main.cpp

00001 //Written by Todd Clark
00002 #include "mbed.h"
00003 #include "lcdOut.h"
00004 #include "sensor.h"
00005 #include "light.h"
00006 #include "convertToBAC.h"
00007 #include "switch.h"
00008 
00009 BusOut onboardLED {LED1,LED2,LED3,LED4}; 
00010 InterruptIn button(p18); 
00011 Timer debounce; 
00012 Ticker reset;
00013 
00014 bool overLimit;
00015 bool lightsOn = false;
00016 
00017 bool isOverLimit(float out, bool isUtahMode){
00018     float legalLimitBAC = (isUtahMode) ? 0.05 : 0.08;
00019     return (out < legalLimitBAC) ? false : true;
00020 }
00021 
00022 void resetLights(){
00023     lightsOn = false;
00024     turnOff();
00025     resetDisplay();
00026     onboardLED = 0x0; 
00027 }
00028 
00029 void runTest(){
00030     reset.attach(&resetLights, 30);
00031     bool isUtahMode = getUtahMode();
00032     float input = takeReading();
00033     float out = getBAC(input);
00034     overLimit = isOverLimit(out, isUtahMode);
00035     displayOut(out, isUtahMode);
00036 }
00037 
00038 void toggle(){
00039     if (debounce.read_ms()>200){ 
00040         runTest();
00041         lightsOn = true;
00042         debounce.reset(); 
00043     }
00044 }
00045 
00046 void initialize(){
00047     debounce.start();
00048     button.rise(&toggle); 
00049 } 
00050 
00051 int main(){
00052     float delay = 0.1;
00053     displayOut(-1.0, false);
00054     while(1){
00055         initialize();
00056         if(overLimit && lightsOn){
00057             changeBlue();
00058             onboardLED = 0x1;
00059             wait(delay);
00060             changeRed();
00061             onboardLED = 0x2;
00062             wait(delay);
00063             changeBlue();
00064             onboardLED = 0x4;
00065             wait(delay);
00066             changeRed();
00067             onboardLED = 0x8;
00068         }
00069         else if(lightsOn){
00070             changeGreen();
00071             onboardLED = 0x0;
00072         }
00073         else{
00074             turnOff();
00075             onboardLED = 0x0;   
00076         }
00077         wait(delay);
00078     }
00079 }
00080 
00081