#include
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"
#include "DHT.h"
#define WLAN_SSID "Vishnu"
#define WLAN_PASS "1234567890"
#define AIO_SERVER "io.adafruit.com"
#define AIO_SERVERPORT 1883 // use 8883 for SSL
#define AIO_USERNAME "UNIQUEVISHNU"
#define AIO_KEY "aio_cCSZ27kRZDZ5J22YcEgRghnyZj0o"
#define DHTPIN D3
#define DHTTYPE DHT11
DHT dht(DHTPIN, DHTTYPE);
WiFiClient client;
Adafruit_MQTT_Client mqtt(&client,
AIO_SERVER,
AIO_SERVERPORT,
AIO_USERNAME,
AIO_KEY);
Adafruit_MQTT_Publish temperature = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/temp");
Adafruit_MQTT_Publish humidity = Adafruit_MQTT_Publish(&mqtt, AIO_USERNAME "/feeds/hum");
void MQTT_connect();
void setup() {
Serial.begin(115200);
dht.begin();
delay(10);
Serial.println(F("Adafruit MQTT demo"));
// Connect to WiFi access point.
Serial.println(); Serial.println();
Serial.print("Connecting to ");
Serial.println(WLAN_SSID);
WiFi.begin(WLAN_SSID, WLAN_PASS);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println();
Serial.println("WiFi connected");
Serial.println("IP address: "); Serial.println(WiFi.localIP());
}
uint32_t x=0;
void loop() {
MQTT_connect();
float h = dht.readHumidity();
float t = dht.readTemperature();
Serial.print(F("\nTemperature: "));
Serial.print(t);
Serial.print(F("\nHumidity: "));
Serial.print(h);
temperature.publish(t);
humidity.publish(h);
delay(60000);
}
void MQTT_connect() {
int8_t ret;
if (mqtt.connected()) {
return;
}
Serial.print("Connecting to MQTT... ");
uint8_t retries = 3;
while ((ret = mqtt.connect()) != 0) { // connect will return 0 for connected
Serial.println(mqtt.connectErrorString(ret));
Serial.println("Retrying MQTT connection in 5 seconds...");
mqtt.disconnect();
delay(5000);
retries--;
if (retries == 0) {
while (1);
}
}
Serial.println("MQTT Connected!");
}
