int trafficLights1 = {2,3,4,5}; // red, yellow, green, pedestrians led pins
int trafficLights2 = {6,7,8,9}; // red, yellow, green, pedestrians led pins
int situations = 4;
int duration = {8000,3000,10000,3000}; // duration of each situation
long previousCars = 0;
long previousPeds = 0;
long interval = 0; //blink interval for pedestrians
int ledState = LOW;
int state;
int i = 0;
void setup()
{
for(int i = 0; i < 4; i++) {
pinMode(trafficLights1*, OUTPUT);*
_ pinMode(trafficLights2*, OUTPUT);_
_ }_
_ Serial.begin(9600);_
_}_
void loop()
_{_
_ unsigned long currentMillis = millis(); _
_ if(currentMillis - previousCars < duration) {
situation(i);
} else {
previousCars = currentMillis;
if(i >= situations) {
i = 0;
} else {
i++;
}
}
}
void activateTrafficLight1(String lights, int pedestrians)
{
for(int x = 0; x < 3; x++)
{
if(lights == ‘0’) state = LOW;
if(lights == ‘1’) state = HIGH;
digitalWrite(trafficLights1, state);
}
if(pedestrians == 1) {
blinkPed(trafficLights1[3]);
} else {
digitalWrite(trafficLights1[3], LOW);
}
}
void activateTrafficLight2(String lights, int pedestrians)
{
for(int x = 0; x < 3; x++)
{
if(lights == ‘0’) state = LOW;
if(lights == ‘1’) state = HIGH;
digitalWrite(trafficLights2, state);
}
if(pedestrians == 1) {
blinkPed(trafficLights2[3]);
} else {
digitalWrite(trafficLights2[3], LOW);
}
}
void situation(int i)
{
switch(i){
case 0:
activateTrafficLight1(“100”,1); // 100 means red ON, yellow OFF, green OFF*
* activateTrafficLight2(“001”,0); // the second parameter is for pedestrians*
* break; // 1 is ON and 0 is OFF*
* case 1:
activateTrafficLight1(“100”,0); // 110: red ON, yellow ON, green OFF*
* activateTrafficLight2(“010”,0);
break;
case 2:
activateTrafficLight1(“001”,0);
activateTrafficLight2(“100”,1);
break;
case 3:
activateTrafficLight1(“010”,0);
activateTrafficLight2(“100”,0);
break;
}
}
void blinkPed(int ped) {
unsigned long currentMillis = millis();
if(currentMillis - previousPeds > interval) {
previousPeds = currentMillis;
if (ledState == LOW)
ledState = HIGH;
else*
* ledState = LOW;
digitalWrite(ped, ledState);
}
}*
this is my code for traffic intersection
where when the light is green than the pedestrian light should be solid
and when the light is yellow the pedestrian light should flash
and when its red the pedestrian light should be solid
the light from both sides work fine but the only problem is that the led is not flashing at yellow.
please help_