KEYESTUDIO 3.3V 2Pcs ESP8266 ESP-01 ESP01 WiFi Wireless Serial Transceiver Receiver Module Starter Kit for Arduino R3 Raspberry Pi Project

There is no documentation with this product. After turning the web inside out to find information, I found connection diagrams that were incorrect, and drivers that will not build. I have found one driver, WiFiEsp that does build, however, I have yet to get it working. I need to listen on a socket, and so far have found problems in the driver and still don't have it debugged and working. If you want to use these, You had better be prepared to do a lot of digging to find the information and source code you need.Additional Note: After working on this for a few days, I decided to scrap the libraries. This device has the comlete TCP/IP stack programmed in and will respond to Hayes-style AT commands. I now have it working without any libraries. It does work as advertised, and was a great fit for my project.

I had ordered some of these modules in the past from China and they are pretty much commodity devices over there, but these appear to be of higher quality. They are clean, well-soldered and worked perfectly for my purpose of connecting a few Arduino Mega boards to MQTT and the internet.Please note that these are a little different to program than a typical "arduino" board, but once you get it, it's easy and these devices worked flawlessly.

DIY project is a very interesting device, which is a good substitute for Arduino and can be easily connected to a wireless network;It can also be programmed in different languages, which is an advantage of the device.The only thing to note is that the operating voltage is 3.3 v.Therefore, in general, it is a basic product for hobbyists and manufacturers, and it is absolutely indispensable in your project!

Seems to be working but would never load up the code I profaned with a development bird and arduino

Nice WiFi modules and well priced. I rarely have any issue with Keyestudio products. These modules work great with Arduino boards. Yes you can connect them to Other devices such asa Raspberry Pi 3B but it is a little superfluous considering they have built in WiFi modules.

Good price and valu

these didn't respond to any of the AT commands specified by the documentation in the wiki maintained by the manufacturer.

Doesn't work.

I tested both and they are now working the Prusa mini+ 3D printer.

I really like the products from KEYESTUDIO, they have great customer service when needing some help.Worked on the small projects that were being tested on.What I didn't keep in consideration is that these seem to be an older version since I was unable to update the firmware to the latest available on the manufacturer's website.I had to search to find the original version to reflash them to factory specs.Other than that they work great

Nice controllers to use instead of random Chinese made.

Works as advertised

Product as described.