Pin-Belegung eines ESP8266 (D1 mini) - SmartHome yourself
ESP8266 | alselectro
WeMos D1 R2 WiFi ESP8266 Board - 99Tech
GitHub - kiranshashiny/Wemos-D1-mini-Blink-LED: This is my first blog on WEMOS D1 mini, and what were the various parameters like board manager etc are listed here.
Wemos D1 pins - Installation & Troubleshooting - Arduino Forum
LOLIN D1 mini — WEMOS documentation
Programming the ESP8266 WeMos-D1R2 Using Arduino Software/IDE : 15 Steps - Instructables