Arduino Wi-Fi Shield using ESP8266 - EasyEDA open source hardware lab
Simon John on Twitter: "Pleased with the #ESP8266 ESP12 breakout boards I made, manufactured by #JLCPCB, designed using #EasyEDA. Also proved that the ESP12-S can run with no external components, just hook
Programming ESP8266 using Arduino IDE - Hackster.io
Design your own ESP Board for Battery Powered IoT Applications