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1 | /* |
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2 | This program is free software: you can redistribute it and/or modify |
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3 | it under the terms of the GNU Affero General Public License as |
4 | published by the Free Software Foundation, either version 3 of |
5 | the License, or (at your option) any later version. |
6 | |
7 | This program is distributed in the hope that it will be useful, |
8 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
9 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
10 | GNU Affero General Public License for more details. |
11 | |
12 | You should have received a copy of the GNU Affero General Public License |
13 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
14 | */ |
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15 | |
16 | /* |
17 | * traffic lights |
18 | */ |
19 | |
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20 | int red0 = 12; |
21 | int yellow0 = 11; |
22 | int green0 = 10; |
23 | |
24 | int red1 = 7; |
25 | int yellow1 = 6; |
26 | int green1 = 5; |
27 | |
28 | void setup() { |
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29 | pinMode(red0, OUTPUT); |
30 | pinMode(red1, OUTPUT); |
31 | pinMode(yellow0, OUTPUT); |
32 | pinMode(yellow1, OUTPUT); |
33 | pinMode(green0, OUTPUT); |
34 | pinMode(green1, OUTPUT); |
35 | } |
36 | |
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37 | /* |
38 | on(pinNumber); |
39 | turn on pin 'pinNumber'. |
40 | digitalWrite(pinNumber, HIGH); turns the voltage on for that pin. |
41 | */ |
42 | void on(int pinToTurnOn) { |
43 | digitalWrite(pinToTurnOn, HIGH); |
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44 | } |
45 | |
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46 | /* |
47 | off(pinNumber); |
48 | turn off pin 'pinNumber'. |
49 | digitalWrite(pinNumber, LOW); turns the voltage off for that pin. |
50 | */ |
51 | void off(int pinToTurnOff) { |
52 | digitalWrite(pinToTurnOff, LOW); |
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53 | } |
54 | |
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55 | void onsOffs(int* pinsToTurnOn, int numberOfPinsToTurnOn, |
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56 | int* pinsToTurnOff, int numberOfPinsToTurnOff){ |
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57 | // generic index used for arrays of pins to turn on or off |
58 | int index; |
59 | // turn off pins in pinsToTurnOff |
60 | for(index = 0; index < numberOfPinsToTurnOff; index++) { |
61 | off(pinsToTurnOff[index]); |
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62 | } |
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63 | // turn on pins in pinsToTurnOn |
64 | for(index = 0; index < numberOfPinsToTurnOn; index++) { |
65 | on(pinsToTurnOn[index]); |
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66 | } |
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67 | } |
68 | |
69 | void loop() { |
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70 | int redWait = 300; |
71 | int yellowWait = 800; |
72 | int greenWait = 1600; |
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73 | |
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74 | onsOffs((int[]){red0, green1}, 2, |
75 | (int[]){yellow0, green0, red1, yellow1}, 4); |
76 | delay(greenWait); |
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77 | |
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78 | onsOffs((int[]){red0, yellow1}, 2, |
79 | (int[]){yellow0, green0, red1, green1}, 4); |
80 | delay(yellowWait); |
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81 | |
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82 | onsOffs((int[]){red0, red1}, 2, |
83 | (int[]){yellow0, green0, yellow1, green1}, 4); |
84 | delay(redWait); |
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85 | |
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86 | onsOffs((int[]){green0, red1}, 2, |
87 | (int[]){red0, yellow0, yellow1, green1}, 4); |
88 | delay(greenWait); |
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89 | |
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90 | onsOffs((int[]){yellow0, red1}, 2, |
91 | (int[]){red0, green0, yellow1, green1}, 4); |
92 | delay(yellowWait); |
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93 | |
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94 | onsOffs((int[]){red0, red1}, 2, |
95 | (int[]){yellow0, green0, yellow1, green1}, 4); |
96 | delay(redWait); |
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97 | } |