Description Nano V3 CH340 ATmega328P Development Board The Nano V3 CH340 ATmega328P Board is a compact and reliable microcontroller development board designed for makers, engineers, educators, and embedded system developers. Based on the ATmega328P microcontroller and CH340 USB-to-Serial converter, it delivers full compatibility with the Arduino IDE while maintaining a small footprint suitable for breadboards and space-constrained applications. This product is offered in three USB connector options—Type-C, Mini USB, and Micro USB—allowing you to select the version that best matches your existing cables and development environment. All versions are supplied without pre-soldered headers, providing greater flexibility for custom installations and PCB integration. Choose the USB Connector That Fits Your Project All three versions share the same hardware specifications and functionality. The only difference is the USB connector. Version USB Connector Headers Option 1 USB Type-C Unsoldered Option 2 Mini USB Unsoldered Option 3 Micro USB Unsoldered Whether you’re upgrading an existing design or starting a new prototype, each version offers identical performance and software compatibility. Why Choose This Development Board? Built around the proven ATmega328P architecture, this CH340 Nano board offers stable performance for both beginners and professionals. Key Features ATmega328P microcontroller CH340 USB-to-Serial interface Type-C, Mini USB, or Micro USB options Unsoldered pin headers Fully compatible with Arduino IDE Breadboard-friendly design Compact 45 × 18 mm form factor USB-powered or external supply ISP programming support Low power consumption Open-source hardware ecosystem Technical Specifications Parameter Specification MCU ATmega328P USB Chip CH340 Operating Voltage 5V Input Voltage 7–12V (Recommended) Digital I/O Pins 14 PWM Channels 6 Analog Inputs 8 Flash Memory 32KB SRAM 2KB EEPROM 1KB Clock Speed 16MHz USB Interface Type-C / Mini USB / Micro USB Header Type Unsoldered Board Dimensions Approx. 45 × 18 mm Designed for a Wide Range of Projects This nano V3  board is suitable for: Arduino programming Robotics IoT devices Smart home automation Sensor data acquisition LED lighting control Motor control Educational electronics Embedded system development Rapid prototyping DIY electronics Industrial testing Its small size makes it especially useful where larger development boards are impractical. Compatible with Hundreds of Arduino Modules One of the biggest advantages of this CH340 nano board is its extensive hardware compatibility. For sound-enabled projects, it works seamlessly with our DFPlayer Mini MP3 Module, making it easy to add voice prompts or music playback to your design. If you’re developing voice-controlled or sound-reactive applications, pairing it with the MAX4466 Microphone Module provides clean analog audio input for signal processing and voice detection. The board also integrates effortlessly with displays, relays, sensors, servos, wireless communication modules, and countless other Arduino-compatible accessories.   Nano V3 CH340 ATmega328P Board Easy Programming with Arduino IDE Programming the board is straightforward using the Arduino IDE. Simply install the CH340 USB driver (if required by your operating system), connect the board using your preferred USB cable, select Arduino Nano as the board type, choose the correct processor version if necessary, and upload your sketch. For users new to Arduino, the official Arduino getting-started guide provides a clear overview of board installation, software setup, and first-time programming: https://www.youtube.com/watch?v=6OR7STWnIaE Compact Design for Professional Integration The narrow PCB layout fits directly into standard solderless breadboards while leaving both sides accessible for jumper wires and expansion modules. Because this version ships without soldered headers, it is especially suitable for: Custom PCB assembly Low-profile enclosures Permanent installations Educational soldering practice OEM manufacturing Package Includes 1 × Nano V3 CH340 ATmega328P Development Board USB connector option selected: Type-C Mini USB Micro USB Unsoldered pin headers FAQ Q1: What is the difference between the Type-C, Mini USB, and Micro USB versions? The only difference is the USB connector. All three versions use the same ATmega328P microcontroller, CH340 USB interface, pin layout, operating voltage, and functionality. You can simply choose the connector that best matches your available cables or existing projects. Q2: Does this board work with the Arduino IDE? Yes. The board is fully compatible with the Arduino IDE. After installing the appropriate CH340 USB driver (if required), you can program it just like a standard Arduino Nano using the ATmega328P processor profile. Q3: Are the pin headers pre-soldered? No. This product includes unsoldered headers, allowing you to install straight or right-angle headers—or solder the board directly into your own PCB—depending on your project’s requirements.