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PIC 32 AC DIMMER
02-12-2016, 02:02 AM,
#1
PIC 32 AC DIMMER
Hello,
 i am trying to get the AC Dimmer for the 8 bit  to work on 32 bit  any help would be great.
thank you
fred

Code:
Attach the Zero cross pin of the module to Arduino External Interrupt pin
Select the correct Interrupt # from the below table
(the Pin numbers are digital pins, NOT physical pins:
digital pin 2 [INT0]=physical pin 4 and digital pin 3 [INT1]= physical pin 5)
check: <a href="http://arduino.cc/en/Reference/attachInterrupt"> http://www.inmojo.com
</a>

Pin    |  Interrrupt # | Arduino Platform
---------------------------------------
2      |  0            |  All -But it is INT1 on the Leonardo
3      |  1            |  All -But it is INT0 on the Leonardo
18     |  5            |  Arduino Mega Only
19     |  4            |  Arduino Mega Only
20     |  3            |  Arduino Mega Only
21     |  2            |  Arduino Mega Only
0      |  0            |  Leonardo
1      |  3            |  Leonardo
7      |  4            |  Leonardo
The Arduino Due has no standard interrupt pins as an iterrupt can be attached to almosty any pin.


*/

int dimtime;
int AC_LOAD = 11;    // Output to Opto Triac pin
int dimming = 128;  // Dimming level (0-128)  0 = ON, 128 = OFF
void zero_crosss_int()  //function to be fired at the zero crossing to dim the light
{
 // Firing angle calculation : 1 full 50Hz wave =1/50=20ms
 // Every zerocrossing thus: (50Hz)-> 10ms (1/2 Cycle)
 // For 60Hz => 8.33ms (10.000/120)
 // 10ms=10000us
 // (10000us - 10us) / 128 = 75 (Approx) For 60Hz =>65

 int dimtime = (65*dimming);    // For 60Hz =>65    
 delayMicroseconds(dimtime);    // Wait till firing the TRIAC
 digitalWrite(AC_LOAD, HIGH);   // Fire the TRIAC
 delayMicroseconds(8.33);         // triac On propogation delay (for 60Hz use 8.33)
 digitalWrite(AC_LOAD, LOW);    // No longer trigger the TRIAC (the next zero crossing will swith it off) TRIAC
}

void setup()
{

 pinMode(AC_LOAD, OUTPUT);// Set AC Load pin as output
 OnChangePin1( zero_crosss_int, INT_FALLING_EDGE);  // Choose the zero cross interrupt # from the table above

}


void loop()
 {
int i;

   for ( i= 5; i <= 128; i++){
   dimming=i;
 
   delay(50);
  }
   
for ( i=128; i >= 5; i--)
{
dimming=i;
delay(50);
 
 
   

}
}
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