challenge-bot.com Git - challenge-bot/blob - arduino-sketches/phase0/phase0.ino

   1 /*
   2     This program is free software: you can redistribute it and/or modify
   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  */
  15
  16 /*
  17  * traffic lights
  18  */
  19
  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() {
  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
  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);
  44 }
  45
  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);
  53 }
  54
  55 void onsOffs(int* pinsToTurnOn, int numberOfPinsToTurnOn,
  56              int* pinsToTurnOff, int numberOfPinsToTurnOff){
  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]);
  62   }
  63   // turn on pins in pinsToTurnOn
  64   for(index = 0; index < numberOfPinsToTurnOn; index++) {
  65     on(pinsToTurnOn[index]);
  66   }
  67 }
  68
  69 void loop() {
  70   int redWait = 300;
  71   int yellowWait = 800;
  72   int greenWait = 1600;
  73
  74   onsOffs((int[]){red0, green1}, 2,
  75            (int[]){yellow0, green0, red1, yellow1}, 4);
  76   delay(greenWait);
  77
  78   onsOffs((int[]){red0, yellow1}, 2,
  79            (int[]){yellow0, green0, red1, green1}, 4);
  80   delay(yellowWait);
  81
  82   onsOffs((int[]){red0, red1}, 2,
  83            (int[]){yellow0, green0, yellow1, green1}, 4);
  84   delay(redWait);
  85
  86   onsOffs((int[]){green0, red1}, 2,
  87            (int[]){red0, yellow0, yellow1, green1}, 4);
  88   delay(greenWait);
  89
  90   onsOffs((int[]){yellow0, red1}, 2,
  91            (int[]){red0, green0, yellow1, green1}, 4);
  92   delay(yellowWait);
  93
  94   onsOffs((int[]){red0, red1}, 2,
  95            (int[]){yellow0, green0, yellow1, green1}, 4);
  96   delay(redWait);
  97 }