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zhengbingquant_Nano_V1

YouTube link: https://youtu.be/o9jtSHh7a54?si=MYGmc70yYvMOVar3

哔哩哔哩链接: https://www.bilibili.com/video/BV1T5aczyE8L/?vd_source=7e806c69a8d91200bb913d5da4bf505b

Project team member: zhengbingquant
Category: Microcontroller Board / Arduino-Compatible

Overview

The zhengbingquant_Nano_V1 is a DIY Arduino Nano clone, redesigned with a USB-C connector for modern compatibility. Built around the ATmega328P and CH340C USB-to-Serial, it is fully Arduino Nano compatible and perfect for beginners learning PCB design and microcontrollers.

The board includes 5V & 3.3V regulators, a VIN input (7–12V), and a built-in LED on pin 13. Most components are 0806 SMD, making soldering accessible for beginners. Standard male pin headers ensure compatibility with Arduino shields and breadboards.

This is my first self-designed PCB project as a high school student, made to explore electronics and PCB design. I hope to apply these skills later in my mechanical engineering studies.

Features

• • Microcontroller: ATmega328P

    • 8-bit AVR RISC architecture

    • Clock Speed: 16 MHz

    • Flash Memory: 32 KB (2 KB used by bootloader)

    • SRAM: 2 KB

    • EEPROM: 1 KB

    • 23 I/O pins (14 digital, 6 analog, PWM support)

  • USB-to-Serial: CH340C (USB-C connector)

  • Voltage Regulators: 5V & 3.3V onboard

  • Power Input: VIN 7–12V recommended

  • Pin Headers: Standard Arduino Nano male pin headers (breadboard-friendly)

  • Built-in LED: Pin 13

  • Package Sizes: Mostly 0806 SMD → easier soldering for beginners

  • Form Factor: Compatible with Arduino Nano shields & accessories

Getting Started with zhengbingquant_Nano_V1

Step 1: Solder Your Board

Tips for beginners:

• Start with SMD components (resistors, capacitors, ICs) — they are mostly 0806 for easy handling.

• Use the SMD soldering assistant tool in EasyEDA Pro to help place and align components accurately.

• Apply solder paste or thin solder wire carefully.

• After SMDs are done, solder through-hole components like male pin headers.

• Make sure polarized components (LEDs, diodes, ICs) are oriented correctly.

Step 2: Burn the Bootloader

Why: The board is new and cannot run Arduino sketches until the bootloader is installed.

Requirements: Arduino UNO, USB cable, Arduino IDE

2.1 Open ISP Example

• In Arduino IDE, go to File → Examples → 11.ArduinoISP → ArduinoISP

2.2 Connect UNO to Nano

2.3 Upload “Arduino as ISP” to UNO

• Select Arduino UNO and the correct COM port.

• Compile and upload the ArduinoISP sketch.

2.4 Burn Bootloader to Nano

• Keep UNO connected to Nano and the computer.

• In Arduino IDE:

  • Board → Arduino Nano

  • Processor → ATmega328p

• Click Burn Bootloader.

• When the console shows "avrdude done", the bootloader is successfully installed.

Step 3: Test Your Board

1. Open the Blink example in Arduino IDE.

2. Upload it to your Nano.

3. The built-in LED on pin 13 should blink.

Step 4: You’re Ready!

Your zhengbingquant_Nano_V1 is now fully functional. With USB-C and Arduino compatibility, it’s ready for your experiments, learning, and projects.

Purpose:
This project serves as a stepping stone for beginners to dive into PCB design and microcontroller programming. It bridges the gap between learning electronics and practical application, while also being a foundation for future mechanical engineering projects that integrate electronics.