Changes between Version 2 and Version 3 of wade/embedded/arduino/example/example_1

Timestamp:

Jan 14, 2010, 4:27:52 PM (15 years ago)

Author:

wade

Comment:

--

wade/embedded/arduino/example/example_1

@@ -1 +1 @@
 {{{
 /*
- * 讓三顆 LED 輪流亮起來
+ * 讓三顆 LED 輪流亮起來，LOW 會導通電路
  */
 
-#define pin1 8             // 定義 LED 腳位
-#define pin2 4             // 定義 LED 腳位
-#define pin3 13            // 定義 LED 腳位
+#define r 3             // 定義 LED 腳位
+#define g 5             // 定義 LED 腳位
+#define b 6            // 定義 LED 腳位
 #define delay_time 1000    // 定義延遲時間
 
@@ -12 +12 @@
 void setup()
 {
-  pinMode(pin1, OUTPUT);
-  pinMode(pin2, OUTPUT);
-  pinMode(pin3, OUTPUT);
+  pinMode(r, OUTPUT);
+  pinMode(g, OUTPUT);
+  pinMode(b, OUTPUT);
+  digitalWrite(r, HIGH);
+  digitalWrite(g, HIGH);
+  digitalWrite(b, HIGH);
 }
 
@@ -21 +24 @@
 {
   // pin1 閃爍
-  digitalWrite(pin1, HIGH);
+  digitalWrite(r, LOW);
   delay(delay_time);
-  digitalWrite(r, LOW);
+  digitalWrite(r, HIGH);
   delay(delay_time);
 
   // pin2 閃爍
+  digitalWrite(g, LOW);
+  delay(delay_time);
   digitalWrite(g, HIGH);
-  delay(delay_time);
-  digitalWrite(g, LOW);
   delay(delay_time);
 
   // pin3 閃爍
+  digitalWrite(b, LOW);
+  delay(delay_time);
   digitalWrite(b, HIGH);
   delay(delay_time);
-  digitalWrite(b, LOW);
-  delay(delay_time);
 }
+
 }}}