The Arduino Mega 2560 R3 Original is the genuine Arduino development board built around the ATmega2560 microcontroller, designed for projects that need far more I/O than an Arduino Uno. With 54 digital input/output pins, 15 PWM outputs, 16 analog input pins and 4 hardware UART serial ports, the Mega 2560 Rev3 is a reliable choice for robotics, automation, 3D printer electronics, multi-sensor data logging, CNC-style control panels, educational labs and engineering-student prototypes. The board operates at 5V logic and runs at 16 MHz, with 256 KB flash memory, 8 KB SRAM and 4 KB EEPROM, giving you enough program and data space for complex Arduino sketches. It includes USB connectivity for programming through the Arduino IDE, a DC barrel jack for external power, an ICSP header and the familiar Arduino shield layout for expansion. The Rev3 design uses the ATmega16U2 as the USB-to-serial interface, a key identifier of the official Mega 2560 R3 architecture. This original Arduino board is ideal for buyers who want dependable quality, official Arduino ecosystem compatibility and long-term project stability rather than low-cost clone uncertainty. For Indian students, labs, makers and professionals, it is a premium microcontroller board for building scalable embedded systems and advanced DIY electronics projects.
SRAM: 8 KB Board: Arduino Mega 2560 Rev3 / R3 Original EEPROM: 4 KB Headers: Arduino shield-compatible headers, ICSP header Clock Speed: 16 MHz Flash Memory: 256 KB Microcontroller: ATmega2560 Power Connector: DC barrel jack and USB Digital I/O Pins: 54 Analog Input Pins: 16 Operating Voltage: 5V Input Voltage Limit: 6–20V PWM Digital I/O Pins: 15 Typical Board Format: Mega form factor, larger than Uno Hardware Serial Ports: 4 UARTs Programming Interface: USB via Arduino IDE USB-to-Serial Processor: ATmega16U2 Recommended Input Voltage: 7–12V
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