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ELEGOOMEGA R3 Board ATmega 2560 + USB Cable Compatible with Arduino IDE Projects RoHS Compliant

ELEGOOMEGA R3 Board ATmega 2560 + USB Cable Compatible with Arduino IDE Projects RoHS Compliant

Q: 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.

Q: 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.

Q: 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.

Q: 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.

Product ID: 271281741

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Details

Brand
ELEGOO
Model name
MEGA R3
Memory storage capacity
256 KB
CPU model
1.2GHz Cortex
Connectivity technology
Bluetooth

⚡16 MHz clock speed

💾256 KB flash memory

🔌54 digital I/O pins with 15 PWM outputs

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ELEGOO MEGA R3 Board ATmega 2560 + USB Cable Compatible with Arduino IDE Projects RoHS Compliant

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ELEGOO UNO R3 Board ATmega328P with USB Cable(Arduino-Compatible) for Arduino

Description

🚀 Elevate your maker game with the ultimate Arduino-compatible powerhouse!

PLUG PLAY CONVENIENCE - Comes with USB cable and supports multiple power sources—start prototyping instantly without hassle.
ROBUST POWER RESET CIRCUIT - Upgraded RESET circuit and versatile DC barrel jack support for reliable power management.
HIGH PERFORMANCE MICROCONTROLLER - Powered by ATmega2560-16AU with 8KB SRAM and 4KB EEPROM for complex, memory-intensive projects.
SEAMLESS ARDUINO IDE COMPATIBILITY - 100% compatible with Arduino IDE and most Mega R3 shields for effortless project integration.
EXPANDED PINOUT FOR FUTURE PROOFING - Includes new SDA, SCL, IOREF pins enabling voltage-adaptive shields and enhanced connectivity.

The ELEGOO MEGA R3 Board features an ATmega2560-16AU microcontroller running at 16 MHz, 54 digital I/O pins (15 PWM), 16 analog inputs, and 256 KB flash memory. Fully compatible with Arduino IDE and most Mega R3 shields, it includes enhanced pinouts for future voltage-adaptive shields, a stronger reset circuit, and versatile power options. Ideal for professional-grade prototyping and complex embedded projects.

Have a Question? See What Others Asked

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

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

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

Are the digital outputs 3.3V or 5V?

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