├── .gitattributes
└── AC_Dimmer_Using_Arduino
    └── AC_Dimmer_Using_Arduino.ino


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


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/AC_Dimmer_Using_Arduino/AC_Dimmer_Using_Arduino.ino:
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 1 | /*
 2 |  * This is the code for AC Dimmer using Arduino Board.
 3 |  * 
 4 |  * To watch it's full tutorial video, head on to my YouTube Channel
 5 |  * 
 6 |  * http://www.youtube.com/techiesms
 7 |  * 
 8 |  */
 9 | 
10 | 
11 | #define triacPulse 10
12 | #define SW 7
13 | #define ZVC 2
14 | 
15 | int x = 0;
16 | void setup() {
17 |   Serial.begin(115200);
18 |   pinMode(ZVC, INPUT_PULLUP);
19 |   //digitalWrite(2, INPUT_PULLUP); // pull up
20 |   pinMode(A0, INPUT);
21 |   pinMode(triacPulse, OUTPUT);
22 |   pinMode(SW, INPUT);
23 |   digitalWrite(SW, INPUT_PULLUP);
24 | }
25 | 
26 | void loop() {
27 | 
28 |   //if (!digitalRead(SW)) 
29 |   { // When the switch is closed
30 |    int y = analogRead(A0);
31 |     x= map(y,0,1024, 200,7200);
32 |     
33 |    Serial.println(digitalRead(ZVC));
34 |     attachInterrupt(0, acon, FALLING); // attach Interrupt at PIN2
35 |   }
36 |   //else if (digitalRead(SW)) {
37 |     //detachInterrupt(0); // Detach Interrupt
38 |   //}
39 | }
40 | 
41 | void acon()
42 | {
43 |   // Serial.println("REad");
44 |    
45 |   delayMicroseconds(x); // read AD0
46 |   digitalWrite(triacPulse, HIGH);
47 |   
48 |   // Serial.println(digitalRead(triacPulse));
49 |   
50 |   delayMicroseconds(50);  //delay 50 uSec on output pulse to turn on triac
51 |   digitalWrite(triacPulse, LOW);
52 |   
53 |   // Serial.println(digitalRead(triacPulse));
54 | }
55 | 


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