80 lines
2.1 KiB
Arduino
80 lines
2.1 KiB
Arduino
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/**
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* TaskScheduler Test of OnEnable and OnDisable methods and illustration of using wrapper tasks for timout purposes
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*
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* A wrapper task runs every 10 seconds and initiates the test case
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* Another task is run once for 5 seconds, and serves as a LED blinking timeout - 5 seconds
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* Finally, a dedicated task which controls LED is running periodically until stopped, and makes the LED blink with 0.5 to 1 second interval.
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*
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*/
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#define _TASK_SLEEP_ON_IDLE_RUN
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#include <TaskScheduler.h>
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#ifndef LED_BUILTIN
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#define LED_BUILTIN 13 // define appropriate pin for your board
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#endif
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Scheduler ts;
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// Callback methods prototypes
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void WrapperCallback();
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bool BlinkOnEnable();
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void BlinkOnDisable();
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void LEDOn();
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void LEDOff();
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// Tasks
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Task tWrapper(10000L, TASK_FOREVER, &WrapperCallback, &ts, true);
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Task tBlink(5000, TASK_ONCE, NULL, &ts, false, &BlinkOnEnable, &BlinkOnDisable);
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Task tLED(0, TASK_FOREVER, NULL, &ts, false, NULL, &LEDOff);
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void WrapperCallback() {
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tBlink.restartDelayed(); // LED blinking is initiated
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//every 30 seconds for 5 seconds
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}
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// Upon being enabled, tBlink will define the parameters
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// and enable LED blinking task, which actually controls
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// the hardware (LED in this example)
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bool BlinkOnEnable() {
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tLED.setInterval( 500 + random(501) );
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tLED.setCallback( &LEDOn);
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tLED.enable();
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return true; // Task should be enabled
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}
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// tBlink does not really need a callback function
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// since it just waits for 5 seconds for the first
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// and only iteration to occur. Once the iteration
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// takes place, tBlink is disabled by the Scheduler,
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// thus executing its OnDisable method below.
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void BlinkOnDisable() {
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tLED.disable();
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}
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void LEDOn () {
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digitalWrite(LED_BUILTIN , HIGH);
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tLED.setCallback( &LEDOff);
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}
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void LEDOff () {
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digitalWrite(LED_BUILTIN , LOW);
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tLED.setCallback( &LEDOn);
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}
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// Note that LEDOff method serves as OnDisable method
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// to make sure the LED is turned off when the tBlink
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// task finishes (or disabled ahead of time)
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void setup() {
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// put your setup code here, to run once:
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pinMode(LED_BUILTIN , OUTPUT);
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}
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void loop() {
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// put your main code here, to run repeatedly:
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ts.execute();
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}
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