Build Faster with the Uno R3 by Dfrduino Arduino Compatible

Uno R3 by Dfrduino Arduino Compatible DFRduino Uno R3 is a fully Arduino Uno compatible board for learning, prototyping, and general embedded projects.

It keeps the familiar Uno layout and adds DFRobot’s color-coded headers, which make sensor wiring easier to read at a glance.

Why you'll love it

• Uno R3 compatible: Easy match for many tutorials and shields
• ATmega328 in DIP package: Handy for replacement and custom work
• Color-coded headers: Faster wiring and easier port spotting
• USB and DC input: Simple power and programming options
• Good starter board: Strong fit for learning and general projects
• Gravity-ready: Easy plug-and-play wiring for fast setup

What you can build

This board is a good fit for learning, prototyping, robotics, and controller-based builds. Use it as the main brain for sensors, displays, wireless projects, and classroom or workshop demos.

Starter bundles

A solid starter setup includes a USB cable, breadboard, jumper wires, and a few DFRobot Gravity sensors or an LCD module for quick testing.

Recommended add-ons

Useful add-ons include sensors, displays, shields, breadboards, headers, and enclosures if you are building a complete prototype or classroom kit.

Technical specifications

Pinout & usage notes

If you are using Gravity connectors, align the plug correctly and avoid forcing the cable into the wrong header. Use a suitable external power source for motion parts when the controller alone cannot supply enough current.

DFRobot resources

Official product page: View on DFRobot
Wiki / documentation: Open DFRobot wiki
Wiki / docs

What’s in the box

1 × Uno R3 by Dfrduino Arduino Compatible

Frequently Asked Questions