Esp8266(Node mcu) FM v1.5 - EasyEDA open source hardware lab
Programming ESP8266 using Arduino IDE - Hackster.io
nodemcu esp8266 - Search - EasyEDA
NodeMCU 4 Channel Relay Module Design using EasyEDA - YouTube
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