DFRduino Mega2560 (Arduino Mega 2560 R3 Compatible)
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DFRduino Mega2560 (Arduino Mega 2560 R3 Compatible)
The DFRduino Mega2560 is a powerful ATmega2560-based microcontroller board that’s fully compatible with the Arduino Mega 2560 R3. Designed for complex projects, it offers 54 digital I/O pins, 16 analog inputs, 4 UARTs (hardware serial ports), and runs at 16 MHz.
The latest version features an improved VIN power supply circuit, switching from an overheating-prone LDO to a DC-DC converter, ensuring stable performance and long-term reliability. It even operates reliably with 3.7V lithium batteries.
You can program it directly via USB or power it through an external adapter. With 256KB of flash memory, it offers 2x more storage than the Arduino Mega1280 — ideal for applications needing extra I/O and memory.
Key Features
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Microcontroller: ATmega2560
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Operating Voltage: 5V
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Input Voltage (VIN): 7–12V (supports 3–16V, 20V max)
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Digital I/O Pins: 54 (15 PWM)
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Analog Input Pins: 16
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UART: 4
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I2C / SPI: Supported
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Flash Memory: 256 KB (4 KB used by bootloader)
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SRAM: 8 KB
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EEPROM: 4 KB
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Clock Speed: 16 MHz
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USB Connection: A-B USB Cable
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Dimensions: 100 × 53 × 15 mm
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Weight: 70g
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IDE Compatibility: Arduino IDE 1.0 and above
Includes
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1 x DFRduino Mega2560 Microcontroller Board
Applications
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Advanced DIY electronics
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Sensor-intensive robotics
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IoT systems and automation
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Wearable tech and smart machines
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Projects needing multiple communication interfaces
Project Example
Simple Arduino-based Bioresonance Therapy Device
This DIY project showcases how to build a professional-like therapy device for under $25, using the DFRduino Mega2560 as the main controller.
Reference
Effective Date: March 27, 2025
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