Open mudasar8k opened 7 years ago
`//ItKindaWorks - Creative Commons 2016 //github.com/ItKindaWorks // //Requires PubSubClient found here: https://github.com/knolleary/pubsubclient // //ESP8266 Simple MQTT light controller
//EDIT THESE LINES TO MATCH YOUR SETUP
const char ssid = "SSID"; const char password = "PASSQWORD"; const char mqtt_username = "MQTT ID "; const char mqtt_password = "MQTTPASS";
//LED on ESP8266 GPIO5 const int lightPin = 5;
//topic to subscribe to for the light char* lightTopic = "/house/light1";
//topic to publish to confirm that the light has been turned on for the python script to log char* lightConfirmTopic = "/house/light1confirm";
// Callback function header void callback(char topic, byte payload, unsigned int length);
WiFiClient wifiClient; PubSubClient client(MQTT_SERVER, 1883, callback, wifiClient);
void setup() { //initialize the light as an output and set to LOW (off) pinMode(lightPin, OUTPUT); digitalWrite(lightPin, LOW);
//start the serial line for debugging
Serial.begin(115200);
delay(100);
//start wifi subsystem
WiFi.begin(ssid, password);
//attempt to connect to the WIFI network and then connect to the MQTT server
reconnect();
//wait a bit before starting the main loop
delay(2000);
}
void loop(){
//reconnect if connection is lost
if (!client.connected() && WiFi.status() == 3)
{reconnect();}
//maintain MQTT connection
client.loop();
//MUST delay to allow ESP8266 WIFI functions to run
delay(10);
}
//MQTT callback void callback(char topic, byte payload, unsigned int length) {
//convert topic to string to make it easier to work with
String topicStr = topic;
//Print out some debugging info
Serial.println("Callback update.");
Serial.print("Topic: ");
Serial.println(topicStr);
//turn the light on if the payload is '1' and publish to the confirmation topic so the python script can log it
if(payload[0] == '1'){
digitalWrite(lightPin, HIGH);
client.publish(lightConfirmTopic, "On");
}
//turn the light off if the payload is '0' and publish to the confirmation topic so the python script can log it
else if (payload[0] == '0'){
digitalWrite(lightPin, LOW);
client.publish(lightConfirmTopic, "Off");
}
}
//networking functions
void reconnect() {
//attempt to connect to the wifi if connection is lost
if(WiFi.status() != WL_CONNECTED){
//debug printing
Serial.print("Connecting to ");
Serial.println(ssid);
//loop while we wait for connection
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
//print out some more debug once connected
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
//make sure we are connected to WIFI before attemping to reconnect to MQTT
if(WiFi.status() == WL_CONNECTED){
// Loop until we're reconnected to the MQTT server
while (!client.connected()) {
Serial.print("Attempting MQTT connection...");
// Generate client name based on MAC address and last 8 bits of microsecond counter
String clientName;
clientName += "esp8266-";
uint8_t mac[6];
WiFi.macAddress(mac);
clientName += macToStr(mac);
//if connected, subscribe to the topic(s) we want to be notified about
if (client.connect((char*) clientName.c_str(), mqtt_username, mqtt_password)) {
Serial.print("\tMTQQ Connected");
client.subscribe(lightTopic);
}
//otherwise print failed for debugging
else{Serial.println("\tFailed."); abort();}
}
}
}
//generate unique name from MAC addr String macToStr(const uint8_t* mac){
String result;
for (int i = 0; i < 6; ++i) { result += String(mac[i], 16);
if (i < 5){
result += ':';
}
}
return result; }
`
I`m doing an exam, you just saved my life
Hi, I am using mqtt server with username and password. Can you please include mqtt username,pass option in your doorNode.ino sketch?
Thanks in advance,