#include <LiquidCrystal_I2C.h>
#include "DHTesp.h"
#include <WiFi.h>
#include <ThingSpeak.h>;
#include <HTTPClient.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);
const int DHT_PIN = 13;
HTTPClient http;
DHTesp dhtSensor;
const char * myWriteAPIKey = "I7CI7S14Y4DBTZ2U";
unsigned long myChannelNumber = 2531978; //Replace it with your channel ID
void setup() {
// put your setup code here, to run once:
Serial.begin(9600);
//Serial.print("Connecting to WiFi");
//WiFi.begin("Wokwi-GUEST", "", 6);
// while (WiFi.status() != WL_CONNECTED) {
// delay(100);
// Serial.print(".");
// }
// Serial.println(" Connected!");
lcd.init();
lcd.backlight();
dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}
void loop() {
String urlThingSpeak = "https://api.thingspeak.com/update?api_key=I7CI7S14Y4DBTZ2U&field1=";
TempAndHumidity data = dhtSensor.getTempAndHumidity();
Serial.println("Temp: " + String(data.temperature, 2) + "°C");
Serial.println("Humidity: " + String(data.humidity, 1) + "%");
Serial.println("---");
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("Temp: " + String(data.temperature, 2) + " C");
lcd.setCursor(0, 1);
lcd.print("Humidity: " + String(data.humidity, 1) + "%");
urlThingSpeak += String(data.temperature, 2) + "&field2=" + String(data.humidity, 1);
Serial.println(urlThingSpeak);
HTTPClient http;
http.begin(urlThingSpeak);
int httpCode = http.GET();
if (httpCode > 0) {
Serial.println("Update successful");
} else {
Serial.print("Error code: ");
Serial.println(httpCode);
}
delay(1000); // Wait for a new reading from the sensor (DHT22 has ~0.5Hz sample rate)
}