Cheap as dirt, impressively powerful, Arduino-compatible ... how you can utilize the new sensors shield via a web interface hosted on the ESP8266, and even wraps the whole thing up in a 3D ...

He’s wondering if the ESP8266 is 5V tolerant after all. If it is, great. We don’t need level converters, and interfacing the ... to the 5V pin of an Arduino that still work after months ...