Arduino MEGA R3 ATmega2560-16AU Compatible Development Board | Microcontroller Boards

The Arduino MEGA R3 ATmega2560-16AU Compatible Development Board is a large-format development board built around the ATmega2560, providing 54 digital I/O pins, 16 analog inputs, 15 PWM outputs, 256KB of flash memory, 8KB SRAM, and 4KB EEPROM. It runs at 5V operating voltage with a recommended 7V to 12V input supply and accepts up to 20V at the input limit. The Arduino MEGA R3 board is the go-to choice for arduino based projects that exceed the I/O count and memory available on the Arduino Uno or Nano — particularly CNC machine shields, 3D printer RAMPS boards, and multi-sensor data logging platforms.

The arduino mega ATmega2560 board provides four hardware UART serial ports (Serial, Serial1, Serial2, Serial3), which is a significant advantage over the single UART on smaller Arduino boards. This allows the Mega to communicate with multiple serial devices — GPS modules, GSM modems, Bluetooth modules, and debug terminals — simultaneously without software serial workarounds. The Microcontroller Boards category in engineering college labs relies heavily on the arduino mega r3 for robotics arms, automated irrigation systems, and industrial simulation projects where pin count is the limiting factor on smaller boards.

The Arduino MEGA R3 is verify enclosure dimensions before committing to a panel-mount or box build. The non-obvious advantage of the ATmega2560 over smaller AVR MCUs is its 86 available I/O pins in the full chip package — the mega r3 board exposes 70 of these, and the extra pins can be accessed through custom carrier boards for even larger builds. Available from StemVolt, this board is suitable for engineers working on complex multi-peripheral Arduino applications and practical embedded electronics projects.

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Features:

• 54 digital I/O pins cover motor drivers, sensors and display peripherals
• 256KB flash memory stores large sketches with external library overhead included
• Four hardware UART ports allow simultaneous multiple serial device communication
• 16 analog inputs support multi-channel ADC sensor data acquisition projects
• 4KB EEPROM retains configuration data after power cycle without external memory

Technical Specifications:

 Applications:

• Arduino MEGA R3 ATmega2560 Board used for CNC machine shield control
• 3D printer uses Arduino MEGA R3 board with shield
• Robotics arm project uses arduino mega r3 for multi-servo PWM control
• Multi-sensor data logger uses arduino mega ATmega2560 board for 16 ADC channels
• College final year project uses Microcontroller Boards for industrial automation

Package Includes:

• 1 x Arduino MEGA R3 ATmega2560-16AU