Is It possible to get time remaining until the end?

[sidneivl]

Hi,

I appreciate your work and I would know if is possible to show the time remaining until the end.

For example, I have a countdown with a specific time using the function in(), but I want to show the time remaining in a display.

I tried use the function every() but in the looping the time is desynchronized because I have some delays.

An exemple of code to illustrate that.

`#include <arduino-timer.h>

auto t = timer_create_default();

int timerToShow = 60000;
int timerToShowArduino = 60000;

long previousMillis = 0;
const int maxTime = 1000;

bool counting = false;

bool updateTimer(void *)
{
timerToShow -= 1000;
return true;
}

void updateTimerByArduino() {
timerToShowArduino -= 1000;
}

bool finishTimer(void *) {
Serial.println("finish");
counting = false;
t.cancel();
return true;
}

void setup()
{
Serial.begin(9600);
Serial.println("start");
counting = true;
t.in(timerToShow, finishTimer);
t.every(1000, updateTimer);
}

void loop()
{
if(millis() - previousMillis >= maxTime) {
previousMillis = millis();

    t.tick();

    updateTimerByArduino();

    if(counting) {
      Serial.println(String(t.ticks()) + "|" + String(timerToShow) + "|" + String(timerToShowArduino));
    }

    delay(1500);

}
}`

In this case when the call finishTimer() in the correct time, the counters are on 20000 yet.

Can you help me?

Regards

[sidneivl]

I've improved the code using Millis() but your lib have doesn't a function to do that?

void updateTimerByArduino() { timerToShowArduino += (timePast - millis()); timePast = millis(); }