UNO R3 Development Board (CH340 Improved Version) — Board + Micro USB Cable

• Enhanced Windows Compatibility: Features the CH340 USB chip, specifically designed to resolve driver installation issues found on older or unofficial Windows 7 and 8 systems.

• Universal Micro USB Interface: Replaces the bulky Type-B port with a standard Micro USB port, allowing you to use common smartphone charging cables for programming and power.

• High-Performance MCU: Powered by the ATmega328P-AU (QFP package), maintaining full functional compatibility with the original UNO R3 architecture.

• Added Pin Header Flexibility: Includes additional pin header expansion points alongside standard female headers, making it easier to connect DuPont cables for complex prototyping.

• Cost-Effective Design: Replaces the expensive 16u2 chip to offer a more budget-friendly solution without sacrificing performance or stability.

• Plug-and-Play Ready: Fully compatible with the Arduino IDE, support for a wide range of shields, sensors, and expansion modules.

• The Smarter Choice for Makers and Students The UNO R3 Improved Version is an optimized take on the world's most popular development board. Designed with feedback from the global maker community, this board focuses on reliability and ease of use. Whether you are a beginner starting your first "Blink" sketch or a professional prototyping a new device, this board provides the stability you need.

• No More Driver Headaches Many users struggle with USB driver recognition on various operating systems. This version uses the reliable CH340G serial-to-USB converter, ensuring that your computer recognizes the board instantly after a simple driver installation.

• Maximum Convenience By switching to a Micro USB interface, we've removed the need for specialized "printer cables." You can now power and program your board using the same cables used for most power banks and electronics, saving you space and extra costs.

• Microcontroller: ATmega328P-AU

• USB Chip: CH340G

• Operating Voltage: 5V

• Input Voltage (Recommended): 7V - 12V

• Digital I/O Pins: 14 (of which 6 provide PWM output)

• Analog Input Pins: 6

• Flash Memory: 32 KB (ATmega328P)

• Clock Speed: 16 MHz

• USB Port Type: Micro USB

Quick Setup Guide

• Driver: Download and install the CH340 USB-to-Serial driver.

• Connect: Plug the board into your PC using a Micro USB cable; the driver will install automatically.

• IDE Setup: Open the Arduino IDE, select Board: "Arduino Uno".

• Port: Select the correct COM Port (viewable in your Computer's Device Manager).

• Upload: Choose a built-in example (like "Blink") and click upload to start your project.

What's in the box
1 x UNO R3 Improved Development Board (ATmega328P + CH340)
1 x USB-A Cable 30cm