New version ESP8266-S1 low cost low power wifi…

New version ESP8266-S1 low cost low power wifi module
Buy samples from Amazon US :https://www.amazon.com/ESP8266-Module-Control-Wireless-ESP8266-S1/dp/B078SWH51L/ref=sr_1_1?ie=UTF8&qid=1517024019&sr=8-1&keywords=esp8266-s1