function timing

Using Arduino Programming Questions
#1

Hei all, I noticed one weird thing. When loop1 “activates” (every 60s) then loop lasts 12ms less that usually. Could anybody tell me why is it like that?

#include "FastLED.h"
#include "Scheduler.h"
#define NUM_LEDS 60
#define DATA_PIN 2

CRGB leds[NUM_LEDS];
int ss = 0, mm = 0, hh = 0;
unsigned long now_1 = 0, last_time_1 = 0, now_2 = 0, last_time_2 = 0, now_3 = 0, last_time_3 = 0;

void setup()
{
	FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
	leds[ss].setRGB(0, 255, 0);
	leds[mm].setRGB(0, 0, 255);
	leds[hh].setRGB(255, 0, 0);
	Serial.begin(115200);
	Scheduler.startLoop(loop1);
	Scheduler.startLoop(loop2);
}

void loop() //change ss
{
	int i = 0; //all cycle must last 1000ms
	for (ss = 0; ss < 60; ss++)
	{
		for (i; i < 40; i++)
		{
			leds[ss] += CRGB(0, 7, 0);
			FastLED.show();
			delay(10);
		}

		delay(16);

		for (i; i >= 0; i--)
		{
			leds[ss] -= CRGB(0, 7, 0);
			FastLED.show();
			delay(10);
		}
	}
}

void loop1() //change mmutes
{
	int i = 0;
	for (mm = 0; mm < 60; mm++) //all cycle must last 60000ms
	{
		for (i; i < 40; i++) //this cycle tices 492ms
		{
			leds[mm] += CRGB(0, 0, 7);
			FastLED.show();
			delay(10);
		}

		delay(59016);

		for (i; i >= 0; i--)
		{
			leds[mm] -= CRGB(0, 0, 7); //this cycle tices 492ms
			FastLED.show();
			delay(10);
		}
	}
	yield();
}

void loop2() //change hour
{
	int i = 0;
	for (hh = 0; hh < 60; hh = hh + 5) //all cycle must last 3600000ms
	{
		for (i; i < 40; i++)
		{
			leds[hh] += CRGB(7, 0, 0);
			FastLED.show();
			delay(10);
		}

		delay(3599016);

		for (i; i > 0; i--)
		{
			leds[hh] -= CRGB(7, 0, 0);
			FastLED.show();
			delay(10);
		}
	}
	yield();
}
#2

I don't want to appear picky, but where is the loop2() function and what sets the frequency of operation of the scheduled events ?

#3

I did not notice any loop2() in the code you posted.

How are you measuring the execution time of loop()?

#4

sorry, my bad, I ment Loop1. fixed question*

#5

I still see a reference to loop2 and don't know what sets the frequency of operation using the Scheduler library

#6

There is nothing that sets the frequency of scheduler operation. How that can help me?

#7

I am not familiar with the Scheduler library. but from its name I imagined that it allowed you to schedule actions to take place at given times, but it seems not and that it is an attempt to implement a rudimentary multitasking system

By the way, where is the loop2() function ?

#8

copied all code now
as much as I read the scheduler calls out other thread during delay() function but even then why it lasts less time than is should

#9

copied all code now

OK, but I wish that you had not done it by revising your original post as it makes a nonsense of comments about it. Please don't do that again.

#10