Original Arduino Mega 2560 ATmega2560 MCU Rev3

The Original Arduino Mega 2560 Rev3 is the ultimate microcontroller board for complex, I/O-intensive projects. Built around the powerful ATmega2560processor, it delivers 54 digital I/O pins, 16 analog inputs, and 256 KB of flash memory - making it the go-to board for robotics, 3D printers, CNC machines, and large-scale automation.

Specifications

• Microcontroller: ATmega2560 (8-bit AVR)
• Board Version: Rev3 (Latest Official Revision)
• Operating Voltage: 5V
• Input Voltage (Recommended): 7-12V
• Input Voltage (Limit): 6-20V
• Digital I/O Pins: 54 (15 provide PWM output)
• Analog Input Pins: 16
• DC Current per I/O Pin: 20 mA
• DC Current for 3.3V Pin: 50 mA
• Flash Memory: 256 KB (8 KB used by bootloader)

Why Choose Original Arduino Mega 2560 ATmega2560 MCU Rev3?

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Key Features of Original Arduino Mega 2560 ATmega2560 MCU Rev3

• Massive I/O Capacity: With 54 digital pins, 16 analog inputs, and 4 hardware serial ports, it handles complex multi-sensor, multi-actuator projects that smaller boards simply cannot.
• 256 KB Flash Memory: Run large, sophisticated sketches with extensive libraries - 4x the memory of the Arduino Uno.
• 4 Hardware Serial Ports: Communicate simultaneously with GPS modules, Bluetooth, GSM shields, and serial displays without software serial conflicts.
• Full Shield Compatibility: Pin-compatible with thousands of Arduino shields, including motor shields, Ethernet shields, TFT displays, and sensor shields.
• ATmega16U2 USB Chip: Rev3 uses a dedicated ATmega16U2 for USB-to-serial conversion, providing faster, more reliable communication than CH340/CP2102 clones.
• Tech Depot India Power Management: Automatic power source selection between USB and external supply, with built-in voltage regulation and overcurrent protection via resettable polyfuse.
• ATmega2560 Processor: 8-bit AVR RISC architecture running at 16 MHz, delivering reliable real-time performance for sensor reading, motor control, and data processing.
• 15 PWM Outputs: Precise analog-style control for servos, LED dimming, motor speed regulation, and audio generation across 15 dedicated pins.
• 6 External Interrupts: Respond instantly to hardware events on pins 2, 3, 18, 19, 20, and 21 - essential for encoders, limit switches, and real-time triggers.
• Built-in LED: Onboard LED connected to pin 13 for quick testing and debugging without external components.
• ICSP Header: In-Circuit Serial Programming header allows direct AVR programming and firmware updates via external programmers.
• Reset Button: Conveniently placed reset button for quick program restarts during development and testing.
• 3.3V and 5V Output: Onboard regulated power outputs to power external sensors, modules, and shields directly from the board.
• 100% Authentic

Perfect For

• General-purpose microcontroller prototyping and sensor interfacing
• IoT, robotics and home-automation builds
• Educational and hobbyist embedded-systems projects

Frequently Asked Questions

Customer Support

Email: techdepotindia@gmail.com

WhatsApp: Available for setup and troubleshooting help

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Related: Browse more from our Arduino collection, or see all products at Tech Depot India.