File content as of revision 0:397faf7a0a52:

#include "mbed.h"
#include "uLCD_4DGL.h"
#include "DebounceIn.h"

Timeout alarm;
Timer t;
PwmOut lights(p25);
uLCD_4DGL uLCD(p9,p10,p11);
AnalogIn photocell(p15);
DebounceIn pb1(p8);
DebounceIn pb2(p7);
Serial blue(p28,p27);


void lightsOn(){
    uLCD.cls();
    uLCD.printf("Turning on lights!");
    //lights = 1;
    while(lights<=0.99f){
        lights = lights + .01f;
        wait(1);
    }
    while(1);//do nothing until reset
}

void lightMode(){
    uLCD.cls();
    uLCD.printf("not bright out yet!\n");
    while(photocell.read() < .9f){
        uLCD.cls();
        uLCD.printf("not bright out yet!\n");
    }
    lightsOn();
}

void timerMode(int time){
    alarm.attach(&lightsOn, time);
    t.start();
    float curTime;
    while(1){
        uLCD.cls();
        curTime = t.read();
        uLCD.printf("%f secs since alarm set.\n", curTime);
    }
}

int getTime(){
    bool done = false;
    int time[3] = {0,0,0};
    int modifying = 0;
    uLCD.cls();
    uLCD.printf("Connect Bluetooth now.\n\n");
    uLCD.printf("Up and down change time\n left and right select unit.\n");
    //uLCD.printf("This message will display for five seconds. Then input your desired time.");
    wait(5);
    char bnum = 0;
    char bhit = 0;
    while(!done){
        uLCD.cls();
        uLCD.printf("Current timer will last:\n");
        uLCD.printf("%d hours, %d mins, %d secs\n", time[2], time[1], time[0]);
        uLCD.printf("You are now modifying: ");
        if(modifying == 0){
            uLCD.printf("Secs\n");
        } else if(modifying == 1){
            uLCD.printf("Mins\n");
        } else if(modifying == 2){
            uLCD.printf("Hours\n");
        }
        uLCD.printf("Press 1 to set the timer to the current value.\n");
        if(blue.getc()=='!'){
            if(blue.getc()=='B'){
                bnum = blue.getc();//button number
                bhit = blue.getc();//1=hit, 0=release
                if(blue.getc()==char(~('!' + 'B' + bnum + bhit))){//checksum
                    switch(bnum){
                        case '1'://number button 1
                            if(bhit == '1'){
                                done = true;
                            }
                            break;
                        case '5'://up arrow
                            if(bhit=='1'){
                                time[modifying]++;
                            }
                            break;
                        case '6'://down arrow
                            if(bhit=='1'&&time[modifying]>0){
                                time[modifying]--;
                            }
                            break;
                        case '7'://left arrow
                            if(bhit=='1'&&modifying>0){
                                modifying--;
                            }
                            break;
                        case '8'://right arrow
                            if(bhit=='1'&&modifying<2){
                                modifying++;
                            }
                            break;
                    }
                }
            }
        }
    }
    return time[0] + time[1] * 60 + time[2] * 60 * 60;
    
}

int main() {
    lights = 0;
    uLCD.printf("LIGHT_ALARM V1.0 Donn Green\n\n");
    uLCD.printf("Press Button 1 to begin light activation mode\n");
    uLCD.printf("Press Button 2 to begin timer activation mode\n");
    pb1.mode(PullDown);
    pb2.mode(PullDown);
    lights.period(1.0f/25000.0f);
    while(!(pb1||pb2)){
        //do nothing until a button is pressed
    }
    if(pb1){
        lightMode();
    }
    else if(pb2){
        int time = getTime();
        timerMode(time);
    }
}