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37 lines
737 B
37 lines
737 B
/* Read Quadrature Encoder
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* Connect Encoder to Pins encoder0PinA, encoder0PinB, and +5V.
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*
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* Sketch by max wolf / www.meso.net
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* v. 0.1 - very basic functions - mw 20061220
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*
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*/
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int val;
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int encoder0PinA = 7;
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int encoder0PinB = 8;
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int encoder0Pos = 0;
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int encoder0PinALast = LOW;
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int n = LOW;
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void setup() {
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pinMode (encoder0PinA,INPUT);
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pinMode (encoder0PinB,INPUT);
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Serial.begin (9600);
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}
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void loop() {
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n = digitalRead(encoder0PinA);
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if ((encoder0PinALast == LOW) && (n == HIGH)) {
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if (digitalRead(encoder0PinB) == LOW) {
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encoder0Pos--;
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} else {
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encoder0Pos++;
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}
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Serial.print (encoder0Pos);
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Serial.print ("\n");
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}
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encoder0PinALast = n;
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}
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