69 lines
1.4 KiB
C++
69 lines
1.4 KiB
C++
#include <EEPROM.h>
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#include <ESP8266WiFi.h>
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#include <PubSubClient.h>
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#include <Wire.h>
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// Connect to the WiFi
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const char* ssid = "Arubaruba";
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const char* password = "Keepitsimplestupid1";
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const char* mqtt_server = "192.168.178.50";
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WiFiClient espClient;
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PubSubClient client(espClient);
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const byte ledPin = 13; // Pin with LED on Adafruit Huzzah
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void callback(char* topic, byte* payload, unsigned int length) {
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Serial.print("Message arrived [");
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Serial.print(topic);
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Serial.print("] ");
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for (int i=0;i<length;i++) {
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char receivedChar = (char)payload[i];
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Serial.print(receivedChar);
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if (receivedChar == '0')
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// ESP8266 Huzzah outputs are "reversed"
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digitalWrite(ledPin, HIGH);
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if (receivedChar == '1')
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digitalWrite(ledPin, LOW);
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}
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Serial.println();
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}
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void reconnect() {
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// Loop until we're reconnected
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while (!client.connected()) {
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Serial.print("Attempting MQTT connection...");
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// Attempt to connect
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if (client.connect("ESP8266 Client")) {
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Serial.println("connected");
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// ... and subscribe to topic
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client.subscribe("ledStatus");
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} else {
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Serial.print("failed, rc=");
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Serial.print(client.state());
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Serial.println(" try again in 5 seconds");
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// Wait 5 seconds before retrying
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delay(5000);
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}
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}
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}
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void setup()
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{
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Serial.begin(115200);
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client.setServer(mqtt_server, 1883);
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client.setCallback(callback);
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pinMode(ledPin, OUTPUT);
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}
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void loop()
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{
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if (!client.connected()) {
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reconnect();
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}
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client.loop();
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}
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