[ Arduino ] - Hello LED

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開啟blink範例程式

編譯程式中


將程式上傳到板子

程式碼的部份
[java]
Blink
Turns on an LED on for one second, then off for one second, repeatedly.
Most Arduinos have an on-board LED you can control. On the Uno and
Leonardo, it is attached to digital pin 13. If you’re unsure what
pin the on-board LED is connected to on your Arduino model, check
the documentation at http://www.arduino.cc
This example code is in the public domain.
modified 8 May 2014
by Scott Fitzgerald
*/
// the setup function runs once when you press reset or power the board
void setup() {
// initialize digital pin 13 as an output.
pinMode(13, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(13, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second 試著改變 delay()中的數字
digitalWrite(13, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second 試著改變 delay()中的數字
}
[/java]
執行影片(內建LED)

LED 正極負極說明圖
長的為正極 (LED內部比較小塊的為正極)
短的為負極 (LED內部比較大塊的為負極)
由於有時會將LED的腳位做彎曲的動作這時請看LED的內部區塊做正負極的判斷

試著將 LED 的長腳位(正極) 插入版本中 13 的孔位， LED 的短腳位(負極) 插入 GND(接地線)中，如下圖。第一個外接LED就成功了。

執行影片(外接LED)

我要買 5mm LED
我要買 5mm LED 固定座