Five Stars
This Arduino clone board worked perfectly for me right out of the box. No drama, no issues, no system software updates. Just upload the newest compatible version of Arduino with your OS.
I am a reasonably experienced multi-platform computer user, but Mac is my preferred platform. For me, running Mac 10.13.6 High Sierra on a 2012 Mac Mini, Arduino 1.8.19 works flawlessly. AccelStepper, ezButton, and all the other popular libraries worked first time.
The supplied USB cable was too short for my purposes, so I had to substitute a known working data plus power USB cable. Also, the device does not like being ported through hubs, though with the right hub it probably works fine. I just didn't bother.
I did get one "device drawing too much USB current" alert from my Mac OS, but I have no idea why. It was just sitting there. I think it was a fluke or a momentary short or something as I had the board laid out on my desktop.
Other than that, works like a charm. Accepts the XikenTec HCDC Shield.
Not all clones are created equal. See my review of "another brand" of Uno clone, the very cheapest one currently on Amazon. I'm ordering another one of these Elegoo right now to replace that one, which I am sending back.
The Elegoo branded Uno clone seems like a good compromise between clone pricing and OEM compatibility. Or, screw around loading drivers and fiddling with your OS for a day or two and save an additional five dollars. :-)
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From the brand
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ELEGOO STEM kits provide all the necessary components, sensors, wires, and boards for you to get started with programming, learning electronics, and creating IoT projects.
We strive our best to make STEM education easy to learn and accessible to the young generation.
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DIY Robotic Car Kits
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Controller Boards
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PHECDA Laser Engraver & Cutter
Product Description
----The RX and TX LEDs on the board will flash when data is being transmitted via the USB-to-serial chip and USB connection to the computer.
----The ELEGOO UNO R3 puts SDA and SCL pins beside the AREF. Besides, there are two new pins placed near the RESET pin. One is the IOREF that allows the shields to adapt to the voltage provided from the board and the other one is reserved for future purposes. The ELEGOO UNO R3 works with all existing shields and can adapt to new shields which use these additional pins.
Features
* ATmega328P microcontroller
* Input voltage - 7-12V
* 5V Electric current: 500MA
* 3.3V Electric current: 50MA
* 14 Digital I/O Pins (6 PWM outputs)
* 8 Analog Inputs
* 32k Flash Memory
* 16Mhz Clock Speed
Component listing
1pcs ELEGOO UNO R3 Development Board
1 pcs USB cable
It use the same ATmega328 as official Arduino UNO R3 board. The ATmega328 on the UNO R3 comes preprogrammed with a bootloader that allows you to upload new code to it without the use of an external hardware programmer.
The ATmega328 has 32 KB (with 0.5 KB occupied by the bootloader). It also has 2 KB of SRAM and 1 KB of EEPROM (which can be read and written with the EEPROM library).
It use the same ATmega16U2 as official Arduino UNO R3. The ATmega16U2 firmware source code is available in the official repository. The ATmega16U2/8U2 is loaded with a DFU bootloader, which can be activated.
The ELEGOO UNO R3 board can be powered via the USB connection.
The ELEGOO UNO R3 board can be powered with an external power supply.
Excellent welding and production quality to make sure satisfied customer experience
Clearly printed pin names on the header connector, more precise and much easier to use the wires.
ELEGOO MEGA R3 Board ATmega 2560
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ELEGOO UNO R3 Project Super Starter Kit with Tutorial
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ELEGOO Mega 2560 The Most Complete Starter Kit with Tutorial
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ELEGOO UNO R3 Project Complete Starter Kit with Tutorial
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ELEGOO UNO R3 Project Smart Robot Car Kit V4
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| Customer Reviews |
3,142
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15,655
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7,570
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3,170
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3,797
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2,412
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| Price | $22.99 | $35.99 | $52.79 | $59.99 | $79.99 | $36.99 |
| Control Board | MEGA R3 | UNO R3 | MEGA 2560 | UNO R3 | UNO R3 | UNO/MEAG |
| Compatibility with Arduino | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Projects Tutorial Included | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Assembly Requirement | ✓ | No | No | No | ✓ | No |
| Reasons to Buy | Extra Points; 256 KB of Flash Memory Store; Simplification and Security; Diverse Power Methods | Tutorial ofTutorial of 24 Projects, Cost-effetive Starter Kit | Tutorial of 33 Projects, Powerful Mega R3 Control Board | Tutorial of 33 Projects, Complete Stater Kit with UNO R3 | ELEGOO EleRobot APP; FPV Mode; Obstacle Avoidance; Line Tracking Mode | Updated Version, Compatibility with Arduino IDE and STM32. |
Tough item to hate
This is a clone, but it’s easy to set up and has a decent memory capacity. I put on very little code and it took 8% but since it’s a microcontroller it’s not meant to control that many things. It’s very fun to build circuits and create things from that- I made a small prototype of a plant waterer
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- Reviewed in the United States on April 27, 2024
- Reviewed in the United States on April 18, 2025
- Reviewed in the United States on March 24, 2025
- Reviewed in the United States on November 27, 2024
This is a great board. It works identically to my old Arduino UNO. I noticed an extra blob of solder on my board but it doesn’t seem to create any short circuits and even if it did, I can use my soldering station to remove it. I can see how this would be a problem for those who aren’t into soldering but for me, being able to achieve the same functionality as the Arduino UNO for cheaper is worth it. I’d buy this again.
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- Reviewed in the United States on April 24, 2024
- Reviewed in the United States on January 17, 2025
