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상품 정보 | 가격 | 삭제 |
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아두이노 이산화탄소 CO2 센서 / CM1106(Single) | ||
TOTAL PRICE(수량) 0 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 | #include <SoftwareSerial.h> SoftwareSerial mySerial(13, 11); unsigned char Send_data[4] = {0x11,0x01,0x01,0xED}; unsigned char Receive_Buff[8]; unsigned char recv_cnt = 0; unsigned int PPM_Value; void Send_CMD(void) { unsigned int i; for(i=0; i<4; i++) { mySerial.write(Send_data[i]); delay(1); } } unsigned char Checksum_cal(void) { unsigned char count, SUM=0; for(count=0; count<7; count++) { SUM += Receive_Buff[count]; } return 256-SUM; } void setup() { pinMode(13,INPUT); pinMode(11,OUTPUT); Serial.begin(9600); while (!Serial) ; mySerial.begin(9600); while (!mySerial); } void loop() { Serial.print("Sending..."); Send_CMD(); while(1) { if(mySerial.available()) { Receive_Buff[recv_cnt++] = mySerial.read(); if(recv_cnt ==8){recv_cnt = 0; break;} } } if(Checksum_cal() == Receive_Buff[7]) { PPM_Value = Receive_Buff[3]<<8 | Receive_Buff[4]; Serial.write(" PPM : "); Serial.println(PPM_Value); } else { Serial.write("CHECKSUM Error"); } delay(1000); } | cs |
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