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Home / Development Boards & Control Boards / Compatible Arduino UNO R3 Improved Development Board CH340 Driver ATmega328P Microcontroller Zejie
Development Boards & Control Boards

Attributes

Brand -
Category Electronic Components / Maker DIY / Development Boards & Control Boards
Origin -
Brand Name Zejie
Model Number UNO R3 Enhanced
Microcontroller ATmega328P
USB Interface CH340 Driver
Operating Voltage 5V DC
Input Voltage (Recommended) 7-12V DC
Digital I/O Pins 14
Analog Input Pins 6
Clock Speed 16 MHz
PCB Dimensions 68mm x 53mm

5 reviews

A

Anonymous

Mar 22, 2026

Rating: 5/5

Excellent Board

Works flawlessly with the Arduino IDE. I had no issues uploading my first sketch.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Fast Shipping

Arrived well packaged and on time. The board looks sturdy and well made.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Great Value

Much cheaper than the original with same performance. Perfect for learning electronics.

A

Anonymous

Mar 03, 2026

Rating: 5/5

Highly Recommend

Perfect for my robotics projects. All pins respond correctly to commands.

A

Anonymous

Feb 13, 2026

Rating: 4/5

Good Product

Driver installation required some effort on Windows but works fine now.

5 FAQ

Q: Is the bootloader pre-installed?

A: Yes, ready to upload sketches immediately.

Q: Does it come with a USB cable?

A: No, please purchase a USB Type-B cable separately.

Q: Are the pins labeled clearly?

A: Yes, silk screen labels are clear and accurate.

Q: Can I power it with 9V battery?

A: Yes, via the barrel jack or VIN pin.

Q: Is it compatible with Windows 10?

A: Yes, CH340 drivers support Windows 10 and 11.

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