The ESP8266 is the answer to “I want something with Wifi.” Surprisingly, there are a number of engineers and hobbyists who have not heard of this chip or have heard of it but don’t really understand ...
[Jarrett] has a box of Nokia phone batteries and decided to use them in a project. He designed and built WiFi throwies— these consist of ESP8266 WiFi chips attached to custom PCBs and powered by Nokia ...