Scheduler

Purpose

In order to get sensor values with a constant period the ESP needs to send them scheduled to the MQTT broker. To achieve this, the iotScheduler function can be used. It takes a certain number of milliseconds as an input. In addition a callback function can be registered where any functionality for gathering and sending date takes place.

Usage

The iotScheduler is a non-blocking type of scheduler. It uses the millis function to create the necessary period. A typical usage within the main loop could look like the following example:

void callBack();

void loop()
{
  iotScheduler(PERIOD, callBack);
}

void callBack()
{
  /**
   * Do any schedule logic here
   */
}