Goouuu-S1 ESP8266
This is an ESP8266 based board, in case you buy one of these here is some info I have found
Goouuu-S1 ESP8266 WiFi module is...
About the ESP8266
The ESP8266 is a low-cost Wi-Fi chip with full TCP/IP stack and microcontroller capability produced by Shanghai-based Chinese manufacturer, Espressif Systems
The chip first came...