Coding timer help me

Projects Programming
1

can anyone help me to change this coding, so my coding is for run dc motor for every 16 hours....so anyone can help me to change the coding i want the motor run for every 5 minute

#define motorpin1 2
#define motorpin2 3

unsigned long previousTime = 0;
int Counter = 0;

void setup() {
  // put your setup code here, to run once:
  pinMode(motorpin1, OUTPUT);
  pinMode(motorpin2, OUTPUT);
}

void loop() {

  unsigned long currentTime = millis();

  if (currentTime - previousTime >= 10000) {

    Counter++;
    previousTime = currentTime;
  }

  if (Counter >= 5760) {
    Counter = 0;                                       // delay for 16 hours
    digitalWrite(motorpin1, HIGH);
    digitalWrite(motorpin2, LOW);

    delay(60000);         //On motor for 1 minute

    digitalWrite(motorpin1, LOW);
    digitalWrite(motorpin2, LOW);
  }


}
2

Please follow the advice given in the link below when posting code, in particular the section entitled 'Posting code and common code problems'

Use code tags (the </> icon above the compose window) to make it easier to read and copy for examination

3

Counter is incremented by 1 every 10 seconds by this part of the code

if (currentTime - previousTime >= 10000) {
  Counter++;
  previousTime = currentTime;
}

then when the Counter reaches 5760 you trigger some action in this code and reset the Counter

if(Counter >= 5760){
  Counter = 0;
  ... // some actions here

➜ so your action happens every 10s x 5760 = 57600 seconds which is 16 hours as you have 3600 seconds in one hour.

Now, how hard can it be to change de maths to be 5 minutes instead of 16 hours...

give it a try and post your solution with code tags (and fix also the first post please).

PS: side note, as the code is not doing anything else, just using delay would work...

conceptually you would just do:

loop:
  delay for 5 minutes
  trigger the action
  delay for the duration of the action
  stop the action
1 Like
4

consider
just posted this code for someone else who wanted to manage turning multiple lamps on/off

// demonstrate multiple lamp timer

enum { StOff, StOn };

struct Light {
    byte    pin;
    byte    onHour;
    byte    onMins;
    byte    offHour;
    byte    offMins;
    const char *desc;
    byte    on;
};

Light light [] = {
    { 10,  1, 30,  12,  0, "lamp0" },
    { 11,  3,  0,   9, 30, "lamp1" },
    { 12, 13,  0,  14, 30, "lamp2" },
    { 11, 11,  0,  14, 30, "lamp1" },
};
#define N_Light     (sizeof(light)/sizeof(Light))

enum { LedOff = HIGH, LedOn = LOW };

unsigned hour;
unsigned mins;

char s [80];

// -----------------------------------------------------------------------------
void loop ()
{
    unsigned long msec = millis ();

    mins = msec / 40;       // accelerate time for testing, 1hr = 2400 msec
    hour = mins / 60;
    hour = 24 < hour ? 1 : hour;
    mins = mins % 60;


    Light *l = light;
    for (unsigned n = 0; n < N_Light; n++, l++)  {
        if (l->on)  {
                    // compare mins range because of accelerated time
            if (hour == l->offHour && (mins - l->offMins) < 5)  {
                digitalWrite (l->pin, LedOff);
                l->on = false;

                sprintf (s, "  %2d:%02d  %3s  %s",
                    hour, mins, l->on ? "on" : "off", l->desc );
                Serial.println (s);
            }
        }
        else {
            if (hour == l->onHour && (mins - l->onMins) < 5)  {
                digitalWrite (l->pin, LedOn);
                l->on = true;

                sprintf (s, "  %2d:%02d  %3s  %s",
                    hour, mins, l->on ? "on" : "off", l->desc );
                Serial.println (s);
            }
        }
    }
}

// -----------------------------------------------------------------------------
void
setup (void)
{
    Serial.begin (115200);
    
    for (unsigned n = 0; n < N_Light; n++)  {
        digitalWrite (light [n].pin, LedOff);
        pinMode      (light [n].pin, OUTPUT);
    }
}
5 
#define motorpin1 2
#define motorpin2 3

unsigned long previousTime = 0;
int Counter = 0;

void setup() {
  // put your setup code here, to run once:
  pinMode(motorpin1, OUTPUT);
  pinMode(motorpin2, OUTPUT);
}

void loop() {

  unsigned long currentTime = millis();

  if (currentTime - previousTime >= 10000) {

    Counter++;
    previousTime = currentTime;
  }

  if (Counter >= 5760) {
    Counter = 0;
    digitalWrite(motorpin1, HIGH);
    digitalWrite(motorpin2, LOW);

    delay(60000);         //On motor for 1 minute

    digitalWrite(motorpin1, LOW);
    digitalWrite(motorpin2, LOW);
  }


}

code tags like this right

6

code tags are right but you did not update the code to match the 5 minutes :slight_smile:

7

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