HiLetgo 1PC ESP8266 NodeMCU CP2102 ESP-12E Development Board Open Source Serial Module Works Great for Arduino IDE/Micropython (Small)

Great intro into this platform

I was able to set up the basic blink example with the Arduino IDE and then as a wireless button to turn on/off my IFTTT connected TP-Link Kasa smart light bulb. So it definitely works! It can be challenging to setup for a beginner. I had to find and install Windows drivers and then get it to work with the Arduino IDE. I didnt know that it can be use as a standalone device and an Arduino Uno isnt required! Get the 3 pack for the best bang for the buck. Youre essentially getting 3 wifi devices. How you use it is up to your imagination!

Two stars for HiLetgo reaching out to me to offer a replacement. One star for Amazon quick refund. Does not work for anything but the blinky sketch or the check_flash_config sketch. (this is commonly reported on the Internet) Constant resets and errors with anything more involved like listing WiFiaccess points (also commonly reported). NodeMCU, forums were no help and the Internet esp8266 experts are pretty much unanimous that the design is flawed making it flakey and not in the just works category as some other solutions. I cant see how people rate this better than arduino as even the cheapest arduino stuff from China works better than NodeMCU.

It had a simple job, just report temperature from my temp sensor. Everything was fine for the first week. I got myself a reliable power supply, so there was no power spikes that could fry this board, but after 2 weeks board went down. Whenever I connect it to my computer, Serial Monitor returns garbage from the board. I have some experience with ESP8266, and I can certainly say that they DO NOT WORK FOR FEW WEEKS and then break. I have another ESP8266 from Adafruit, and its been working NON-STOP for a YEAR now. And this thing broke in 2 weeks... Sorry, but this does not deserve even 1 star

I purchased these to make a temp/humidity probe for my grow tent. I also bought some ESP32s just in case.. I got it working and the ESP8266 is working just fine. Im new to this and now I have spare boards. I think I found my new rabbit hole.

Works great

great little kit. works well as an independent web based server controlling OLED display, servos and sensors. the reason I am taking off a star (or two) is that the documentation is pretty sparse and getting everything to work takes hours of browsing various discussion groups, pin mapping is really confusing and requires a lot of trial and error experimentation. For example GPIO09 pin is completely messed up and does not work for I/O just resets the board.

This is essentially a PROTOTYPE of a particle.io knockoff. 1. The driver source doesnt support any Linux kernel beyond 2.6.25 - WHICH WAS RELEASED NEARLY TEN YEARS AGO 2. Quality control is non-existent. Device never powered up and the ESD packaging was ESD in appearance only. 3. The Dev Kit repository is just a mess created by developers that dont understand how source control works or why bundling source files in binary containers is an incredibly stupid idea I gave up before I bothered to find a number 4. There are so many other better products that offer more features and stability at the same price. Avoid HiLetgo like the plague.

Very high quality. Bought several for different projects. HiLetgo makes high quality products.

I was able to do simple project using this NodeMCU ESP8266 model. This is the best choice for ESP8266 since its a standalone product that doesnt require arduino board to program