#if defined(ESP8266)
#include <ESP8266WiFi.h>
#elif defined(ESP32)
#include <WiFi.h>
#endif
#include "DHTesp.h"
#include "ThingsBoard.h"
#include <LiquidCrystal_I2C.h>
#define CURRENT_FIRMWARE_TITLE "TEST"
#define CURRENT_FIRMWARE_VERSION "1.0.0"
#define WIFI_SSID "Wokwi-GUEST"
#define WIFI_PASSWORD ""
// See https://thingsboard.io/docs/getting-started-guides/helloworld/
// to understand how to obtain an access token
#define TOKEN "Pq7oicNclQsNoPbKUfoo"
#define THINGSBOARD_SERVER "demo.thingsboard.io"
// Baud rate for debug serial
#define SERIAL_DEBUG_BAUD 115200
const int DHT_PIN = 15;
DHTesp dhtSensor;
// Initialize ThingsBoard client
WiFiClient espClient;
// Initialize ThingsBoard instance
ThingsBoard tb(espClient);
// the Wifi radio's status
int status = WL_IDLE_STATUS;
LiquidCrystal_I2C lcd(0x27, 16, 2);
byte SimbolDerajat[] = {
B00110,
B01001,
B01001,
B00110,
B00000,
B00000,
B00000,
B00000,
};
void InitWiFi()
{
Serial.println("Connecting to AP ...");
// attempt to connect to WiFi network
WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("Connected to AP");
}
void reconnect() {
// Loop until we're reconnected
status = WiFi.status();
if ( status != WL_CONNECTED) {
WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("Connected to AP");
}
}
void setup() {
lcd.init();
lcd.createChar(0, SimbolDerajat);
lcd.backlight();
lcd.setCursor(0, 0);
lcd.print("Hussein ali");
lcd.setCursor(0, 1);
lcd.print(" Project");
delay(4000);
lcd.clear();
// initialize serial for debugging
Serial.begin(SERIAL_DEBUG_BAUD);
Serial.println();
InitWiFi();
dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}
void loop() {
delay(1000);
if (WiFi.status() != WL_CONNECTED) {
reconnect();
}
if (!tb.connected()) {
// Connect to the ThingsBoard
Serial.print("Connecting to: ");
Serial.print(THINGSBOARD_SERVER);
Serial.print(" with token ");
Serial.println(TOKEN);
if (!tb.connect(THINGSBOARD_SERVER, TOKEN)) {
Serial.println("Failed to connect");
return;
}
}
Serial.println("Sending data...");
// Uploads new telemetry to ThingsBoard using MQTT.
// See https://thingsboard.io/docs/reference/mqtt-api/#telemetry-upload-api
// for more details
TempAndHumidity data = dhtSensor.getTempAndHumidity();
tb.sendTelemetryFloat("temperature", data.temperature);
tb.sendTelemetryFloat("humidity", data.humidity);
Serial.print("Temp : ");
Serial.print(data.temperature);
Serial.print(" Humidity : ");
Serial.println(data.humidity);
//lcd.setCursor(0, 0);
//lcd.print("Temp :" + String(data.temperature));
//lcd.write(0);
//lcd.print("C");
//lcd.setCursor(0, 1);
//lcd.print("Humidity:" + String(data.humidity) + "%");
float H; //Humidity value
float T; //Temperature value
int buzzer = 12;
pinMode(buzzer, OUTPUT);
H = data.humidity;
T = data.temperature;
if(H >= 65.00 && T >= 25.00){
lcd.println(" Too warm! ");
lcd.setCursor(0, 1);
lcd.println("Cool down!");
lcd.setCursor(0, 0);
digitalWrite(buzzer, 1); tone(buzzer, 500, 100);
delay(400);
digitalWrite(buzzer, 0); tone(buzzer, 500, 100);
delay(400);
digitalWrite(buzzer, 1); tone(buzzer, 500, 100);
delay(400);
digitalWrite(buzzer, 0); tone(buzzer, 500, 100);
delay(400);
}
else{
//*If humidity is lower than 70% &
//temperature is lower than 30 degrees Celsius
//then it will show on LCD „Temp. & hum. are in normal limits”*/
lcd.println("Temp. & hum. are");
lcd.setCursor(0, 1);
lcd.println("in normal limits");
lcd.setCursor(0, 0);
digitalWrite(buzzer, 0);
}
if(H < 65.00 && T < 15.00){
lcd.println("Be ware! ");
lcd.setCursor(0, 1);
lcd.println("Temp. too Low! ");
lcd.setCursor(0, 0);
digitalWrite(buzzer, 1); tone(buzzer, 400, 500);
delay(400);
digitalWrite(buzzer, 0); tone(buzzer, 400, 500);
delay(400);
}
if(H < 20.00 && T < 25.00){
lcd.println(" Too warm! ");
lcd.setCursor(0, 1);
lcd.println("Hum. too Low! ");
lcd.setCursor(0, 0);
digitalWrite(buzzer, 1); tone(buzzer, 500, 100);
delay(400);
digitalWrite(buzzer, 0); tone(buzzer, 500, 100);
delay(400);
digitalWrite(buzzer, 1); tone(buzzer, 500, 100);
delay(400);
digitalWrite(buzzer, 0); tone(buzzer, 500, 100);
delay(400);
}
if(H < 20.00 && T < 15.00){
lcd.println(" Too warm! ");
lcd.setCursor(0, 1);
lcd.println("Temp&Hum too Low! ");
lcd.setCursor(0, 0);
digitalWrite(buzzer, 1); tone(buzzer, 500, 100);
delay(400);
digitalWrite(buzzer, 0); tone(buzzer, 500, 100);
delay(400);
digitalWrite(buzzer, 1); tone(buzzer, 500, 100);
delay(400);
digitalWrite(buzzer, 0); tone(buzzer, 500, 100);
delay(400);
}
/*If either humidity is lower than 70%, but
temperature is higher than 30 degrees Celsius,
then it will show on LCD „Be ware! Temp. too high” or
humidity is higher than 70%, but
temperature is lower than 30 degrees Celsius, then
it will show on LCD „Be ware! Hum. too high”*/
if(H < 65.00 && T >= 25.00){
lcd.println("Be ware! ");
lcd.setCursor(0, 1);
lcd.println("Temp. too high! ");
lcd.setCursor(0, 0);
digitalWrite(buzzer, 1); tone(buzzer, 400, 500);
delay(400);
digitalWrite(buzzer, 0); tone(buzzer, 400, 500);
delay(400);
}
if(H >= 65.00 && T > 15.00){
lcd.println("Be ware! ");
lcd.setCursor(0, 1);
lcd.println("Hum. too high! ");
lcd.setCursor(0, 0);
digitalWrite(buzzer, 1); tone(buzzer, 400, 700);
delay(400);
digitalWrite(buzzer, 0); tone(buzzer, 400, 700);
delay(400);
}
tb.loop();
tb.loop();
}