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Home / Development Boards & Control Boards / ATmega328P UNO R3 Development Board_CH340 Improved Version MCU Microcontroller Development Module
Development Boards & Control Boards

Attributes

Brand -
Category Electronic Components / Maker DIY / Development Boards & Control Boards
Origin -
Microcontroller ATmega328P
USB Interface Chip CH340
Operating Voltage 5V
Input Voltage (Recommended) 7-12V
Digital I/O Pins 14
Analog Input Pins 6
Flash Memory 32 KB
SRAM 2 KB
EEPROM 1 KB
Clock Speed 16 MHz

5 reviews

A

Anonymous

Mar 29, 2026

Rating: 5/5

Fast shipping

Arrived well packaged in anti-static bag. Ready to use out of the box.

A

Anonymous

Mar 15, 2026

Rating: 5/5

Compatible with shields

Fits all my standard Arduino shields perfectly. Using it for a home automation project.

A

Anonymous

Mar 12, 2026

Rating: 5/5

Great value

Much cheaper than the official board but performs the same for my projects. Highly recommended.

A

Anonymous

Feb 20, 2026

Rating: 4/5

Good board, minor issue

Functionality is great. One of the header pins was slightly bent upon arrival but I straightened it easily.

A

Anonymous

Feb 07, 2026

Rating: 5/5

Perfect for learning

This board works flawlessly with the Arduino IDE. The CH340 driver was easy to install on Windows 10.

5 FAQ

Q: Where can I find the CH340 drivers?

A: You can download them from the manufacturer's website or search for CH340 drivers online.

Q: Is this compatible with Mac OS?

A: Yes, it is compatible. You will need to install the CH340 USB driver for macOS.

Q: Does it work with official Arduino shields?

A: Yes, the form factor is standard UNO R3, so it is compatible with most shields.

Q: Can I power this board via the USB port?

A: Yes, the board can be powered via the USB connection which provides 5V.

Q: What is the maximum current per I/O pin?

A: The maximum current per I/O pin is 40mA. Do not exceed this to avoid damage.

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