WWZMDiB Improved Version Board Compatible with Arduino UNO R3 Compatible with Arduino IDE ​​with USB Cable and 2.54mm Straight Pin Header ATmega328P

Cheap and good!

Great little Arduino - can’t beat at the price - functions perfectly

Uno R3. What more do you need to ask is a controller

I never write reviews but saw many on here that had issues. Keep in mind the chip is not a 328p like the normal uno uses. It is a 328pb. The pb variant actually has upgraded features but is backwards compatible. First thing is to make sure you go in arduino ide and go to settings. At the bottom there is a button that you can add a web address. There will be a link somewhere near there that will bring you to a page that lists many boards etc. Find minicore and copy paste the link into the arduino input box. Hit ok and then go to your board manager and find minicore. Hit install. Once installed. Go to where you select your board type and you should see a listing of minicore. Next menu pick the atmega328. Here's the part not to forget in your menus you will have a bunch of added options. Find the one that says "variant" and select "PB" now you should be able to upload sketches to it (may need to install 340G drivers. I don't know as I program my boards with a usbasp type programmer).

I have had nothing but problems with these boards: the Arduino IDE does not even recognize that a board has been attached. I teach an Arduino class: 5 of the 16 boards were faulty. I see that I might be able to resuscitate them by monkeying with my settings, but I need more reliability in a classroom setting.

This is a great learning tool for my son

It's cheap and it just works, the first time I started it, I had problems since it used a different chip I believe, but once I got that sorted out, it was working perfectly. It's obviously not fast, but it has impressed me with how much it can do.

UNO worked very well