33 lines
564 B
C++
33 lines
564 B
C++
/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2023-02-22 ChuShicheng first version
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*/
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#include <Arduino.h>
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int led = 37; /* LED pin */
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int brightness = 0;
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int fadeAmount = 5;
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void setup()
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{
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/* Do not invoke pinMode for the PWM IO! */
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}
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void loop()
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{
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analogWrite(led, brightness);
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brightness = brightness + fadeAmount;
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if (brightness <= 0 || brightness >= 255)
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{
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fadeAmount = -fadeAmount;
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}
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delay(100);
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}
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