// channel id : 2226105
//channel api key : 5ZZNFKTB60NEJIV9
#include <WiFi.h>
#include "DHTesp.h"
#include "ThingSpeak.h"
const int DHT_PIN = 15;
const int LED_RED = 13;
const int LED_GREEN = 14;
const char* WIFI_NAME = "Wokwi-GUEST";
const char* WIFI_PASSWORD = "";
const int myChannelNumber =2378452;
const char* myApiKey = "WEOB9Z34NGGROCMR";
const char* server = "api.thingspeak.com";
DHTesp dhtSensor;
WiFiClient client;
void setup() {
Serial.begin(115200);
dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
pinMode(LED_GREEN, OUTPUT);
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() {
TempAndHumidity data = dhtSensor.getTempAndHumidity();
ThingSpeak.setField(1,data.temperature);
ThingSpeak.setField(2,data.humidity);
if (data.temperature > 40 && data.temperature < 80 ) {
digitalWrite(LED_RED, HIGH);
delay(100);
// digitalWrite(LED_RED, LOW);
// delay(100);
}
else if(data.temperature < 40){
digitalWrite(LED_GREEN, HIGH);
delay(100);
// digitalWrite(LED_GREEN, LOW);
// delay(100);
}
int x = ThingSpeak.writeFields(myChannelNumber,myApiKey);
Serial.println("Temp: " + String(data.temperature, 2) + "°C");
Serial.println("Humidity: " + String(data.humidity, 1) + "%");
if(x == 200){
Serial.println("Data pushed successfull");
}else{
Serial.println("Push error" + String(x));
}
Serial.println("---");
delay(10000);
}