Platform

• Hardware: [ESP-12]
• Core Version: [2.7.4] & [3.0.0]
• Development Env: [Arduino IDE]
• Operating System: [Windows]

Settings in IDE

• Module: [Generic ESP8266]
• Flash Mode: [qio]
• Flash Size: [4MB]
• lwip Variant: [v2 Higher Bandwidth]
• Reset Method: [nodemcu]
• Flash Frequency: [80Mhz]
• CPU Frequency: [80Mhz]
• Upload Using: [OTA|SERIAL]
• Upload Speed: [115200]

Problem Description

Any Ticker tasks fire OK if time is short (tested up to 60 seconds (60 000ms)). However, when I try to control the brightness after sunset, the time gets big (for example 44944 sec (44 944 000ms)) & the same task no longer start. The code below is not exactly what I have in my project, but close.

MCVE Sketch

#include <Arduino.h>
#include <Ticker.h>

Ticker ticker_autoBrightness;

uint32_t timeSec = 44079; //12h:14m:39s

void setup() {
pinMode(2, OUTPUT);

task_clockDayBrightness();
}

void loop() {
//empty
}

void task_clockDayBrightness()
{
  digitalWrite(2, LOW); //turn LED on

  ticker_autoBrightness.once_scheduled(timeSec, task_clockNightBrightness);
}

void task_clockNightBrightness()
{
  digitalWrite(2, HIGH); //turn LED off

  ticker_autoBrightness.once_scheduled(timeSec, task_clockDayBrightness);
}