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Programming the esp8266 (nodemcu) with the arduino ide
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Interfacing NodeMCU with DS1631 Sensor and I2C LCD - Simple Projects

ESP8266 NodeMCU 16×2 LCD Interface | Circuits4you.com

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Nodemcu pinout | Circuits4you.com

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Programming the ESP8266 (NodeMCU) with the Arduino IDE - CodeProject