ESP8266 ESP-12 NodeMcu Lua WeMos D1 Mini WiFi Dev Kit Development Board Module
2,49 €
Open Tools→Board:xxx→Boards Manager and install esp8266 by ESP8266. This is D1 mini, it is a mini WIFI board based on ESP-8266EX. hope you could understand. Installing with Boards Manager. you can always get the latest version of it.
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