DFRduino UNO V2.1 (Discontinued)

SKU:DFR0176 Brand:DFRobot
Categories: All Products

This product has been retired from our catalog and is no longer for sale. This page is made available for those looking for specification and documents.

Expected Restock Date: [[restockDate]]


Note: DFRduino UNO V2.1 is discontinued now.

This is the DFRduino Uno V2.1 from DFRobot. It is fully compatible with Arduino UNO R2. This board features the ATmega8U2 programmed as a USB-to-serial converter and it has a resistor pulling the 8U2 HWB line to ground, making it easier to put into DFU. An added bonus is that our DFRduino is still using the DIP package AVR Chip, which means you can remove it to update/reprogram the chip's firmware, or even to place it on a finished, more compact project.
The cool thing about our new DFRduino microcontroller is that the headers use different colors to feature I/O ports of different types, red for Power Section, blue for Analog I/O, green for Digital I/O. These colors match our sensor cables. This makes it really easy to figure out where to connect sensors, or to identify which side is Analog(blue) or Digital (green).
Arduino is an open-source physical computing platform based on a simple i/o board and a development environment that implements the Processing/Wiring language. Arduino can be used to develop stand-alone interactive objects or can be connected to software on your computer (e.g. Flash, Processing, MaxMSP). The open-source IDE can be downloaded for free (currently for Mac OS X, Windows, and Linux).
The Arduino Uno is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

V2.1 version log:
  • Improve the pinout to be compatible with Arduino R3 series


  • 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
  • Clock Speed 16 MHz
  • Size:75x54x15 mm
  • Weight:45 gram
  • Envionment Friendly: Rohs Compliance


Shipping List

  • DFRduino Uno V2.1 (1 unit)