5 Stars By Richard Cowan on 2017-08-30
I love this board
I love this board. At a fraction of the cost of a genuine Arduino Uno R3 but with the same parts it's a no-brainer. I've bought two and will buy more. I write my sketches on the Arduino web site, download to the Elegoo and everything works 100%. The only issue you might have is that the mounting holes appear to be located differently, otherwise the board is a perfect clone.
5 Stars By 2DayDeliver Customer on 2017-09-07
Great uno R3 board. Quality is as good as more expensive boards. Here is initial problem I had in case you run into the same thing. When trying to upload to board, would get a "upload problem error". Be sure to go to Tools / port and select the COM port that is showing(after you connect the board) . Because for some reason, the board changes ports from my other board( an Arduino uno R3 ). One uses COM5, the other COM3, dont know why. Once I found that, it worked perfectly.
5 Stars By 2DayDeliver Customer on 2017-07-24
Seems totally compatible, but cheaper
Board has been completely compatible with everything "regular" Arduino that I've tried, but at a lower price. They even have a surprisingly helpful website.
3 Stars By Orion on 2017-09-02
Analogs are fine I'm now limited to one set of digi pins
Decent price, functions well so far, but there are some issues. When building my own shield the two sets of digital pins don't line up with my perf board. Analogs are fine I'm now limited to one set of digi pins.
Also the 5.5v out and digital out are reading 3.3 volts, unless I'm mistaken that's not correct
5 Stars By Geoff on 2016-11-13
it operates a 12 volt water pump in a perfect plug & play application
This Elegoo UNO R3 ATmega card was a ideal solution for me to build a controller for my solar hot water system. Combined with a DFRobot 2A twin motor controller shield, it operates a 12 volt water pump in a perfect plug & play application.
5 Stars By Joseph Cutting on 2017-03-19
cheap but very function Arduino
No issues with the unit, it functions exactly as an Arduino UNO. For those just getting started the included cable will power the device when plugged into you computer, but if you want to disconnect from the computer and run you program on w/e device you will need either a dc power cable which you can get on here for like $5-6 or some type of battery pack that has the right sized tip.
5 Stars By Victor on 2016-09-03
It's working just like my other UNOs
So far, It's working just like my other UNOs.
I really like the labeled headers, score!
5 Stars By Shipley165 on 2016-12-27
What's not to love. Works just like the branded product at a cheaper price!
5 Stars By lucien.briscoe on 2017-03-29
This is an awesome, low-cost option for hobby arduino projects
This is an awesome, low-cost option for hobby arduino projects. It works just like the 'name-brand', and I had no issues setting it up or programming it from the standard Arduino IDE. Great product for a low price!
5 Stars By Brandon McDonald on 2017-08-21
Good for the price.
Well constructed board. I've used a few cheapo eBay boards in the past, but they arrived with defects. No complaints on this one, very cheap.