ESP8266 Serial Wireless Module ESP-12E CH340 NodeMcu V3 Lua WiFi Internet of Things New Version Development Board Compatible with Arduino IDE/MicroPython (6pcs)

Got these to setup my own sensors for home assistant. They work great and do what I need.

Good value for the $... but there are 2 things to know before you buy:1. These are physically larger than all the other brand NodeMCU. These did not fit in my NodeMCU cases. I am not sure why the size is larger. than the usual NodeMCU spec.2. WiFi operational range is considerably less than other branded NodeMCU. I usually can get 20+ Meters, through walls range in my NodeMCU project, but this brand it seems like they are only about 3M for some reason.

I would recommend them to my associates

Great for the cost. I do have to reset all the boards often to get the wifi back on.

super low power, easy to setup, also use them for clocks and various other strange yet fun things. they work perfectly with everything.

The dimensions of the board are fine if you are making a custom PCB for it. But when set on a standard solderless breadboard, the pins occupy the outermost rows (a and j). This will make it interesting to make connections to the IO pins.It is bigger than a lot of other boards out there. The writing on the board is easy to read though!No problems firing it up and running Blink with the onboard LED using Arduino IDE.

2 of 3 boards had a tiny piece fall off the corner (soldered on but fell off) when pulling it out of the bag. Still powered and still was able to connect to wifi. I don't know how or what it would affect.

Rock solid board. As with most development boards, you must pay attention to the limitations on a few of the pins such as if held low, boot will fail. WiFi is quite reliable.