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 UnoThe "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.Specifications: * 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 Projects: * DFRduino UNO R3 Related Projects: * Spectrophotometer Experiment Based on AS7341 Spectral Sensor * How To a Make Bluetooth Tank for Arduino with Custom Android Application (V1.0)? * Arduino Project - Make an Arduino Intervalometer For Timelapse Photography * Existential Crisis aka Arduino RPG * How to Make A Terrifying Halloween Gadget? * How to Build a Robot – Lesson 1: Introduction * How to Build a Robot Lesson 2: Build a Basic Robot with Arduino * How to Build a Robot Lesson 3: Build a Line Tracking Robot with Arduino * How to Build a Robot Lesson 4: Build a Robot That Could Avoid Obstacles with Arduino * How to Build a Robot Lesson 5: Build a Robot With Light And Sound Effects with Arduino * How to Build a Robot Lesson 6: Build a Robot That Could Monitor Environment with Arduino * How to Build a Robot Lesson 7: Build a Bluetooth-Controlled Robot with Arduino * How to DIY an Indoor Carbon Dioxide Detector? * How to Build A Smart Cooling Fan with Arduino * DFRduino UNO R3 Project 1: * How to Make A Terrifying Halloween Gadget * This is a simple but fun application for Halloween. All you need is a mask, a stepper motor, a micro-controller, a motor driver, a MP3 module and some wires as well as batteries. * Hardware components: * DFRduino UNO R3 - Arduino Compatible * TMC260 Stepper Motor Driver Shield For Arduino * Bipolar Stepper Motor with Planet Gear Box (18kg.cm) * DFPlayer - A Mini MP3 Player For Arduino * Gravity: Digital PIR (Motion) Sensor For Arduino Documents: * ATmega328P datasheet * DFRobot Arduino Compatible Microcontrollers Selection Guide 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 https://elecena.pl/product/27746415/dfrobot-dfrduino-uno-r3-with-io-expansion-shield-and-usb-cable-a-b 2025-01-23 https://elecena.pl/product/27746415/dfrobot-dfrduino-uno-r3-with-io-expansion-shield-and-usb-cable-a-b 2025-09-29 https://elecena.pl/product/27746415/dfrobot-dfrduino-uno-r3-with-io-expansion-shield-and-usb-cable-a-b 2026-02-21 https://elecena.pl/product/27746415/dfrobot-dfrduino-uno-r3-with-io-expansion-shield-and-usb-cable-a-b 2026-03-05 https://elecena.pl/product/27746415/dfrobot-dfrduino-uno-r3-with-io-expansion-shield-and-usb-cable-a-b 2026-03-14 https://elecena.pl/product/27746415/dfrobot-dfrduino-uno-r3-with-io-expansion-shield-and-usb-cable-a-b 2026-03-21 https://elecena.pl/product/27746415/dfrobot-dfrduino-uno-r3-with-io-expansion-shield-and-usb-cable-a-b 2026-03-24 https://elecena.pl/product/27746415/dfrobot-dfrduino-uno-r3-with-io-expansion-shield-and-usb-cable-a-b 2026-03-26 https://elecena.pl/product/27746415/dfrobot-dfrduino-uno-r3-with-io-expansion-shield-and-usb-cable-a-b 2026-03-28 https://elecena.pl/product/27746415/dfrobot-dfrduino-uno-r3-with-io-expansion-shield-and-usb-cable-a-b 2026-04-12 https://elecena.pl/product/27746415/dfrobot-dfrduino-uno-r3-with-io-expansion-shield-and-usb-cable-a-b 2026-04-17