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// Include necessary libraries
#include <AntaresESPMQTT.h> // Library initiation for Antares ESP32 MQTT
#include "DHT.h" // Include the DHT sensor library
#define DHTPIN 14 // Define the pin number for the DHT sensor (connected to pin 14)
#define DHTTYPE DHT11 // Define the DHT sensor type as DHT11
#define pushButtonPin 32 // Define the pin number for the push button (connected to pin 32)
#define ledPin 12 // Define the pin number for the LED (connected to pin 12)
#define ACCESSKEY "YOUR-ACCESS-KEY" // Replace with your Antares access key
#define WIFISSID "YOUR-WIFI-SSID" // Replace with your WiFi SSID
#define PASSWORD "YOUR-WIFI-PASSWORD" // Replace with your WiFi password
#define projectName "YOUR-APPLICATION-NAME" // Replace with your Antares application name
#define deviceName "YOUR-DEVICE-NAME" // Replace with your Antares device name
AntaresESPMQTT antares(ACCESSKEY); // Create an object for interacting with Antares
DHT dht(DHTPIN, DHTTYPE); // Create a DHT object for the DHT sensor
bool ledState = false; // Variable to store the state of the LED (ON or OFF)
bool lastButtonState = false; // Variable to store the previous state of the push button
void setup() {
Serial.begin(115200); // Initialize serial communication with baudrate 115200
antares.setDebug(true); // Enable debug mode for AntaresESP32HTTP (messages will be displayed in the serial monitor)
antares.wifiConnection(WIFISSID, PASSWORD); // Connect to Wi-Fi with the specified SSID and password
antares.setMqttServer();
dht.begin(); // Initialize the DHT sensor
pinMode(pushButtonPin, INPUT_PULLUP); // Set the push button pin as input with internal pull-up resistor
pinMode(ledPin, OUTPUT); // Set the LED pin as output
digitalWrite(ledPin, LOW); // Turn off the LED initially
}
void loop() {
antares.checkMqttConnection();
// Read the current state of the push button
bool currentButtonState = digitalRead(pushButtonPin);
// Check if the button state has changed (button press detected)
if (currentButtonState != lastButtonState && currentButtonState == LOW) {
Serial.println("The button is pressed");
// Toggle state of the LED (ON to OFF or OFF to ON)
ledState = !ledState;
digitalWrite(ledPin, ledState);
// Read temperature and humidity from the DHT sensor
float hum = dht.readHumidity();
float temp = dht.readTemperature();
// Check if the sensor reading is valid
if (isnan(hum) || isnan(temp)) {
Serial.println("Failed to read DHT sensor!");
return;
}
// Print temperature and humidity values to the serial monitor
Serial.println("Temperature: " + (String)temp + " *C");
Serial.println("Humidity: " + (String)hum + " %");
// Add temperature and humidity data to the Antares storage buffer
antares.add("temperature", temp);
antares.add("humidity", hum);
// Send the data from the storage buffer to Antares
antares.publish(projectName, deviceName);
// Add some delay to avoid multiple data sending due to button debouncing
delay(1000);
}
// Update the last button state for the next iteration
lastButtonState = currentButtonState;
}
#define ACCESSKEY "YOUR-ACCESS-KEY" // Replace with your Antares account access key
#define WIFISSID "YOUR-WIFI-SSID" // Replace with your Wi-Fi SSID
#define PASSWORD "YOUR-WIFI-PASSWORD" // Replace with your Wi-Fi password
#define projectName "YOUR-APPLICATION-NAME" // Replace with the Antares application name that was created
#define deviceName "YOUR-DEVICE-NAME" // Replace with the Antares device name that was created