#include <ESP32Servo.h>
#include <WiFi.h>
#include "ThingSpeak.h"

const char* ssid = "Wokwi-GUEST";
const char* pass = "";

WiFiClient client;

unsigned long myChannelNumber = 1;
const char* myWriteAPIKey = "EDZF03MUM71S4SMJ";
const char* server = "api.thingspeak.com";

unsigned long lastTime = 0;
unsigned long timerDelay = 30000;

const float BETA = 3950; // should match the Beta Coefficient of the thermistor
const int pinR = 15; //lampu merah
const int pinG = 2; //lampu hijau
const int pinB = 4; //lampu biru
int inputPin = 32;               // choose the input pin (for PIR sensor)
int pirState = LOW;             // we start, assuming no motion detected
int val = 0;
int pos = 0;

#define SERVO 25

Servo servo;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  WiFi.begin(ssid, pass);
  while(WiFi.status() != WL_CONNECTED){
    delay(100);
    Serial.print(".");
  }
  Serial.println("WiFi Connected !");
  Serial.println(WiFi.localIP());

  WiFi.mode(WIFI_STA);

  ThingSpeak.begin(client);
  //NTC
  analogReadResolution(10);
  //LED
  pinMode(pinR, OUTPUT);
  pinMode(pinG, OUTPUT);
  pinMode(pinB, OUTPUT);
  //PIR
  pinMode(inputPin, INPUT);     // declare sensor as input
  pinMode(SERVO, OUTPUT);
  servo.attach(SERVO);
  servo.write(0);
}

void loop() {
  // put your main code here, to run repeatedly:
  int analogValue = analogRead(35);
  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
  Serial.print("Temperature: ");
  Serial.print(celsius);
  Serial.println(" ℃");
  delay(1000);
  ThingSpeak.setField(1, celsius);
  int x = ThingSpeak.writeFields(myChannelNumber, myWriteAPIKey);
  if(x == 200){
    Serial.println("Channel sudah ter-update !");
  }else {
    Serial.println("Terjadi Masalah" + String(x));
  }
  
  val = digitalRead(inputPin);  // read input value
  if (val == HIGH) {
    if (pirState == LOW) {
      // we have just turned on
      Serial.println("Motion detected!");
      servo.write(120);
      // We only want to print on the output change, not state
      pirState = HIGH;
    }
  } else {
    if (pirState == HIGH) {
      // we have just turned of
      Serial.println("Motion ended!");
      servo.write(0);
      // We only want to print on the output change, not state
      pirState = LOW;
    }
  }
  if (celsius < 0){
  analogWrite(pinR, LOW);
  analogWrite(pinG, LOW);
  analogWrite(pinB, HIGH);
  delay(500);
  }
  else if (celsius == 0; celsius <= 38 ) {
  analogWrite(pinR, LOW);
  analogWrite(pinG, HIGH);
  analogWrite(pinB, LOW);
  delay(500);
  
  }
  else if (celsius > 38) {
  analogWrite(pinR, HIGH);
  analogWrite(pinG, LOW);
  analogWrite(pinB, LOW);
  delay(500);
  
  }
}