IFD:PhysicalComp2011/Hui Yuan: Difference between revisions

IFD:PhysicalComp2011/Hui Yuan (view source)

1,289 bytes added , 24 January 2012

no edit summary

132

edits

@@ Line 34: / Line 34: @@
 '''Arduino'''
-[[File:111.jpg|400px|]]
+<source lang="java">
+//*Arduino, rotary encoder code
+// this sketch use the five feet rotary encoder.
+// it includes an "endless" potentiometer and a button.
+// Encoder hooked up with common to GROUND,
+// encoder0PinA to pin 3, encoder0PinB to pin 4(could be exchange depends on the value)
+int val;
+int encoder0PinA = 3;
+int encoder0PinB = 4;
+//define encoder0PinA
+//define encoder0PinB
+int encoder0Pos = 0;
+int encoder0PinALast = LOW;
+int n = LOW;
+int myButtonPin=10; //define button on the encoder
+int myLedPin=13;
+int myButtonState = 0;
+void setup() {
+  pinMode(myButtonPin, INPUT);
+  pinMode(myLedPin, OUTPUT);
+  //setup button
+  pinMode (encoder0PinA,INPUT);
+ digitalWrite(encoder0PinA,HIGH);
+  pinMode (encoder0PinB,INPUT);
+  digitalWrite(encoder0PinB,HIGH);
+  Serial.begin (9600);
+}
+void loop() {
+  int myButtonState = digitalRead(myButtonPin);
+  if(myButtonState == HIGH){
+    digitalWrite(myLedPin, HIGH);
+  }else{
+    digitalWrite(myLedPin, LOW);
+}  //button control the Led to test
+  n = digitalRead(encoder0PinA);
+  if ((encoder0PinALast == LOW) && (n == HIGH)) {
+    if (digitalRead(encoder0PinB) == LOW) {
+      encoder0Pos--;
+    } else {
+      encoder0Pos++;
+    }
+    Serial.print (encoder0Pos);
+    Serial.println ("/");
+  }
+  encoder0PinALast = n;
+}
+</source>
+<br /><br />