LinkIt 7697的內建LED做呼吸燈

LinkIt 7697的內建LED做呼吸燈

http://download.labs.mediatek.com/package_mtk_linkit_7697_index.json

• • 
  • 
    

Arduino 程式如下

#include <SPI.h>
int led;
int fade;

void setup()
{
//  LED=LED_BUILTIN;
 pinMode(LED_BUILTIN, OUTPUT);
  led = 0;
  fade = 5;
  digitalWrite(LED_BUILTIN, LOW);
  Serial.begin(9600);
}

void loop()
{
  analogWrite(LED_BUILTIN, led);
  led = led + fade;

  if (led <= 0) {
    fade = 5;
  } else if (led >= 255) {
    fade = -5;
  }

  Serial.println(led);
  delay(30);
  
}
}