadboard-friendly development board based on the ATmega328P. It offers nearly the same functionality as the Arduino Uno but in a significantly smaller footprint, making it the go-to choice for space-constrained projects and permanent installations. This version utilizes the CH340G USB-to-Serial converter for reliable programming via Mini-USB. Unlike the Uno, the Nano provides two additional analog input pins (A6 and A7), offering more flexibility for sensor-heavy applications. Its compact dual-inline package (DIP) design allows it to plug directly into a breadboard or a 30-pin IC socket for seamless prototyping.

Key Features

• Ultra-Compact Design: Measuring only 45mm x 18mm, it fits easily into small enclosures, wearable tech, and compact robot chassis.

• Breadboard Ready: Features 0.1" pitch headers that allow the board to be mounted directly onto a breadboard for stable circuit testing.

• Extra Analog Pins: Includes 8 analog inputs (A0-A7), providing two more channels than the standard Arduino Uno R3.

• Flexible Power Supply: Can be powered via the Mini-USB port, a regulated 5V supply, or an unregulated 6-12V supply through the Vin pin.

• High Compatibility: Fully compatible with the Arduino IDE; simply select "Arduino Nano" and the "ATmega328P (Old Bootloader)" processor.

Technical Details

• Core Processor: 8-bit AVR architecture providing 1MIPS per MHz throughput, balancing power efficiency and processing speed.

• Mini-USB Interface: Robust Mini-USB port for programming and serial monitoring (requires CH340 drivers on most systems).

• PWM Channels: 6 digital pins (D3, D5, D6, D9, D10, D11) support 8-bit Pulse Width Modulation for motor and LED control.

• Communication Buses: Dedicated hardware support for I2C (SDA/SCL), SPI (MISO/MOSI/SCK), and UART (TX/RX) protocols.

• Onboard Regulation: Features the LM1117-5.0V and 3.3V LDO regulators to provide stable power to internal logic and external sensors.

• Reset Mechanism: Includes a top-mounted tactile reset button and support for auto-reset via software from a connected PC.

• Status LEDs: Four integrated SMD LEDs for Power (POW), User Program (L - Pin 13), and Serial Communication (TX/RX).

• Flash Storage: 32KB of flash memory (2KB used by bootloader) for storing compiled sketches and constant data.

• SRAM Capacity: 2KB of internal SRAM for dynamic variable storage and stack operations.

• EEPROM Access: 1KB of non-volatile memory for saving configuration settings that persist after power loss.

• Logic Level: Operates on 5V logic, ensuring direct compatibility with standard digital sensors and 5V relay modules.

• ISP Header: Standard 6-pin ICSP header for direct programming using an external AVR ISP programmer.

• Pin Labeling: Clear silk-screened labels on the PCB surface for easy identification of digital and analog pins.

• Soldering Versatility: Available with pre-soldered headers or loose pins for custom integration into narrow project spaces.

• Oscillator Precision: 16MHz crystal oscillator provides accurate timing for time-sensitive tasks and serial baud rates.