ELEGOO Mega 2560 R3 Board, ATmega2560, Compatible with Arduino, Blue

ELEGOO Mega 2560 R3 Board, ATmega2560, Compatible with Arduino, Blue

Blue / 256 KB
£18.85
Sale price  £18.85 Regular price  £17.14
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ELEGOO Mega 2560 R3 Board, ATmega2560, Compatible with Arduino, Blue

ELEGOO Mega 2560 R3 Board, ATmega2560, Compatible with Arduino, Blue

£18.85
Sale price  £18.85 Regular price  £17.14
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Size256 KB
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Elegoo Mega 2560 R3 Board

ELEGOO MEGA 2560 R3 Board

ELEGOO MEGA 2560 R3 is an ATmega2560-based development board. Its expanded I/O and memory make it suitable for robotics, automation, multi-sensor systems and other projects that require more connections than smaller boards.

Product Details:

54 digital I/O pins and 16 analog inputs

Extra Points:

Besides the 54 digital I/O pins and 16 analog inputs, it also has 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It provides everything needed to support the microcontroller. You will simply connect it to a computer with a USB cable or power it with an AC-to-DC adapter or battery to get started.

preprogrammed with a bootloader

Simplification and Security:

The ATmega2560 on the Elegoo Mega comes preprogrammed with a bootloader that allows you to upload new code to it without the use of an external hardware programmer. The Mega R3 has resettable fuse that protects your computer's USB ports from shorts and over-current. Although most computers provide their own internal protection, the fuse provides an extra layer of protection. If more than 500 mA is applied to the USB port, the fuse will automatically break the connection until the short or overload is removed.

256 KB of flash memory

Memory Store:

The ATmega2560 of ELEGOO Mega R3 Controller Board has 256 KB of flash memory for storing code (of which 8 KB is used for the bootloader), 8 KB of SRAM and 4 KB of EEPROM library.

can be powered via the USB connection or with an external power supply.

Diverse Power Methods:

The ELEGOO Mega R3 can be powered via the USB connection or with an external power supply. The power source is selected automatically. External (non-USB) power can come either from an AC-to-DC adapter (wall-wart) or battery. The adapter can be connected by plugging a 2.1 mm center-positive plug into the board's power jack. Leads from a battery can be inserted in the GND and Vin pin headers of the POWER connector.

Technical Specification

Technical Specification:

Microcontroller: ATmega2560

Operating Voltage: 5 V ; Input: Voltage (recommended): 7-9 V

Digital I/O Pins: 54 (of which 15 provide PWM output)

Analog Input Pins: 16

DC Current per I/O Pin: 40 mA ; DC Current for 3.3 V Pin: 50 mA

Flash Memory: 256 KB of which 8 KB used by bootloader

SRAM: 8 KB EEPROM: 4 KB

Clock Speed: 16 MHz

LED_BUILTIN: 13

Length: 101.5 mm Width: 53.3 mm Weight: 34 g

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Price $22.99 $16.99 $11.99 $15.99 $19.99
Main MCU ATmega2560 ATmega328P ATmega328P ATmega328P ESP32-WROOM-32
USB Interface / Connector ATmega16U2 / USB-B ATmega16U2 / USB-B CH340C / USB-B CH340 / Mini-B USB CP2102 / USB-C
Logic Voltage 5 V 5 V 5 V 5 V 3.3 V GPIO
Digital I/O Pins 54 14 14 14 Multiple GPIO*
PWM Outputs 15 6 6 6 Multiple PWM Channels*
Analog Inputs 16 6 6 8 Multiple ADC Channels*
Hardware UARTs 4 1 1 1 3
Memory 256 KB Flash / 8 KB SRAM / 4 KB EEPROM 32 KB Flash / 2 KB SRAM / 1 KB EEPROM 32 KB Flash / 2 KB SRAM / 1 KB EEPROM 32 KB Flash / 2 KB SRAM / 1 KB EEPROM 4 MB Flash / 520 KB SRAM
Wireless None None None None 2.4 GHz Wi-Fi + Bluetooth 4.2
Best For Multi-Sensor & Large I/O Projects General Electronics & Prototyping General Electronics & Prototyping Compact & Breadboard Projects IoT & Wireless Projects

*ESP32 GPIO functions vary by pin; refer to the board pinout for input-only and special-function pins.

  • MORE I/O FOR COMPLEX PROJECTS: Use 54 digital I/O pins with 15 PWM outputs, 16 analog inputs and expanded headers for robotics, automation, multi-sensor systems, CNC experiments and other projects that need more connections
  • ATMEGA2560 MEMORY FOR LARGER SKETCHES: Run at 5 V and 16 MHz with 256 KB flash, 8 KB SRAM and 4 KB EEPROM, providing extra program space and working memory for larger control, sensing and data-handling tasks
  • FOUR HARDWARE UARTS FOR MULTI-DEVICE BUILDS: Connect serial devices such as displays, GPS modules or motor controllers without sharing one port, while I2C, SPI, external interrupts and ICSP support additional expansion
  • ATMEGA16U2 USB INTERFACE: Use the included USB-A to USB-B data cable for sketch uploads and serial monitoring, with the ATmega16U2 handling USB-to-serial communication between the board and a connected computer
  • USB OR EXTERNAL POWER: Power the board by USB or a suitable regulated DC source through the barrel jack, and use proper drivers or separate supplies for motors and other high-current loads; includes 1 MEGA 2560 R3 board and 1 USB cable

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