1. #include <Arduino.h>
2. #include <ESP8266WiFi.h>
3. #include <ESP8266WiFiMulti.h>
4. #include <WebSocketsClient.h> //  https://github.com/kakopappa/sinric/wiki/How-to-add-dependency-libraries
5. #include <ArduinoJson.h> // https://github.com/kakopappa/sinric/wiki/How-to-add-dependency-libraries
6. #include <Servo.h>
7.  
8. ESP8266WiFiMulti WiFiMulti;
9. WebSocketsClient webSocket;
10. WiFiClient client;
11. Servo myservo;
12. boolean b;
13.  
14. #define MyApiKey "xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx" // TODO: Change to your sinric API Key. Your API Key is displayed on sinric.com dashboard
15. #define MySSID "mywifi" // TODO: Change to your Wifi network SSID
16. #define MyWifiPassword "password" // TODO: Change to your Wifi network password
17.  
18. #define API_ENDPOINT "http://sinric.com"
19. #define HEARTBEAT_INTERVAL 300000 // 5 Minutes
20.  
21. uint64_t heartbeatTimestamp = 0;
22. bool isConnected = false;
23.  
24. void turnOn(String deviceId) {
25.   if (deviceId == "xxxxxxxxxxxxxxxxxxxxxxxx") // Device ID of first device
26.   {  
27.     Serial.print("Turn on device id: ");
28.     Serial.println(deviceId);
29.     while(b) {
30.       myservo.attach(2);
31.       myservo.write(15);
32.       delay(1000);
33.       myservo.detach();
34.       b = false;
35.     }
36.   }
37.  
38.   else {
39.     Serial.print("Turn on for unknown device id: ");
40.     Serial.println(deviceId);    
41.   }    
42. }
43.  
44. void turnOff(String deviceId) {
45.    if (deviceId == "xxxxxxxxxxxxxxxxxxxxxxxx") // Device ID of first device
46.    {  
47.      Serial.print("Turn off Device ID: ");
48.      Serial.println(deviceId);
49.      while(!b) {
50.       myservo.attach(2);
51.       myservo.write(0);
52.       delay(1000);
53.       myservo.detach();
54.       b = true;
55.      }
56.    }
57.  
58.   else {
59.      Serial.print("Turn off for unknown device id: ");
60.      Serial.println(deviceId);    
61.   }
62. }
63.  
64. void webSocketEvent(WStype_t type, uint8_t * payload, size_t length) {
65.   switch(type) {
66.     case WStype_DISCONNECTED:
67.       isConnected = false;    
68.       Serial.printf("[WSc] Webservice disconnected from sinric.com!\n");
69.       break;
70.     case WStype_CONNECTED: {
71.       isConnected = true;
72.       Serial.printf("[WSc] Service connected to sinric.com at url: %s\n", payload);
73.       Serial.printf("Waiting for commands from sinric.com ...\n");        
74.       }
75.       break;
76.     case WStype_TEXT: {
77.         Serial.printf("[WSc] get text: %s\n", payload);
78.        
79. #if ARDUINOJSON_VERSION_MAJOR == 5
80.         DynamicJsonBuffer jsonBuffer;
81.         JsonObject& json = jsonBuffer.parseObject((char*)payload);
82. #endif
83. #if ARDUINOJSON_VERSION_MAJOR == 6        
84.         DynamicJsonDocument json(1024);
85.         deserializeJson(json, (char*) payload);      
86. #endif        
87.         String deviceId = json ["deviceId"];    
88.         String action = json ["action"];
89.        
90.         if(action == "setPowerState") { // Switch or Light
91.             String value = json ["value"];
92.             if(value == "ON") {
93.                 turnOn(deviceId);
94.             } else {
95.                 turnOff(deviceId);
96.             }
97.         }
98.     }
99.       break;
100.     case WStype_BIN:
101.       Serial.printf("[WSc] get binary length: %u\n", length);
102.       break;
103.     default: break;
104.   }
105. }
106.  
107. void setup() {
108.   Serial.begin(9600);
109.  
110.   WiFiMulti.addAP(MySSID, MyWifiPassword);
111.   Serial.println();
112.   Serial.print("Connecting to Wifi: ");
113.   Serial.println(MySSID);
114.   myservo.attach(2);
115.   myservo.write(0);
116.   b = true;
117.  
118.   // Waiting for Wifi connect
119.   while(WiFiMulti.run() != WL_CONNECTED) {
120.     delay(500);
121.     Serial.print(".");
122.   }
123.   if(WiFiMulti.run() == WL_CONNECTED) {
124.     Serial.println("");
125.     Serial.print("WiFi connected. ");
126.     Serial.print("IP address: ");
127.     Serial.println(WiFi.localIP());
128.   }
129.  
130.   // server address, port and URL
131.   webSocket.begin("iot.sinric.com", 80, "/");
132.  
133.   // event handler
134.   webSocket.onEvent(webSocketEvent);
135.   webSocket.setAuthorization("apikey", MyApiKey);
136.  
137.   // try again every 5000ms if connection has failed
138.   webSocket.setReconnectInterval(5000);   // If you see 'class WebSocketsClient' has no member named 'setReconnectInterval' error update arduinoWebSockets
139. }
140.  
141. void loop() {
142.   webSocket.loop();
143.   if(isConnected) {
144.       uint64_t now = millis();
145.      
146.       // Send heartbeat in order to avoid disconnections during ISP resetting IPs over night. Thanks @MacSass
147.       if((now - heartbeatTimestamp) > HEARTBEAT_INTERVAL) {
148.           heartbeatTimestamp = now;
149.           webSocket.sendTXT("H");          
150.       }
151.   }  
152. }