// MONITORING SENSOR DS18B20 THINKSPEAK

#include <OneWire.h> // library
#include <DallasTemperature.h>
#define ONE_WIRE_BUS D2 // pin arduino

OneWire oneWire(ONE_WIRE_BUS); // agar wire yg di inlude agar dapat berfungsi
DallasTemperature sensors(&oneWire); // penamaan sensor Ds18b20 dengan nama sensors

#include "ThingSpeak.h"
#include "secrets.h"
#include <ESP8266WiFi.h>

char ssid[] = "z";   // your network SSID (name) 
char pass[] = "a1b2c3d4e5";   // your network password
int keyIndex = 0;            // your network key Index number (needed only for WEP)
WiFiClient  client;

unsigned long myChannelNumber = 1193196;
const char * myWriteAPIKey = "UF5ZEHU6GOSM7A0I";

int number = 0;

void setup() {
  Serial.begin(115200);  // Initialize serial
  WiFi.mode(WIFI_STA); 
  ThingSpeak.begin(client);  // Initialize ThingSpeak
 // dht.begin();
  sensors.begin(); // agar sensor berfungsi
}

void loop() {
// Connect or reconnect to WiFi
 
  if(WiFi.status() != WL_CONNECTED){
    Serial.print("Attempting to connect to SSID: ");
    Serial.println(SECRET_SSID);
    while(WiFi.status() != WL_CONNECTED){
      WiFi.begin(ssid, pass);  // Connect to WPA/WPA2 network. Change this line if using open or WEP network
      Serial.print(".");
      delay(5000);     
    } 
    Serial.println("\nConnected.");
  }

  sensors.requestTemperatures(); // sensornya agar dapat membaca temperatur

  Serial.print("suhu = ");
  Serial.print(sensors.getTempCByIndex(0));// agar keluaran dalam derajad celcius
  Serial.println("  *C");
  delay(10000);

  // Write to ThingSpeak. There are up to 8 fields in a channel, allowing you to store up to 8 different
  // pieces of information in a channel.  Here, we write to field 1.
  int x = ThingSpeak.writeField(myChannelNumber, 1, sensors.getTempCByIndex(0), myWriteAPIKey);// ubah t
  
  if(x == 200){
    Serial.println("Temperature update successful.");
  }
  else{
    Serial.println("Problem updating channel. HTTP error code " + String(x));
  }
  delay(20000); // Wait 20 seconds to update the channel again 
  }