├── .gitattributes
└── Fan_Speed_Regulator_using_Blynk
    └── Fan_Speed_Regulator_using_Blynk.ino


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


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/Fan_Speed_Regulator_using_Blynk/Fan_Speed_Regulator_using_Blynk.ino:
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  1 | /*************************************************************
  2 |  This is the code for making your own Fan Regulator that works over internet using Blynk IoT Platform
  3 | 
  4 |  A full tutorial video on this project is uploaded on my YouTube channel.
  5 |  Have a look over it to know more
  6 | 
  7 |  techiesms YouTube Channel - https://www.youtube.com/techiesms
  8 | 
  9 |  Code written by - Sachin Soni
 10 |  Code written on - 11.07.20
 11 |   
 12 |   Download latest Blynk library here:
 13 |   https://github.com/blynkkk/blynk-library/releases/latest
 14 | 
 15 |           techiesms
 16 |     explore | learn | share
 17 | 
 18 | 
 19 |  *************************************************************/
 20 | 
 21 | /* Comment this out to disable prints and save space */
 22 | #define BLYNK_PRINT Serial
 23 | 
 24 | 
 25 | #include <WiFi.h>
 26 | #include <WiFiClient.h>
 27 | #include <BlynkSimpleEsp32.h>
 28 | 
 29 | #define Speed1 21
 30 | #define Speed2 19
 31 | #define Speed4 18
 32 | 
 33 | 
 34 | // You should get Auth Token in the Blynk App.
 35 | // Go to the Project Settings (nut icon).
 36 | char auth[] = "fmjTsPbnvXbnNDyzmXik9AtI0uaQSh4n";
 37 | 
 38 | // Your WiFi credentials.
 39 | // Set password to "" for open networks.
 40 | char ssid[] = "SmS_jiofi";
 41 | char pass[] = "sms123458956";
 42 | 
 43 | BLYNK_WRITE(V0)
 44 | {
 45 |   int fan_speed = param.asInt(); // assigning incoming value from pin V1 to a variable
 46 |   if (fan_speed == 0)
 47 |   {
 48 |     //All realys Off - Fan Off
 49 |     
 50 |     digitalWrite(Speed1, HIGH);
 51 |     digitalWrite(Speed2, HIGH);
 52 |     digitalWrite(Speed4, HIGH);
 53 |   }
 54 | 
 55 |   if (fan_speed == 1)
 56 |   {
 57 |     //Speed1 Relay On - Fan at speed 1
 58 |     
 59 |     digitalWrite(Speed1, HIGH);
 60 |     digitalWrite(Speed2, HIGH);
 61 |     digitalWrite(Speed4, HIGH);
 62 |     delay(500);
 63 |     digitalWrite(Speed1, LOW);
 64 |   }
 65 | 
 66 |   if (fan_speed == 2)
 67 |   {
 68 |     //Speed2 Relay On - Fan at speed 2
 69 |     
 70 |     digitalWrite(Speed1, HIGH);
 71 |     digitalWrite(Speed2, HIGH);
 72 |     digitalWrite(Speed4, HIGH);
 73 |     delay(500);
 74 |     digitalWrite(Speed2, LOW);
 75 |   }
 76 | 
 77 |   if (fan_speed == 3)
 78 |   {
 79 |     //Speed1 & Speed2 Relays On - Fan at speed 3
 80 |     
 81 |     digitalWrite(Speed1, HIGH);
 82 |     digitalWrite(Speed2, HIGH);
 83 |     digitalWrite(Speed4, HIGH);
 84 |     delay(500);
 85 |     digitalWrite(Speed1, LOW);
 86 |     digitalWrite(Speed2, LOW);
 87 |   }
 88 | 
 89 |   if (fan_speed == 4)
 90 |   {
 91 |     //Speed4 Relay On - Fan at speed 4
 92 |     
 93 |     digitalWrite(Speed1, HIGH);
 94 |     digitalWrite(Speed2, HIGH);
 95 |     digitalWrite(Speed4, HIGH);
 96 |     delay(500);
 97 |     digitalWrite(Speed4, LOW);
 98 |   }
 99 |   // process received value
100 | }
101 | 
102 | void setup()
103 | {
104 |   // Debug console
105 |   Serial.begin(115200);
106 | 
107 |   pinMode(Speed1, OUTPUT);
108 |   pinMode(Speed2, OUTPUT);
109 |   pinMode(Speed4, OUTPUT);
110 | 
111 |   //Initially the fan will be in OFF state
112 |   digitalWrite(Speed1, HIGH);
113 |   digitalWrite(Speed2, HIGH);
114 |   digitalWrite(Speed4, HIGH);
115 | 
116 | 
117 |   Blynk.begin(auth, ssid, pass);
118 | }
119 | 
120 | void loop()
121 | {
122 |   Blynk.run();
123 | }
124 | 


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