The DFRduino UNO V3.0 from DFRobot is a compact physical computing board ideal for both academic use and development. It is a microcontroller board fully compatible with Arduino UNO R3 and the Arduino IDE open-source development environment, which supports the Processing / Wiring language.
You can use it to build stand-alone interactive objects or connect it to software on your computer (such as Flash, Processing, MaxMSP). The open-source IDE can be downloaded for free and supports Mac OS X, Windows, and Linux.
Board Features
This board uses the ATmega16U2 as a USB-to-serial converter and retains the DIP package AVR Chip (ATmega328), allowing for easy reprogramming or replacement.
A key feature of this board is the use of color-coded headers for different I/O port types:
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Red for Power Section
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Blue for Analog I/O
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Green for Digital I/O
These colors match DFRobot’s sensor cables, making it easier to identify where to connect sensors and distinguish between Analog and Digital pins.
Technical Specifications
| Parameter | Description |
|---|---|
| Microcontroller | ATmega328 (DIP package) |
| Operating Voltage | 5V |
| Input Voltage | 7V–12V DC (recommended) |
| Output Voltage | 5V DC and 3.3V DC |
| Clock Speed | 16 MHz |
| Bootloader | Arduino Uno |
| Digital I/O Pins | 14 (6 provide PWM output) |
| Analog Input Pins | 6 |
| DC Current per I/O Pin | 40 mA |
| DC Current for 3.3V Pin | 50 mA |
| Flash Memory | 32 KB (ATmega328) |
| SRAM | 2 KB (ATmega328) |
| EEPROM | 1 KB (ATmega328) |
| Dimensions | 75 x 54 x 15 mm |
| Weight | 45 g |
| USB Connection | A-B USB cable |
| IDE Support | Arduino IDE 1.0 and above |
| Environment Friendly | RoHS Compliant |
Interface & Compatibility
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Supports UART, I2C, and SPI
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ICSP Header for firmware upload
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RESET Button
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USB Interface supports both programming and power supply
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SDA and SCL pins near the AREF pin
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IOREF pin supports shields that adapt to 3.3V or 5V systems
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Fully compatible with all Arduino UNO R3 shields
Applications
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STEM education
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DIY electronics projects
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Smart home systems
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Rapid prototyping
Shipping List
- DFRduino Uno V3.0 x1