Nano 3.0 ATmega328 Development Board with USB Cable – Arduino Compatible User’s Guide

Product Overview

• Microcontroller: ATmega328P (16 MHz clock speed)
• Operating Voltage: 5 V
• Flash Memory: 32 KB (2 KB used by bootloader)
• SRAM: 2 KB
• EEPROM: 1 KB
• Digital I/O Pins: 22 (14 standard + 8 analog usable as digital)
• Analog Input Pins: 8 (A0–A7)
• PWM Outputs: 6 (D3, D5, D6, D9, D10, D11)
• USB Interface: Mini‑USB (for programming and power)
• Power Options:
  • Via USB (5 V regulated)
  • VIN pin (6–20 V unregulated)
  • 5 V pin (regulated external supply)

Pinout Diagrams

Here is a clear pinout reference for your Nano 3.0 board:

• Detailed Nano v3.6 Pinout (TX/RX, I²C, SPI, PWM)

Setup Instructions

1. Install Arduino IDE
   • Download from Arduino.cc.
   • Select Tools → Board → Arduino Nano.
   • Choose Processor → ATmega328P (Old Bootloader) if uploads fail.
2. Connect Board
   • Use the included Mini‑USB cable.
   • Install drivers if required (CH340 or FTDI depending on clone).
3. Powering Options
   • USB (default, 5 V regulated).
   • VIN pin for external supply (7–12 V recommended).
   • 5 V pin for regulated external supply.

Example Code

Blink onboard LED (D13):

void setup() {
  pinMode(13, OUTPUT);
}

void loop() {
  digitalWrite(13, HIGH);
  delay(1000);
  digitalWrite(13, LOW);
  delay(1000);
}

Upload via Arduino IDE → Upload button.

Key Pin Functions

Risks & Best Practices

• Voltage caution: Operates at 5 V logic; avoid direct 12 V on GPIOs.
• Current limit: Max 40 mA per I/O pin.
• Bootloader issues: Some clones require “Old Bootloader” setting.
• Breadboard use: Nano is breadboard‑friendly but ensure firm connections.

Applications

• Robotics (motor control via PWM)
• IoT sensors (I²C/SPI communication)
• Educational kits for beginners
• Environmental monitoring projects
• Prototyping with breadboard circuits