When we first heard about it a few weeks ago, we knew the ESP8266 UART to WiFi module was a special beast. It was cheap, gave every microcontroller the ability to connect to a WiFi network ...

Despite a wealth of tutorials for setting up and writing code for the ESP8266 WiFi ... the ESP module, connect the serial pins, and hit the program button. The basic functions of the Arduino ...

Step forward YouTuber CNLohr, who appears to have developed a reasonably low-tech way to analyze the WiFi strength of any 3D space. Using just a WiFi module ... powered ESP8266 chip to ping ...