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Ticker Class Reference
Public Member Functions | Static Public Member Functions | Protected Attributes

Ticker Class Reference
[Drivers]

A Ticker is used to call a function at a recurring interval. More...

#include <Ticker.h>

Inherits mbed::TimerEvent.

Inherited by LowPowerTicker, and Timeout.

Public Member Functions

void attach (Callback< void()> func, float t)
 Attach a function to be called by the Ticker, specifiying the interval in seconds.
template<typename T , typename M >
 MBED_DEPRECATED_SINCE ("mbed-os-5.1","The attach function does not support cv-qualifiers. Replaced by ""attach(callback(obj, method), t).") void attach(T *obj
 Attach a member function to be called by the Ticker, specifiying the interval in seconds.

Static Public Member Functions

static void irq (uint32_t id)
 The handler registered with the underlying timer interrupt.

Protected Attributes

timestamp_t _delay
 Time delay (in microseconds) for re-setting the multi-shot callback.
Callback< void()> _function
 Callback.

Detailed Description

A Ticker is used to call a function at a recurring interval.

You can use as many seperate Ticker objects as you require.

Synchronization level: Interrupt safe

Example: 

 // Toggle the blinking led after 5 seconds

 #include "mbed.h"

 Ticker timer;
 DigitalOut led1(LED1);
 DigitalOut led2(LED2);

 int flip = 0;

 void attime() {
     flip = !flip;
 }

 int main() {
     timer.attach(&attime, 5);
     while(1) {
         if(flip == 0) {
             led1 = !led1;
         } else {
             led2 = !led2;
         }
         wait(0.2);
     }
 }

Definition at line 62 of file Ticker.h.

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