106 lines
2.3 KiB
C++
106 lines
2.3 KiB
C++
#include <ESP8266WiFi.h>
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#include <PubSubClient.h>
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// WiFi
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const char *ssid = "internet_of_insecure_things";
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const char *wifi_password = "iamnotacrook";
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// MQTT
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const char *clientID = "window_0"; // Unique to this device
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const char *mqtt_server = "mqtt.kitsunehosting.net";
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const char *mqtt_topic = "home/upstairs_lab/actuators/window_0";
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const char *mqtt_username = "admin";
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const char *mqtt_password = "iamnotacrook";
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// Initialise the WiFi and MQTT Client objects
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WiFiClient wifiClient;
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PubSubClient client(mqtt_server, 1883, wifiClient); // 1883 is the listener port for the Broker
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void setup()
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{
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// pinMode(ledPin, OUTPUT);
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// Switch the on-board LED off to start with
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// digitalWrite(ledPin, HIGH);
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// Begin Serial on 115200
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// Remember to choose the correct Baudrate on the Serial monitor!
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// This is just for debugging purposes
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Serial.begin(115200);
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Serial.print("Connecting to ");
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Serial.println(ssid);
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// Connect to the WiFi
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WiFi.begin(ssid, wifi_password);
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// Wait until the connection has been confirmed before continuing
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while (WiFi.status() != WL_CONNECTED)
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{
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delay(500);
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Serial.print(".");
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}
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Serial.println("WiFi connected");
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Serial.print("IP address: ");
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Serial.println(WiFi.localIP());
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// Configure client callback
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client.setCallback(callback);
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}
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void reconnect()
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{
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/* Reconnects to the MQTT Server */
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if (client.connect(clientID, mqtt_username, mqtt_password))
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{
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Serial.println("Connected to MQTT Broker!");
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}
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else
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{
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Serial.println("Connection to MQTT Broker failed...");
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}
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client.publish("test", "0");
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// What to listen for
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client.subscribe("test");
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}
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void callback(char *topic, byte *payload, unsigned int length)
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{
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Serial.print("Message arrived in topic: ");
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Serial.println(topic);
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Serial.print("Message:");
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for (int i = 0; i < length; i++)
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{
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Serial.print((char)payload[i]);
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}
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Serial.println();
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}
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void loop()
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{
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delay(600);
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// digitalWrite(ledPin, HIGH);
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if (client.publish(mqtt_topic, "1"))
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{
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Serial.println("Button pushed and message sent!");
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}
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else
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{
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Serial.println("Message failed to send. Reconnecting to MQTT Broker and trying again");
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reconnect();
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delay(10);
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client.publish(mqtt_topic, "-1");
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}
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tone(5, 1200, 300);
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client.loop(); // Runs cleanup, etc on client
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}
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