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1 | // ping-pong-LED mit bitSet und outShift (inkl. Toene) |
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2 | // Aufgabe 1a/b von Blatt 5 |
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3 | |
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4 | int clockPin = 8; |
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5 | int latchPin = 9; |
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6 | int dataPin = 10; |
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7 | |
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8 | int leds = 0; |
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9 | |
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10 | void setup() |
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11 | { |
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12 | pinMode(latchPin, OUTPUT); |
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13 | pinMode(dataPin, OUTPUT); |
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14 | pinMode(clockPin, OUTPUT); |
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15 | } |
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16 | |
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17 | void loop() |
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18 | { |
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19 | int frequenz = 200; |
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20 | |
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21 | for (int n = 0; n< 8; n++) |
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22 | { |
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23 | bitSet(leds, n); |
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24 | updateShiftRegister(); |
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25 | tone(7, frequenz, 100); |
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26 | delay(100); |
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27 | frequenz=frequenz+50; |
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28 | leds=0; |
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29 | updateShiftRegister(); |
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30 | } |
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31 | |
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32 | frequenz=1000; |
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33 | |
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34 | for (int n = 7; n>=0; n--) |
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35 | { |
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36 | bitSet(leds, n); |
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37 | updateShiftRegister(); |
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38 | tone(7, frequenz, 100); |
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39 | delay(100); |
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40 | frequenz=frequenz-50; |
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41 | leds=0; |
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42 | updateShiftRegister(); |
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43 | |
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44 | } |
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45 | } |
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46 | |
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47 | void updateShiftRegister() |
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48 | { |
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49 | digitalWrite(latchPin, LOW); |
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50 | shiftOut(dataPin, clockPin, MSBFIRST, leds); |
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51 | digitalWrite(latchPin, HIGH); |
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52 | } |
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53 | |
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54 | |
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