can someone tell me the difference between this ans an official arduino board?

The official board comes with a plastic tray that prevents shorts to the bottom of the board. The Elegoo board comes with a USB cable and is available in two colors. There is no functional difference. While the official board may be better quality, I've had no problems with any of the Elegoo boards I've bought.

how much servo motors can this handle? how is the shield compatibility?

You have to tie the card to servo drivers to handle motors. The board outputs can handle only a TTL load per pin (about 20 mA per line). I have used a similar card tied to a Sain Smart CNC Micro-Stepping Stepper Motor Driver to handle large stepper motors using up to 4.2 Amps of current: https://www.amazon.com/gp/product/B00DFSF9GE/ref=oh_aui_search_detailpage?ie=UTF8&psc=1 I ran hookup wire from the Arduino board to the interface box(es). Sometimes I used a transistor buffer (per line) so that the 20 mA limit was not overloaded to drive two controllers for the Y-axis with full current capacity on each motor. The transistor I used was a BS270 400mA, 60V N-Channel Enhancement Mode FET. I got the transistor circuit understanding from the book, Exploring Beaglebone.

Is this the exact size as the original mega? i want to make a pcb shield for it on eagle, and will be using sparkfun's mega part footprint

I did exactly this, but with a footprint from Element14. My custom shield fits perfectly.

Are the digital outputs 3.3V or 5V?

This basically just like the Arduino Mega 2560, the digital pins are 5V as are the analog input pins. There is no version of this that is 3.3V. ATMega 2560 is a 5V chip. No need for level shifters or voltage dividers. There is one 3.3V voltage output pin, which is also typical of the Uno R3 and many other 5V Arduino/clones.

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

Product ID: 31223294

Details

Brand
ELEGOO
CPU Model
1.2GHz Cortex
Memory Storage Capacity
256 KB
Model Name
EL-CB-003
Ram Memory Installed Size
8 KB

💾256 KB flash memory for larger sketches

🔄4 hardware UARTs for multi-device serial comms

🔌54 digital I/O pins + 15 PWM outputs

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Description

🚀 Unlock limitless innovation with ELEGOO Mega 2560 R3 — the powerhouse board for next-level makers!

FLEXIBLE POWER OPTIONS - Power via USB or external DC barrel jack, perfect for desktop prototyping or embedded high-current motor projects.
PLUG PLAY USB INTERFACE - ATmega16U2 USB-to-serial chip ensures smooth, reliable sketch uploads and real-time monitoring via USB-B cable included.
EXPAND YOUR CREATIVE HORIZONS - Massive 54 digital I/O pins and 16 analog inputs let you build complex robotics and automation projects without limits.
POWER THROUGH LARGER CODEBASES - With 256 KB flash and 8 KB SRAM, run bigger, smarter sketches that handle advanced sensing and data processing effortlessly.
SEAMLESS MULTI DEVICE CONNECTIVITY - Four dedicated UART ports plus I2C and SPI support mean no more juggling serial devices—connect displays, GPS, motors simultaneously.

The ELEGOO Mega 2560 R3 is a robust Arduino-compatible development board featuring 54 digital I/O pins, 16 analog inputs, and 4 hardware UARTs. Powered by the ATmega2560 microcontroller with 256 KB flash memory and 8 KB SRAM, it supports complex robotics, automation, and multi-sensor projects. Includes USB-B interface for easy programming and flexible power options, making it a top choice for professional-grade prototyping and advanced DIY electronics.

Specifications

ASIN	B01H4ZLZLQ
Best Sellers Rank	#37 in Single Board Computers (Computers & Accessories)
Brand	ELEGOO
Built-In Media	Mega Controller Board
CPU Model	1.2GHz Cortex A8 Processor
Compatible Devices	Devices with Arduino IDE and Arduino mega R3 shield support, as well as computers with USB ports
Connectivity Technology	GPIO, I2C, USB
Customer Reviews	4.7 4.7 out of 5 stars (3,317)
Global Trade Identification Number	00719377200400, 00746591610562
Item Highlight	Build Robots, 3D-printer Controllers and Multi-sensor Systems with 54 digital I/O, 16 Analog Inputs, 4 UARTs and USB-B cable
Item Weight	2.24 ounces
Manufacturer	ELEGOO
Memory Storage Capacity	256 KB
Mfr Part Number	EL-CB-003
Model Name	EL-CB-003
Model Number	EL-CB-003
Number of Items	1
Number of Packs	1
Operating System	Windows 10
Processor Brand	Atmel
Processor Count	1
RAM Memory Installed	8 KB
RAM Memory Technology	SRAM
Total Usb Ports	4
UPC	719377200400 746591610562
Unit Count	1 Count
Warranty Description	6 MONHTS
Wireless Compability	Bluetooth

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490 DH

Duties & taxes included

In stock

Sold byAmazon MoroccoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Morocco.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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