Mendeteksi Kekeruhan Air Menggunakan Mikrokontroler Arduino Nano Dengan Sensor Light Dependent Resistor (LDR) Dan Light Emittin Gdioda (LED) Super Bright Berbasis Komunikasi Data Online

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LAMPIRAN

#include <gprs.h>

#define TIMEOUT 5000

#define LED 6

//NO TELPON 082167527652

//NO AXIS 083199013494

//085206012927

int pertama,kedua,ketiga;

float num,NTU;

char cstr[222];

String str,gabung;

//Variable to hold last line of serial output from SIM800

char currentLine[500] = "";

int currentLineIndex = 0;

//Boolean to be set to true if message notificaion was found and next

//line of serial output is the actual SMS message content

bool nextLineIsMessage = false;

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void urut(){//Fungsi Sorting pembacaan nilai sensor

if(analogRead(A5)>analogRead(A6)){

pertama=analogRead(A5);kedua=analogRead(A6);ketiga=analog Read(A7);

}

else{

}

else{

}

else{

}else{

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}

else{

}else{

}

NTU=(13.746*kedua) - 6034.4;

}

void setup() {

pinMode (LED , OUTPUT);

Serial.begin(9600);

digitalWrite (LED, HIGH);

while(!Serial);

Serial.println("Starting SIM800 Auto Read SMS");

gprs.preInit();

delay(1000);

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Serial.print("init error\r\n");

}

//Set SMS mode to ASCII

if(0 != gprs.sendCmdAndWaitForResp("AT+CMGF=1\r\n", "OK", TIMEOUT)) {

ERROR("ERROR:CNMI");

return;

}

//Start listening to New SMS Message Indications

if(0 !=

gprs.sendCmdAndWaitForResp("AT+CNMI=1,2,0,0,0\r\n", "OK", TIMEOUT)) {

ERROR("ERROR:CNMI");

return;

}

Serial.println("Inisialisasi Sim800l berhasil");

//gprs.sendSMS ("083199013494","Inisialisasi selesai");

gprs.sendSMS ("082299929228","Inisialisasi selesai");

//Untuk indikator Led inisialisasi sim800l

digitalWrite(LED,0);

delay(500);

delay(1000);

delay(1);

}

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int waktu=millis() / 1000;//millis per 1000 berarti perdetik

if (waktu%30==1){//setiap 30 detik mengirim sms notifikasi

urut();

num = NTU;

str = String(num);

String a="Nilai Baca Kekeruhan airnya: ";

gabung=a + num;

str = String(gabung);

Serial.print(str);

str.toCharArray(cstr,333);

Serial.println(cstr);

gprs.sendSMS ("082299929228",cstr);

delay(500);

delay(1000);

delay(1);

}

urut();

Serial.print(waktu);Serial.print(" || ");Serial.println(NTU);

delay(1000);

//If there is serial output from SIM800// Pesan masuk

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gprs.serialSIM800.read();

//Read each character from serial output until \r or \n is reached (which denotes end of line)

if(lastCharRead == '\r' || lastCharRead == '\n'){

String lastLine = String(currentLine);

//If last line read +CMT, New SMS Message Indications was received.

//Hence, next line is the message content.

if(lastLine.startsWith("+CMT:")){

Serial.println(lastLine);

nextLineIsMessage = true;

} else if (lastLine.length() > 0) {

if(nextLineIsMessage) {

Serial.println(lastLine);

// ########## MEMBACA KONTEN SMS DAN MENCARI+MENGARTIKAN KONTEN SMS KE PROGRAM #########

//Tampilkan rata" jika menerima pesan Data

if(lastLine.indexOf("Data") >= 0){

urut();

num = NTU;

str = String(num);

String a="Nilai Baca Kekeruhan airnya: ";

gabung=a + num;

str = String(gabung);

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str.toCharArray(cstr,333);

Serial.println(cstr);

gprs.sendSMS

("082299929228",cstr);

delay(1000);

delay(500);

delay(1);

}

nextLineIsMessage = false;

}

//Clear char array for next line of read

for( int i = 0; i < sizeof(currentLine); ++i ) {

currentLine[i] = (char)0;

}

currentLineIndex = 0;

} else {

currentLine[currentLineIndex++] = astCharRead;

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LAMPIRAN

HASIL UJI COBA SENSOR MENGGUNAKAN SAMPEL AIR

NO WAKTU

JENIS AIR

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