Arduino Nano V3 ATmega328 CH340 Soldered (Compatible)

Features:

• Microcontroller: ATmega328P (32KB Flash, 2KB SRAM, 1KB EEPROM)
• USB-to-Serial Chip: CH340
• Digital I/O Pins: 14 (6 with PWM support)
• Analog Inputs: 8
• Clock Speed: 16 MHz Quartz Crystal
• Compatibility: Fully compatible with Arduino IDE
• Breadboard-Friendly: Compact size, fits standard breadboards
• Power Consumption: Energy-efficient design
• Onboard LEDs: Built-in status/debug LED on Pin 13
• Open-Source: Hardware design is open-source
• USB Programming: Program and power via USB
• Expandable: Supports various shields and modules

Principle of Work:

This board operates via the ATmega328P microcontroller, executing uploaded code and managing I/O tasks. The CH340 chip enables communication between the board and a computer through USB, allowing you to upload sketches and interact via the Serial Monitor.

Workflow:

1. Install CH340 USB driver if needed: Download here
2. Connect board via USB
3. Select board type: "Arduino Nano" in Arduino IDE
4. Select processor: "ATmega328P"
5. Select correct COM port
6. Upload code via Arduino IDE

Pinout of the Board:

Applications:

• DIY electronics and home automation
• Robotics (e.g., line-followers, RC vehicles)
• Sensor data collection and environmental monitoring
• Wearables (e.g., smartwatches, fitness trackers)
• IoT systems with internet connectivity
• Educational electronics and STEM teaching
• Data logging using SD cards or Serial Monitor
• Art installations and interactive displays
• Automotive diagnostics or small-scale controls
• Wireless communication projects using Bluetooth/Wi-Fi

Sample Code:

void setup() {
  pinMode(LED_BUILTIN, OUTPUT); // Set LED pin as output
  Serial.begin(9600); // Start serial communication
}

void loop() {
  if (Serial.available()) {
    char command = Serial.read();
    if (command == '1') {
      digitalWrite(LED_BUILTIN, HIGH);
      Serial.println("LED turned on");
    } else if (command == '0') {
      digitalWrite(LED_BUILTIN, LOW);
      Serial.println("LED turned off");
    }
  }
}

Technical Specifications:

• Microcontroller: ATmega328P
• Clock Speed: 16 MHz
• Operating Voltage: 5V
• Input Voltage (Recommended): 7–12V
• Input Voltage (Limits): 6–20V
• Digital I/O Pins: 14 (6 PWM)
• Analog Inputs: 8
• Flash Memory: 32 KB (2 KB used by bootloader)
• SRAM: 2 KB
• EEPROM: 1 KB
• DC Current per I/O Pin: 20 mA
• DC Current for 3.3V Pin: 50 mA
• USB to Serial: CH340G

Resources:

• Arduino IDE Download
• CH340 Driver Download

Comparison: Nano v3 vs Pro Mini