Type-C/Micro USB ESP8266 ESP-12 WeMos D1 Mini WIFI Development Board NodeMCU Lua
ab 2,37 €
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. Boards Manager. 11 digital input/output pins, all pins have interrupt/pwm/I2C/one-wire.
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