Im trying to create AC dimmer (230V motor controller) and it wont work.
It wont responding corectly to my triger signal from arduino (flickering and some noise at default level).
Please check my wiering and code and help me out...
#include <TimerOne.h> // Avaiable from http://www.arduino.cc/playground/Code/Timer1
volatile int i=0; // Variable to use as a counter volatile as it is in an interrupt
volatile boolean zero_cross=0; // Boolean to store a "switch" to tell us if we have crossed zero
int AC_pin = 3; // Output to Opto Triac
int dim = 0; // Dimming level (0-128) 0 = on, 128 = 0ff
int inc=1; // counting up or down, 1=up, -1=down
int val = 0; // variable to store the value read
int freqStep = 75; //75 This is the delay-per-brightness step in microseconds.
// For 60 Hz it should be 65
void setup() { // Begin setup
Serial.begin(115200);
pinMode(AC_pin, OUTPUT);
attachInterrupt(digitalPinToInterrupt(2), zero_cross_detect, RISING); // Attach an Interupt to Pin 2 (interupt 0) for Zero Cross Detection
Timer1.initialize(freqStep); // Initialize TimerOne library for the freq we need
Timer1.attachInterrupt(dim_check, freqStep);
// Use the TimerOne Library to attach an interrupt
// to the function we use to check to see if it is
// the right time to fire the triac. This function
// will now run every freqStep in microseconds.
}
void zero_cross_detect() {
zero_cross = true; // set the boolean to true to tell our dimming function that a zero cross has occured
i=0;
digitalWrite(AC_pin, LOW); // turn off TRIAC (and AC)
//Serial.println("LOW");
}
// Turn on the TRIAC at the appropriate time
void dim_check() {
if(zero_cross == true) {
if(i>=dim) {
digitalWrite(AC_pin, HIGH); // turn on light
i=0; // reset time step counter
zero_cross = false; //reset zero cross detection
//Serial.println("HIGH");
}
else {
i++; // increment time step counter
}
}
}
void loop() {
dim+=inc;
if((dim>=128) || (dim<=0))
inc*=-1;
delay(18);
if (Serial.available() > 0) {
int a = Serial.parseInt();
if(a>0){dim = a;Serial.println(dim);}
}
}
Thank you
