DFRduino UNO R3 with IO Expansion Shield and USB Cable A-B

Item number 59445 Brand DFRobot Model DFR0216-2 Share Write a review
DFRduino UNO R3 with IO Expansion Shield and USB Cable A-B

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The DFRduino Uno V3.0 from DFRobot is a compact computing board designed for academic or developmental purposes. It is a straightforward microcontroller board that is fully compatible with both the Arduino UNO R3 and the open-source Arduino IDE development environment. This IDE utilizes the Processing/Wiring language and allows for the development of standalone interactive objects or integration with computer software like Flash, Processing, or MaxMSP. The open-source IDE is available for free download and is compatible with Mac OS X, Windows, and Linux.

This board is equipped with an ATmega16U2 chip, programmed as a USB-to-serial converter. A unique feature of our DFRduino is that it uses a DIP package AVR Chip, which can be removed for firmware updates or reprogramming. The board's headers are color-coded:

  • Red for the Power Section
  • Blue for Analog I/O
  • Green for Digital I/O

These colors correspond with our sensor cables, simplifying sensor connections and making it easy to distinguish between Analog (blue) and Digital (green) sides.

Arduino Uno

The "Arduino Uno" is a microcontroller board based on the ATmega328 chip. It features 14 digital input/output pins, six of which can be used as PWM outputs, six analog inputs, a 16 MHz crystal oscillator, a USB port, a power jack, an ICSP header, and a reset button. The board comes with everything needed to operate the microcontroller; simply connect it to a computer via a USB cable or power it with an AC-to-DC adapter or battery.

Additional features include SDA and SCL pins located near the AREF pin and two new pins near the RESET pin: the IOREF, which allows shields to adapt to the board's voltage, and a second unconnected pin reserved for future use.

Note: This package includes the DFRduino UNO R3, Gravity: IO Expansion Shield, and a USB Cable A-B.


  • Microcontroller: ATmega328 (DIP Package)
  • Operating Voltage: 5V
  • Input Voltage (recommended): 7 ~ 12V
  • Input Voltage (limits): 6 ~ 20V
  • Digital I/O Pins: 14 (of which 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 of which 2KB used by bootloader
  • SRAM: 2 KB (ATmega328)
  • EEPROM: 1 KB (ATmega328)
  • Clock Speed: 16 MHz
  • Size: 75 x54 x15 mm (2.95 x2.13 x0.59")
  • Environment Friendly: Rohs Compliance

Shipping List:

  • DFRduino Uno V3.0 x1
  • Gravity: IO Expansion Shield for Arduino V7.1 x1
  • USB Cable A-B for Arduino Uno/Mega x1


Brand information
Brand DFRobot
€ 29,25€ 24,15 Excl. VAT (NL)
Out of stock In stock with supplier
Delivered in 5 to 10 days
Show volume discounts Shipped from € 5,95 (NL) 30 days cooling-off Excellent service

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