The ESP8266 WiFi module is the latest, made interesting because it pretty much doesn’t exist outside China. Why is it cool?

For his example image, [CNLohr] has a few WS2812 RGB LEDs connected to the ESP8266 WiFi module. Uploading the image turns the LEDs into something controllable with UDP packets on port 7777.

But instead of just cracking open the device to upgrade it with a second screen, they took the hack several steps further, adding an ESP8266 wifi module and a rechargeable battery without ...

We already know that it's possible to map your home's WiFi signal in 2D, but that doesn't help if you're holding your phone above your head to get connected. Step forward YouTuber CNLohr, who ...