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May 13, 2017 18:22
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| #include <ESP8266WiFi.h> | |
| #include <PubSubClient.h> | |
| //WIFI | |
| const char* wifi_ssid = "wifi"; | |
| const char* wifi_password = "wifi-password"; | |
| //MQTT | |
| const char* mqtt_server = "mqtt server ip"; | |
| const char* mqtt_user = "mqtt username"; | |
| const char* mqtt_password = "mqtt password"; | |
| const char* clientID = "Doorbell"; | |
| //VARS | |
| const char* doorbell_topic = "home/outdoors/doorbell"; | |
| const int doorbellPin = D3; | |
| int doorbellState = 0; | |
| WiFiClient espClient; | |
| PubSubClient client(espClient); | |
| void setup() { | |
| Serial.begin(115200); | |
| pinMode(doorbellPin, INPUT_PULLUP); | |
| pinMode(LED_BUILTIN, OUTPUT); // Initialize the LED_BUILTIN pin as an output | |
| setup_wifi(); | |
| client.setServer(mqtt_server, 1883); | |
| } | |
| void blink_now(){ | |
| digitalWrite(LED_BUILTIN, LOW); | |
| delay(1000); | |
| digitalWrite(LED_BUILTIN, HIGH); | |
| delay(1000); | |
| } | |
| void setup_wifi() { | |
| //Turn off Access Point | |
| WiFi.mode(WIFI_STA); | |
| delay(10); | |
| // We start by connecting to a WiFi network | |
| Serial.println(); | |
| Serial.print("Connecting to "); | |
| Serial.println(wifi_ssid); | |
| WiFi.begin(wifi_ssid, wifi_password); | |
| while (WiFi.status() != WL_CONNECTED) { | |
| delay(500); | |
| Serial.print("."); | |
| blink_now(); | |
| } | |
| Serial.println(""); | |
| Serial.println("WiFi connected"); | |
| Serial.println("IP address: "); | |
| Serial.println(WiFi.localIP()); | |
| } | |
| void reconnect() { | |
| // Loop until we're reconnected | |
| while (!client.connected()) { | |
| Serial.print("Attempting MQTT connection..."); | |
| blink_now(); | |
| // Attempt to connect | |
| if (client.connect(clientID, mqtt_user, mqtt_password)) { | |
| Serial.println("connected"); | |
| // Once connected, publish an announcement... | |
| client.publish(doorbell_topic, "Doorbell connected to MQTT"); | |
| } else { | |
| Serial.print("failed, rc="); | |
| Serial.print(client.state()); | |
| Serial.println(" try again in 5 seconds"); | |
| // Wait 5 seconds before retrying | |
| delay(5000); | |
| } | |
| } | |
| } | |
| void loop() { | |
| if (!client.connected()) { | |
| reconnect(); | |
| } | |
| client.loop(); | |
| doorbellState = digitalRead(doorbellPin); | |
| if ( doorbellState == LOW ) { | |
| // Put your code here. e.g. connect, send, disconnect. | |
| Serial.println("Doorbell is pressed!"); | |
| client.publish(doorbell_topic, "on", true); | |
| blink_now(); | |
| delay( 5000 ); | |
| } | |
| } |
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