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INTRODUCTION

The new version of DFRduino Mega2560 has improved the VIN power supply circuit by changing the easily overheat LDO to DC-DC circuit for ensuring the safety and reliability in long-term use. In addition to optimizing the overheating issue, it offers a wider input voltage range. What’s more, DFRduino Mega2560 can work steadily even when only powered by 3.7V lithium battery.

DFRduino Mega2560 is an ATmega2560-based micro-controller that provides full compatibility with "Arduino MEGA2560“. It features 54 digital I/O ports, 16 analog signal input ports, 4 UARTs(hardware serial ports), a 16MHz crystal oscillator. The board comes with a bootloader that enables users to download programs directly via a USB. You can simply power it with a USB cable or a standard adapter or use battery as external power. Mega 2560 has 256KB FLASH, two times of Mega1280, which could offer a larger create space for your projects.

DFRobot Arduino Compatible Microcontrollers Series
NameDFRduino UNODFRobot LeonardoDFRobot Mega 2560Romeo V2Romeo
SKUDFR0216DFR0221DFR0191DFR0225DFR0004
MicrocontrollerATmega328pATmega32u4ATmega2560ATmega32U4Atmega328
Working voltage5V5V5V5V5V
CPU Frequency16MHz16MHz16MHz16MHz16MHz
TIO ports / PWM6 / 147 / 2054 / 1520 / 714 / 6
Analog inputs61216128
UART12421
I2C11233
SPI11111
Interrupt pins22222
EEPROM[KB]11411
Flash[KB]32322563232
SRAM[KB]22.582.52
USB

A-B USB cable

micro USB cable

A-B USB cable

micro USB cable

A-B USB cable

Dimension75*55*15mm75*55*15mm100*53*15mm89*84*14mm90*80*14mm
Vin7-12V7-12V7-12V7-12V7-12V
Price$19.9$19.9$24.9$34.95$29.5
Weight（g）4550708080
IDE versionArduino 1.0 and aboveArduino 1.0 and aboveArduino 1.0 and aboveArduino 1.0 and aboveArduino 1.0 and above
FeatureDFRduino UNO is fully compatible with Arduino UNO R3, suitable for Arduino beginner and hobbyistsDFRobot Leonardo is a low-cost controller, integrated with Xbee and SPI. Suitable for low cost and communication demand of hobbyistsDFRduino Mega has 54 digital pins and 16 analog pins, 4 UART channels. Suitable for demands of vast sensorsUse ATmega32u4, 2 serial ports. Integrated with Xbee socket and motor driversMicrocontroller with motor driver, communication ports, IO expansion ports, it can be used as the main controller of robots

SPECIFICATION

  • Controller Model: ATmega2560
  • Operating Voltage: 5V
  • Input Voltage(VIN): 3-16V(20V max)
  • Digital I/O Pins: 54 (of which 15 provide PWM output)
  • Analog Inputs: 16 I/O
  • FLASH: 256 KB (of which 4 KB used by bootloader)
  • SRAM: 8KB
  • EEPROM: 4KB
  • Frequency: 16MHz

DOCUMENTS

SHIPPING LIST

  • DFRduino Mega2560 Microcontroller x1

    • PROJECTS

    Project 1. Hyduino - Automated Hydroponics with DFRduino Mega2560
    hydroponics is growing plants without the use of a traditional dirt medium by using a nutrient-rich water solution. This is especially great for those people that have limited areas in their backyard to grow in.
    Hardware list:

    TUTORIAL