I have problem
I used this code
/*
AC Light Dimmer - Inmojo
AC Voltage dimmer with Zero cross detection
Author: Charith Fernanado http://www.inmojo.com charith@inmojo.com
License: Released under the Creative Commons Attribution Share-Alike 3.0 License.
Creative Commons — Attribution-ShareAlike 3.0 Unported — CC BY-SA 3.0
Target: Arduino
Attach the Zero cross pin of the module to Arduino External Interrupt pin
Select the correct Interrupt # from the below table
Pin | Interrrupt # | Arduino Platform
2 | 0 | All
3 | 1 | All
18 | 5 | Arduino Mega Only
19 | 4 | Arduino Mega Only
20 | 3 | Arduino Mega Only
21 | 2 | Arduino Mega Only
*/
int AC_LOAD = 3; // Output to Opto Triac pin
int dimming = 128; // Dimming level (0-128) 0 = ON, 128 = OFF
void setup()
{
pinMode(AC_LOAD, OUTPUT); // Set the AC Load as output
attachInterrupt(0, zero_crosss_int, RISING); // Choose the zero cross interrupt # from the table above
}
void zero_crosss_int() // function to be fired at the zero crossing to dim the light
{
// Firing angle calculation :: 50Hz-> 10ms (1/2 Cycle)
// (10000us - 10us) / 128 = 75 (Approx)
int dimtime = (75*dimming);
delayMicroseconds(dimtime); // Off cycle
digitalWrite(AC_LOAD, HIGH); // triac firing
delayMicroseconds(10); // triac On propogation delay
digitalWrite(AC_LOAD, LOW); // triac Off
}
void loop()
{
dimming = 128;
delay(100);
dimming = 75;
delay(100);
dimming = 25;
delay(100);
}
It work with 1 Module of dimmer but when I connect another dimmer and i develop this code I cant control 2 dimmer in the same time
How can i control 2 dimmer with different firing angle time of triac in the same period of time
thank you all