Arduino UNO R3 CH340G MEGA328P 16MHz Development Board + USB

$24.17 $29.55

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Arduino UNO R3 Development Board with CH340G & MEGA328P SMD Chip

Take your electronics projects to the next level with this complete Arduino UNO R3 Development Board set. Featuring the reliable CH340G USB-to-serial chip and the powerful ATMEGA328P SMD microcontroller running at 16MHz, this board is an ideal platform for hobbyists, students, engineers, and makers of all experience levels. Whether you're building your first circuit or prototyping a complex embedded system, this board delivers stable performance and broad software compatibility right out of the box.

Made in Mainland China.

Key Features

Microcontroller: ATMEGA328P (SMD package) — compact and reliable
Clock Speed: 16MHz crystal oscillator for precise timing
USB Interface Chip: CH340G for easy plug-and-play USB connectivity on Windows, Mac, and Linux
USB Cable Included: Ready to connect and program straight away — no extra accessories needed
Digital I/O Pins: 14 digital input/output pins (6 capable of PWM output)
Analog Input Pins: 6 analog input pins
Flash Memory: 32KB (ATMEGA328P) — 0.5KB used by bootloader
SRAM: 2KB | EEPROM: 1KB
Operating Voltage: 5V | Input Voltage: 7–12V (recommended)
Condition: Brand new, individually packaged (SMD package)
Compatible with the Arduino IDE and a wide range of shields and modules

What's in the Box?

1× R3 CH340G + MEGA328P SMD Development Board
1× USB Cable

Who Is This For?

This development board is perfect for students learning electronics, makers building DIY automation projects, robotics enthusiasts, and professionals prototyping embedded systems. Its broad compatibility with the Arduino ecosystem means you have access to thousands of libraries, tutorials, and community resources from day one.

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Frequently Asked Questions

Q: Is this Arduino UNO R3 board compatible with the official Arduino IDE?

A: Yes! This R3 development board with the ATMEGA328P microcontroller is fully compatible with the Arduino IDE. Simply install the CH340G driver (available free online for Windows, Mac, and Linux), select "Arduino UNO" as your board in the IDE, and you're ready to upload sketches via the included USB cable.

Q: Why does this board use the CH340G chip instead of the ATMEG16U2?

A: The CH340G is a widely used, cost-effective USB-to-serial conversion chip that provides reliable USB communication for programming and serial monitoring. It works seamlessly with the Arduino IDE once the appropriate driver is installed, making it a popular choice in compatible and derivative R3 boards.

Q: Does the USB cable come included in this set?

A: Yes — this listing is a complete "One Set" that includes both the R3 CH340G + MEGA328P SMD development board and a USB cable, so you can start programming right away without needing any additional accessories.

Q: What kinds of projects can I build with this development board?

A: The possibilities are nearly endless! Common projects include LED controllers, sensor data loggers, servo motor controllers, home automation systems, robotic arms, LCD display interfaces, and much more. Its compatibility with the Arduino shield ecosystem means you can easily expand its capabilities with add-on modules.