I’m trying to use three push buttons to control EL wire for a wearable. When I prototyped with LED’s the three push buttons worked fine. Now that I’ve complicated the circuit with an inverter, optoisolators, and triacs, the buttons are interfering with each other.
Here’s the code:
int LEDPin = 2;
int red = 6;
int green_one = 8;
int green_two = 10;
int yellow = 12;
int button1 = 3;
int button2 = 4;
int button3 = 5;
int push1;
int push2;
int push3;
int change = 1;
int change2 = 1;
int change3 = 1;
int state = 0;
int state2 = 0;
int state3 = 0;
int delay_value=500;
// the setup function runs once when you press reset or power the board
void setup(){
//initialize each pin for INPUT or OUTPUT
pinMode(LEDPin, OUTPUT);
pinMode(yellow, OUTPUT);
pinMode(red, OUTPUT);
pinMode(green_one, OUTPUT);
pinMode(green_two, OUTPUT);
pinMode(button2, INPUT);
pinMode(button1, INPUT);
pinMode(button3, INPUT);
}
//the loop function runs over and over again forever
void loop(){
push1=digitalRead(button1); // set push to left signal value
push2=digitalRead(button2); // set push to right signal value
push3=digitalRead(button3); // set push to stop signal value
digitalWrite(LEDPin, LOW); // set indicator to LOW
digitalWrite(yellow, HIGH); // set cyclist symbol to HIGH
digitalWrite(red, LOW); // set stop cyclist to LOW
digitalWrite(green_one, LOW); // set left signal to LOW
digitalWrite(green_two, LOW); // set right signal to LOW
if(push1==LOW && change==HIGH){ //allows left signal button to be pushed and released
state=1-state; //and signal stays on until pushed and released again
}change=push1;
if(push2==LOW && change2==HIGH){//allows stop signal button to be pushed and released
state2=1-state2; //and signal stays on until pushed and released again
}change3=push3;
if(push3==LOW && change3==HIGH){//allows right signal button to be pushed and released
state3=1-state3; //and signal stays on until pushed and released again
}change3=push3;
if(state==1){
digitalWrite(yellow, LOW); // turn cycle symbol off
digitalWrite(LEDPin, HIGH); // indicator LED on
delay(delay_value); digitalWrite(LEDPin, LOW); digitalWrite(green_one, HIGH);
delay(delay_value); // left signal blinking
}
if(state3==1){
digitalWrite(yellow, LOW); // turn cycle symbol off
digitalWrite(LEDPin, HIGH); // indicator LED on
delay(delay_value); digitalWrite(LEDPin, LOW); digitalWrite(green_two, HIGH);
delay(delay_value); // right signal blinking
}
if(state2==1){
digitalWrite(LEDPin, HIGH); // indicator LED on
digitalWrite(yellow, LOW); // yellow cycle symbol off
digitalWrite(red, HIGH); // red cycle symbol on
delay(delay_value);
}if(state==0 and state2==0 and state3==0){
digitalWrite(LEDPin, LOW); // indicator off
digitalWrite(yellow, HIGH); // cycle symbol on -- the normal state of the lights
}
}
An image of the circuit is attached - note* optocouplers are actually optoisolators used to keep DC and AC currents separate.
I need each button to control one behavior of just one piece of EL wire (two green lights for blinking, one red light to turn and stay on - default behavior is yellow light on). When I try to run this program, however, the buttons act as if always HIGH and the lights blink on and off in a dance. Though this adorable, not the function I’m looking for.
Any ideas how to isolate the button behavior?
