#include <WiFi.h>
#include "ThingSpeak.h"
#define TRIG_PIN1 12
#define ECHO_PIN1 13
#define TRIG_PIN2 14
#define ECHO_PIN2 27

const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber = 2779774;
const char* myApiKey = "Z0JVYNR56GXEQ8YS";

WiFiClient client;


void setup() {
  Serial.begin(115200);

  // Konfigurasi pin sensor 1
  pinMode(TRIG_PIN1, OUTPUT);
  pinMode(ECHO_PIN1, INPUT);

  // Konfigurasi pin sensor 2
  pinMode(TRIG_PIN2, OUTPUT);
  pinMode(ECHO_PIN2, INPUT);
  WiFi.begin(WIFI_NAME, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED){
    delay(1000);
    Serial.println("Wifi not connected");
    }
    Serial.println("Wifi connected !");
    Serial.println("Local IP: " + String(WiFi.localIP()));
    WiFi.mode(WIFI_STA);
    ThingSpeak.begin(client);
}

void loop() {
  float distance1 = readDistance(TRIG_PIN1, ECHO_PIN1);
  float distance2 = readDistance(TRIG_PIN2, ECHO_PIN2);

  ThingSpeak.setField(1, distance1);
  ThingSpeak.setField(2, distance2);
  
  int x = ThingSpeak.writeFields(myChannelNumber,myApiKey);

  Serial.print("Jarak Sensor 1: ");
  Serial.print(distance1);
  Serial.println(" cm");

  Serial.print("Jarak Sensor 2: ");
  Serial.print(distance2);
  Serial.println(" cm");

  Serial.println("----------------------------");
  delay(1000);
}

float readDistance(int trigPin, int echoPin) {
  digitalWrite(trigPin, LOW);
  delayMicroseconds(2);
  digitalWrite(trigPin, HIGH);
  delayMicroseconds(10);
  digitalWrite(trigPin, LOW);

  long duration = pulseIn(echoPin, HIGH);
  float distance = duration * 0.034 / 2; // Konversi ke cm

  return distance;
}