Project_10611_Code_Final

#include <WiFi.h>
#include <TinyGPSPlus.h>
#include <WiFiClientSecure.h>
#include <UniversalTelegramBot.h>

#define redLED   4
#define trigPin  5
#define echoPin  18
#define maxTrash 6 // in CM
#define SOUND_SPEED 0.034 // in CM/Sec
#define WIFI_SSID "network"
#define WIFI_PASSWORD "123456789"
#define BOT_TOKEN "5758548495:AAHYaV3NnmsFQo_1UjzBgcimSttmsZDp5Os"
String chat_id = "660897003";

int flag_ff = 0;
String lon;
String latt;
bool flag = 0;
long duration;
float distanceCm;
bool Start = false;
String stringMsg = "";
char messageBuffer[70];
//unsigned long bot_lasttime;
//const unsigned long BOT_MTBS = 1000;
//unsigned long interval = 60000; // 1 min

unsigned long previousMillis = 0;     // will store last time LED was updated

const long interval = 10000;           // interval at which to blink (milliseconds)



TinyGPSPlus gps;
WiFiClientSecure secured_client;
UniversalTelegramBot bot(BOT_TOKEN, secured_client);

void setup() {
  Serial.begin(9600);
  Serial2.begin(9600);
  pinMode(trigPin, OUTPUT);
  pinMode(echoPin, INPUT);
  pinMode(redLED, OUTPUT);
  digitalWrite(redLED, LOW);
  digitalWrite(trigPin, LOW);
  connectToWiFi();
  bot.sendMessage(chat_id, "Project Online");
  delay(20000);
}


void loop() {
  readUS_Data();
  readGPS_Data();
  if (distanceCm < 10) {
    digitalWrite(redLED, HIGH);
    sendTelegramMessage();
    flag_ff = 1;
  }
  else if (distanceCm >= 10 && flag_ff == 1) {
    flag_ff = 0;
    digitalWrite(redLED, LOW);
    bot.sendMessage(chat_id, "This Trash is Empty, Thank You.");
  }
  else if (distanceCm >= 10 && flag_ff == 0) {
    digitalWrite(redLED, LOW);
  }
}

void sendTelegramMessage() {
  bot.sendMessage(chat_id, "This Trash is Full");
  delay(500);
  bot.sendMessage(chat_id, messageBuffer);
  delay(10000);//interval
}

void readUS_Data() {
  if (millis() - previousMillis >= interval) {
    // save the last time you blinked the LED
    previousMillis = millis();

    // Clears the trigPin
    digitalWrite(trigPin, LOW);
    delayMicroseconds(2);
    // Sets the trigPin on HIGH state for 10 micro seconds
    digitalWrite(trigPin, HIGH);
    delayMicroseconds(10);
    digitalWrite(trigPin, LOW);

    // Reads the echoPin, returns the sound wave travel time in microseconds
    duration = pulseIn(echoPin, HIGH);

    // Calculate the distance
    distanceCm = duration * SOUND_SPEED / 2;
    Serial.print("Distance (cm): ");
    Serial.println(distanceCm);
  }
}

void connectToWiFi() {
  Serial.print("Connecting to Wifi SSID ");
  Serial.print(WIFI_SSID);
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  secured_client.setCACert(TELEGRAM_CERTIFICATE_ROOT);
  while (WiFi.status() != WL_CONNECTED)
  {
    Serial.print(".");
    delay(500);
  }
  Serial.print("\n");
  Serial.print("WiFi connected. IP address: ");
  Serial.println(WiFi.localIP());


  Serial.print("Retrieving time: ");
  configTime(0, 0, "pool.ntp.org");
  time_t now = time(nullptr);
  while (now < 24 * 3600)
  {
    Serial.print(".");
    delay(100);
    now = time(nullptr);
  }
  Serial.println(now);

}

void readGPS_Data() {
  while (Serial2.available() > 0)
    if (gps.encode(Serial2.read()))
      displayInfo();
  if (millis() > 5000 && gps.charsProcessed() < 10) {
    Serial.println(F("No GPS detected: check wiring."));
    while (true);
  }
}

void displayInfo() {
  Serial.print(F("Location: "));
  if (gps.location.isValid()) {
    lon = String(gps.location.lng(), 6);
    latt = String(gps.location.lat(), 6);
    Serial.print("Lat: ");
    Serial.print(latt);
    Serial.print(F(","));
    Serial.print("Lng: ");
    Serial.print(lon);
    Serial.println();
    stringMsg = "http://maps.google.com/maps?&z=15&mrt=yp&t=k&q=" + latt + "+" + lon;
    stringMsg.toCharArray(messageBuffer, 70);
  }
  else  {
    Serial.println(F("INVALID"));
    stringMsg = "http://maps.google.com/maps?&z=15&mrt=yp&t=k&q=21.861659+39.067037";// Location if GPS no signal
    stringMsg.toCharArray(messageBuffer, 70);
  }
}