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ac626ad9f8
* Use LED_BUILTIN so that it works w/o attaching external LED * Use built-in LED * Clarify text
49 lines
1.1 KiB
C++
49 lines
1.1 KiB
C++
/*
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Basic Ticker usage
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Ticker is an object that will call a given function with a certain period.
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Each Ticker calls one function. You can have as many Tickers as you like,
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memory being the only limitation.
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A function may be attached to a ticker and detached from the ticker.
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There are two variants of the attach function: attach and attach_ms.
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The first one takes period in seconds, the second one in milliseconds.
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The built-in LED will be blinking.
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*/
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#include <Ticker.h>
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Ticker flipper;
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int count = 0;
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void flip()
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{
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int state = digitalRead(LED_BUILTIN); // get the current state of GPIO1 pin
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digitalWrite(LED_BUILTIN, !state); // set pin to the opposite state
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++count;
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// when the counter reaches a certain value, start blinking like crazy
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if (count == 20)
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{
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flipper.attach(0.1, flip);
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}
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// when the counter reaches yet another value, stop blinking
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else if (count == 120)
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{
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flipper.detach();
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}
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}
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void setup() {
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pinMode(LED_BUILTIN, OUTPUT);
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digitalWrite(LED_BUILTIN, LOW);
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// flip the pin every 0.3s
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flipper.attach(0.3, flip);
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}
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void loop() {
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}
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