The DFRduino Uno V3.0 from DFRobot is a compatible Arduino board that is ideal for schools or hobbyists. It serves as a great entry-level microcontroller board that is fully compatible with the Arduino UNO R3 and the open-source development environment Arduino IDE. This board features the ATmega16U2 as a USB-to-serial converter. An additional advantage is that the DFRduino UNO R3 board uses the AVR chip in a DIP package, allowing for easy removal of the chip for firmware updates or reprogramming, or for use in a more compact project.

The headers are color-coded to indicate different types of I/O ports that correspond to DFRobot's sensor cables. This color coding simplifies the connection of sensors and helps identify the analog (blue) or digital (green) side. The Arduino Uno is based on the ATmega328 microcontroller and has 14 digital input/output pins (six of which can be used as PWM outputs), six analog inputs, a 16 MHz quartz oscillator, a USB port, a power jack, an ICSP header, and a reset button. It includes everything needed to support the microcontroller.

Technical Details:
Manufacturer: DFRobot
Manufacturer SKU: DFR0216
Microcontroller: ATmega328 (DIP package)
USB-UART Interface: ATmega16U2
Operating Voltage: 5V
Input Voltage (recommended): 7 to 12V DC
Input Voltage (limits): 6 to 20V DC
PC Connection Port: USB-B / USB Type B
DC Connection: Barrel Jack 5.5mm / 2.1mm
Digital I/O Pins: 14 (including 6 with 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 2 KB is used by the bootloader
SRAM: 2KB (ATmega328)
EEPROM: 1KB (ATmega328)
Clock Frequency: 16MHz
Dimensions: 75 x 54 x 15mm
Weight: 45g

Included:
1x DFRduino UNO R3 Arduino-compatible board.