Arduino Nano V3.0 Development Board ATmega328P with CH340 USB Mini

Specifications:

• Microcontroller: ATmega328P (8-bit AVR)
  
• Operating Voltage: 5V
  
• Input Voltage (VIN): 7V to 12V
  
• USB Interface: CH340 (Mini-USB)
  
• Digital I/O Pins: 14 (6 provide PWM output)
  
• Analog Input Pins: 8 (10-bit resolution)
  
• Flash Memory: 32 KB (2 KB used by bootloader)
  
• SRAM: 2 KB
  
• EEPROM: 1 KB
  
• Clock Speed: 16 MHz
  
• Current per I/O Pin: 40 mA

Key Applications

• DIY Robotics: Small-scale line followers, hexapods, and robotic arms.
  
• Wearable Electronics: Lightweight controllers for LED suits or health monitors.
  
• Industrial Monitoring: Compact sensor hubs for machine health and uptime tracking.
  
• IoT Gateways: Local logic controllers paired with wireless communication modules.

Project Evolution

• Past Projects (Prerequisites): If you've mastered basic Arduino Uno tutorials but find the board too bulky for finished projects, the Nano V3 is your next step.
  
• Feature Upgrade: The Nano V3 unlocks Breadboard-Direct Integration, allowing you to build complex circuits without a mess of long jumper wires.
  
• Effort/Requirements: Beginner Friendly. Fully compatible with the Arduino IDE. Requires a Mini-USB data cable for programming.

Virtual Technician & Wiring

• ⚠️ Power Warning: When powering via the VIN pin, ensure the voltage is between 7V and 12V. Do NOT connect high voltage directly to the 5V or 3.3V pins.
  
• Pin Mapping Tip: Pins A6 and A7 are purely analog inputs; they cannot be used as digital pins (unlike A0-A5).
  
• Serial Communication: Ensure your baud rate matches your code (default is usually 9600 or 115200 for the CH340G).

Package includes:

1 x Arduino Nano V3.0 Development Board ATmega328P with CH340 USB Mini

Frequently Asked Questions (FAQ)

1. Does this board come with the bootloader pre-installed?
   Yes, all our Nano boards are pre-flashed with the Optiboot bootloader.
2. Which driver do I need for the USB interface?
   This board uses the CH340 driver, which is widely available for all OS versions.
3. Why is my Arduino IDE saying "Programmer Not Responding"? In the IDE, go to Tools > Processor and try selecting "ATmega328P (Old Bootloader)" if the standard setting fails.
4. Can I power this board with 12V?
   Yes, you can supply 12V to the VIN pin. The onboard regulator will step it down to 5V.
5. Is this board compatible with Arduino Uno shields?
   Not directly, as the pin layout is different. You must use jumper wires or a Nano shield adapter.
6. What is the difference between Mini-USB and Micro-USB versions?
   This version uses the robust Mini-USB port. The functionality of the ATmega328P remains identical.
7. How many PWM pins are available?
   There are 6 PWM pins (D3, D5, D6, D9, D10, D11).
8. Can I use this for 3.3V sensors?
   The I/O pins output 5V. To use 3.3V sensors, you should use a logic level shifter.
9. What is the max current the 5V pin can provide?
   Approximately 500mA when powered via USB, and up to 800mA when powered via VIN (depending on input voltage).
10. Does it have an onboard LED?
    Yes, there is a built-in LED connected to digital pin 13.
11. How do I reset the board?
    Press the small physical push-button located in the center of the board.
12. What is the flash memory size?
    It has 32KB of flash memory for storing your code.
13. Can I use this with the Raspberry Pi?
    Yes, you can connect it to a Pi via USB to act as a hardware controller.
14. Is it suitable for battery power?
    Yes, it is very efficient for battery-operated projects, especially if using the Sleep modes.
15. Does it fit in a standard breadboard?
    Yes, it is designed specifically to bridge the center gap of a breadboard.
16. What baud rate should I use for serial communication?
    9600 is standard, but the CH340G supports up to 2Mbps.
17. Can I use it to control high-voltage appliances?
    Yes, but only through a relay module or a MOSFET.
18. Are the headers soldered?
    This specific SKU comes with pre-soldered headers for your convenience.
19. What is the A6 and A7 pin capability?
    A6 and A7 are purely analog inputs; they cannot be used as digital I/O pins.
20. Can I use this for high-speed data acquisition?
    With a 16MHz clock, it is suitable for most real-time sensor monitoring tasks.