HiLetgo 2pcs ESP8266 NodeMCU CP2102 ESP-12E Development Board Open Source Serial Module (Pack of 2PCS)

These cheap little chips are awesome! Took a little bit to get them working, but once I did, I was able to connect them to a linear servo and control the air ducting in our house from any device. Ive worked with other web based arduino chips before but these are really cheap and work great!

There is no decent support for the Linux user out there...everything is W$ pap translated for Linux and it just does not work...or its glib pap from some enthusiastic idiot who leaves critical (complex) steps out and it is impossible to reproduce their junk. If you really want to waste your time, buy one of these frauds and try to make it do anything besides blink.

I had purchased arduinos and the esp-01 separately before I realized these were a thing. I purchased 6 of these so far and will probably end up buying more. These are very versatile and are perfect for the automation project Im working on. I would recommend these to anyone looking to work with devices (sensors, servos, etc) that they want to control or monitor online.

Good packaging. Overall good product

Ive purchased 6 of these. Worked fine as described.

This product worked exactly as I wanted it to for my project. I am using it as a light for my bedroom that I can control via my phone. I connected them up to some programmable LED light strips and it does exactly what I want it to. The only part about this product that didnt work as well as I’d like it to is the connection with the WiFi. However, this issue could be caused to my WiFi router not putting off a strong enough signal. Other than that little issue though, these devices work wonders and I am very happy with my purchase.

1 of the pieces came damaged. It powers on but the wifi never connects. Apart from that the other one works excellent.

Bought 2 of these development boards to learn electronics while developing a simple weather sensor project. As a beginner, I would definitely recommend this board. After following the directions on the website to configure the IDE and referring to the pinout graphic mentioned on another review, I had no problems getting started. It works well with the Arduino IDE running on Ubuntu. Just take care to use a good USB cable since some of them (for example, some that are intended to charge cell phones) do not always have the same data connections required. I did have to contact the seller for assistance with one board, but they were able to resolve the problem without delay. Ive already started planning new projects!

Items are well packaged and arrived without damage. No problems in using them with the Ardunio IDE. My only wish was that the NodeMCU devices were available without headers. While the headers are very helpful for prototyping, it would be nice for finished projects to be able to save space by attaching wires directly to the module.

IDK why all these tech nuts dont think this thing runs on 5v, it obviously does, just use the vin pin instead of the 3v3 pin, itll also just run off of the USB port, which is 5v... the drivers were hard to get. so was the software. everything works now though!