ESP8266 Lolin mit Arduino

Wemos D1 mini is a simple wifi board. It has 9 digital pins but only 1 analog pin! All of the IO pins run at 3.3V. Pinout>> https://www.wemos.cc/en/latest/d1/d1_mini_lite.html

Programming the ESP8266 from the Arduino IDE

add link to board manager URL

To use the Wemos D1 board you have to add link to bard manager URL:

Menu: Preferences --> Additional Boards Manager URLs: https://arduino.esp8266.com/stable/package_esp8266com_index.json,https://raw.githubusercontent.com/damellis/attiny/ide-1.6.x-boards-manager/package_damellis_attiny_index.json

For using ESP8266 with Arduino, you can also use the shifter.io desktop App or any other MQTT Broker.