| 인천전자마이스터고등학교 ············································································································· 12 9. 실습사진 <9월> 블록도 구상하기 부품 조사하기 <10-11월> TDS센서 회로 구성 앱 인벤터로 어플 구상 PH센서 회로 구성 <11-12월> 온도 센서 값 확인 수돗물 PH 측정