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나. 온습도센서 회로도 (테스트 프로그램 용)
역할 아두이노 핀번호
VCC 5V
GND GND
OUT A1
다. 가스감지센서 회로도 (테스트 프로그램 용)
역할 아두이노 핀번호
VCC 5V
GND GND
OUT A0
라. 압력센서 회로도 (테스트 프로그램 용)
역할 아두이노 핀번호
VCC 5V
GND GND
OUT A0