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Home / Development Boards & Control Boards / For Arduino Expert Improved Mainboard ATmega328P Compatible with UNO Development Board R3 Module
Development Boards & Control Boards

Attributes

Brand -
Category Electronic Components / Maker DIY / Development Boards & Control Boards
Origin -
Microcontroller ATmega328P
Operating Voltage 5V
Input Voltage (Recommended) 7-12V
Input Voltage (Limits) 6-20V
Digital I/O Pins 14
PWM Channels 6
Analog Input Pins 6
DC Current per I/O Pin 20 mA
Flash Memory 32 KB
Clock Speed 16 MHz

5 reviews

A

Anonymous

Mar 07, 2026

Rating: 4/5

Good Value

Works well for the price. Just note that the USB cable is not included in the box.

A

Anonymous

Feb 18, 2026

Rating: 5/5

Works Great

Exactly what I needed for my robotics project. Pinout matches the official board perfectly.

A

Anonymous

Feb 09, 2026

Rating: 5/5

Excellent Quality

Pins are solid and soldering points are clear. Great for custom shield development.

A

Anonymous

Jan 23, 2026

Rating: 5/5

Fast Shipping

Board arrived quickly and functions perfectly. Using it for home automation sensors.

A

Anonymous

Jan 19, 2026

Rating: 5/5

Perfect Clone

Recognized immediately by my Mac. No driver issues encountered during setup.

5 FAQ

Q: Do I need to install specific drivers?

A: CH340 driver may be required for Windows systems. Mac and Linux usually recognize it automatically.

Q: Does this board have a 3.3V output pin?

A: Yes, there is a 3.3V pin available on the power header for external sensors.

Q: Will this fit on a standard breadboard?

A: Yes, standard pin spacing fits most full-size and half-size breadboards.

Q: Is there overcurrent protection on the USB port?

A: Yes, includes a polyfuse for USB overcurrent protection to safeguard your computer.

Q: Is this compatible with the official Arduino IDE?

A: Yes, works with standard Arduino IDE versions 1.8.x and 2.0.x.

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