esp8266 / arduino for Temper/Humid censor
esp8266에서 MQTT 프로토콜을 사용해 온/습도 데이터를 측정 결과를 MQTT 브로커로 전송하고
MQTT 브로커로부터 입력이 들어오면 적절한 콜백 함수를 실행하는 코드입니다.
해당 소스코드를 컴파일 후 디바이스에 업로드 하시면 됩니다.
해당 예제에서는 DHT11 센서를 사용한 온습도 데이터 측정과, 서버로부터 입력이 들어올 경우 IR 센서를 통해 특정 값을 보내는 콜백 함수를 사용하고 있습니다. HTTP Client와 같은 추가적인 모듈을 사용할 경우, 추가되는 메모리 사용에 따른 기기(D1 R1) 변경을 고려해야 할 수 있습니다.
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