├── .gitattributes
└── Controlling_W_O_Internet
    └── Controlling_W_O_Internet.ino


/.gitattributes:
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1 | # Auto detect text files and perform LF normalization
2 | * text=auto
3 | 


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/Controlling_W_O_Internet/Controlling_W_O_Internet.ino:
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  1 | /*
  2 |    This is a basic example on how to use Espalexa and its device declaration methods.
  3 | 
  4 |    This code is edited for controlling 4 Appliances by
  5 |    Sachin Soni 
  6 |    for techiesms YouTube channel 
  7 | 
  8 |    You can visit the channel to see
  9 |    complete tutorial on making this project
 10 |    by yoursleves
 11 | 
 12 |    YouTube Channel :- https://www.youtube.com/techiesms
 13 | 
 14 | 
 15 |           techiesms
 16 |    explore | learn | share
 17 | */
 18 | 
 19 | #ifdef ARDUINO_ARCH_ESP32
 20 | #include <WiFi.h>
 21 | #else
 22 | #include <ESP8266WiFi.h>
 23 | #endif
 24 | #include <Espalexa.h>
 25 | 
 26 | 
 27 | #define R1 15
 28 | #define R2 2
 29 | #define R3 4
 30 | #define R4 22
 31 | 
 32 | // prototypes
 33 | boolean connectWifi();
 34 | 
 35 | //callback functions
 36 | void firstLightChanged(uint8_t brightness);
 37 | void secondLightChanged(uint8_t brightness);
 38 | void thirdLightChanged(uint8_t brightness);
 39 | void fourthLightChanged(uint8_t brightness);
 40 | 
 41 | // Change this!!
 42 | 
 43 | // WiFi Credentials
 44 | const char* ssid = "SmS_jiofi";
 45 | const char* password = "sms123458956";
 46 | 
 47 | // device names
 48 | String Device_1_Name = "Office light";
 49 | String Device_2_Name = "Studio light";
 50 | String Device_3_Name = "Yellow Bulb";
 51 | String Device_4_Name = "Red bulb";
 52 | 
 53 | boolean wifiConnected = false;
 54 | 
 55 | Espalexa espalexa;
 56 | 
 57 | void setup()
 58 | {
 59 |   Serial.begin(115200);
 60 | 
 61 |   pinMode(R1, OUTPUT);
 62 |   pinMode(R2, OUTPUT);
 63 |   pinMode(R3, OUTPUT);
 64 |   pinMode(R4, OUTPUT);
 65 | 
 66 |   // Initialise wifi connection
 67 |   wifiConnected = connectWifi();
 68 | 
 69 |   if (wifiConnected)
 70 |   {
 71 | 
 72 |     // Define your devices here.
 73 |     espalexa.addDevice(Device_1_Name, firstLightChanged); //simplest definition, default state off
 74 |     espalexa.addDevice(Device_2_Name, secondLightChanged);
 75 |     espalexa.addDevice(Device_3_Name, thirdLightChanged);
 76 |     espalexa.addDevice(Device_4_Name, fourthLightChanged);
 77 | 
 78 |     espalexa.begin();
 79 | 
 80 |   }
 81 | 
 82 |   else
 83 |   {
 84 |     while (1)
 85 |     {
 86 |       Serial.println("Cannot connect to WiFi. Please check data and reset the ESP.");
 87 |       delay(2500);
 88 |     }
 89 |   }
 90 | 
 91 | }
 92 | 
 93 | void loop()
 94 | {
 95 |   espalexa.loop();
 96 |   delay(1);
 97 | }
 98 | 
 99 | //our callback functions
100 | void firstLightChanged(uint8_t brightness)
101 | {
102 |   //Control the device
103 |   if (brightness)
104 |   {
105 |     if (brightness == 255)
106 |     {
107 |       digitalWrite(R1, HIGH);
108 |       Serial.println("Device1 ON");
109 |     }
110 |     //Serial.print("ON, brightness ");
111 |     //Serial.println(brightness);
112 |   }
113 |   else
114 |   {
115 |     digitalWrite(R1, LOW);
116 |     Serial.println("Device1 OFF");
117 |   }
118 | }
119 | 
120 | void secondLightChanged(uint8_t brightness)
121 | {
122 | 
123 |   //Control the device 
124 |   if (brightness)
125 |   {
126 |     if (brightness == 255)
127 |     {
128 |       digitalWrite(R2, HIGH);
129 |       Serial.println("Device2 ON");
130 |     }
131 |     //Serial.print("ON, brightness ");
132 |     //Serial.println(brightness);
133 |   }
134 |   else
135 |   {
136 |     digitalWrite(R2, LOW);
137 |     Serial.println("Device2 OFF");
138 |   }
139 | }
140 | 
141 | void thirdLightChanged(uint8_t brightness)
142 | {
143 | 
144 |   //Control the device  
145 |   if (brightness)
146 |   {
147 |     if (brightness == 255)
148 |     {
149 |       digitalWrite(R3, HIGH);
150 |       Serial.println("Device3 ON");
151 |     }
152 |     //Serial.print("ON, brightness ");
153 |     //Serial.println(brightness);
154 |   }
155 |   else
156 |   {
157 |     digitalWrite(R3, LOW);
158 |     Serial.println("Device3 OFF");
159 |   }
160 | }
161 | 
162 | void fourthLightChanged(uint8_t brightness)
163 | {
164 | 
165 |   //Control the device 
166 |   if (brightness)
167 |   {
168 | 
169 |     if (brightness == 255)
170 |     {
171 |       digitalWrite(R4, HIGH);
172 |       Serial.println("Device4 ON");
173 |     }
174 |     //Serial.print("ON, brightness ");
175 |     //Serial.println(brightness);
176 |   }
177 |   else
178 |   {
179 |     digitalWrite(R4, LOW);
180 |     Serial.println("Device4 OFF");
181 |   }
182 | }
183 | 
184 | // connect to wifi – returns true if successful or false if not
185 | boolean connectWifi()
186 | {
187 |   boolean state = true;
188 |   int i = 0;
189 | 
190 |   WiFi.mode(WIFI_STA);
191 |   WiFi.begin(ssid, password);
192 |   Serial.println("");
193 |   Serial.println("Connecting to WiFi");
194 | 
195 |   // Wait for connection
196 |   Serial.print("Connecting...");
197 |   while (WiFi.status() != WL_CONNECTED) {
198 |     delay(500);
199 |     Serial.print(".");
200 |     if (i > 20) {
201 |       state = false; break;
202 |     }
203 |     i++;
204 |   }
205 |   Serial.println("");
206 |   if (state) {
207 |     Serial.print("Connected to ");
208 |     Serial.println(ssid);
209 |     Serial.print("IP address: ");
210 |     Serial.println(WiFi.localIP());
211 |   }
212 |   else {
213 |     Serial.println("Connection failed.");
214 |   }
215 |   return state;
216 | }
217 | 


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