code for blinking relay

Projects Programming
1

i am slowly working on a code to blink leds for my rc car. so far i have the switch working the lights, and the lights blinking. i copied the code to run two relays and only relay4 is controlled buy the switch. I am extremely new to arduino.

// 
const int switchPin = 8;
const int ledRelay4 = 4;
const int ledRelay3 = 5;
boolean lastButton = LOW;
boolean currentButton = LOW;
boolean ledOn4 = false;
boolean ledOn3 = false;

// 
int ledState = LOW;             //

// 
//
unsigned long previousMillis = 0;        // 

//
const long interval =625 ;           // 

 void setup() {
    // 
   pinMode(switchPin, INPUT);
   pinMode(ledRelay4, OUTPUT);
   pinMode(ledRelay3, OUTPUT);

   
}

boolean debounce(boolean last)
{
    boolean current = digitalRead(switchPin);
    if (last != current)
    {
    delay(5);
    current = digitalRead(switchPin);
    }
    return current;
}

void loop() 
{
    currentButton = debounce(lastButton);
   if (lastButton == LOW && currentButton == HIGH)
   {
     ledOn4 = !ledOn4;
     ledOn3 = !ledOn3;
   }
   lastButton = currentButton;
   
   
     unsigned long currentMillis = millis();

    if (currentMillis - previousMillis >= interval) {
    // 
    previousMillis = currentMillis;

    // 
    if (ledState == LOW) {
      ledState = HIGH;
    } else {
      ledState = LOW;
    }

    //
    if (ledOn4 && ledOn3);
    digitalWrite(ledRelay4, ledState);
    digitalWrite(ledRelay3, ledState);

    
    }
   
 
}

rc flash on off.jpg
rc flash on off.jpg508×617 47 KB

2

i am slowly working on a code to blink leds for my rc car. so far i have the switch working the lights, and the lights blinking. i copied the code to run two relays and only relay4 is controlled buy the switch. I am extremely new to arduino.

Please finish your question.
What is your sketch not doing for you?
Always comment your code.
Post a schematic.

3

Hello,

What do you think this line do?

if (ledOn4 && ledOn3);
4 
const int ledRelay4 = 4;
const int ledRelay3 = 5;

If the pin number is supposed to be included in the name, you have an error. If the numbers in the name mean something else, why do the numbers start at 3?

5

Also, byte is all that is needed here, not int. Pin numbers do not exceed 255, do they?