


烧东西了,不开心,seeeeeeeeed的红色led,开始不亮去测试直接接电源了,闪了一下就再也不亮了,只能换蓝色的了,PWM只支持3、5、6、9,只能用蓝色点亮D6了,代码来自Fading。
/* Fading This example shows how to fade an LED using the analogWrite() function. The circuit: * LED attached from digital pin 9 to ground. Created 1 Nov 2008 By David A. Mellis modified 30 Aug 2011 By Tom Igoe http://arduino.cc/en/Tutorial/Fading This example code is in the public domain. */ int ledPin = 6; // LED connected to digital pin 9 void setup() { // nothing happens in setup } void loop() { // fade in from min to max in increments of 5 points: for(int fadeValue = 0 ; fadeValue <= 255; fadeValue +=5) { // sets the value (range from 0 to 255): analogWrite(ledPin, fadeValue); // wait for 30 milliseconds to see the dimming effect delay(30); } // fade out from max to min in increments of 5 points: for(int fadeValue = 255 ; fadeValue >= 0; fadeValue -=5) { // sets the value (range from 0 to 255): analogWrite(ledPin, fadeValue); // wait for 30 milliseconds to see the dimming effect delay(30); } }

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