main.cpp

00001 // Sweep the motor speed from full-speed reverse (-1.0) to full speed forwards (1.0)
00002  
00003 #include "mbed.h"
00004 #include "Motor.h"
00005 #include "TextLCD.h"
00006 
00007 Motor m(p21, p23, p28); // pwm, fwd, rev
00008 DigitalOut led(LED1);
00009 DigitalOut test(LED2);
00010 TextLCD lcd(p14, p16, p17, p18, p19, p20, TextLCD::LCD20x4); // rs, e, d4-d7
00011 DigitalOut high(p22);
00012 DigitalIn pb(p6);
00013 DigitalOut high2(p29); 
00014 AnalogIn slider(p15);
00015 Serial pc(USBTX, USBRX);
00016 void open();
00017 void close();
00018 void printTime(double);
00019 int state;
00020 char buffer[32];
00021 time_t seconds;
00022 double setTime;
00023 struct tm* timeInfo;
00024 
00025 int main() {
00026     set_time(    702000900    );  
00027     state = 1; //Start with blinds closed (0 is open)
00028     pb.mode(PullUp);
00029     int lastPb = pb;
00030     lcd.cls();
00031     wait(1);
00032     while (1){
00033         seconds = time(NULL);
00034         if (abs(slider.read()-setTime)>.006){ // <-- this is the line of percision
00035             setTime = slider.read();
00036         }
00037         printTime(setTime);
00038         
00039         pc.printf("%f \n", slider.read());
00040         high = 1; //seems unused
00041         high2 = 1; //seems unused
00042         if (!pb){  
00043             if (state == 1){
00044                 open();
00045                 led = 1;
00046                 pc.printf("open");
00047             }
00048             else {
00049                 close();
00050                 led = 0;
00051                 pc.printf("close");
00052             }
00053         }
00054         m.speed(0);
00055         wait(.2);
00056     }
00057 }
00058 
00059 void open() {
00060     m.speed(-1);
00061     test = 1; // for testing purposes, the system should be running
00062     wait(2.6);
00063     test = 0;
00064     state = 0;
00065 }
00066 
00067 void close() {
00068     m.speed(1);
00069     wait(2.6);
00070     state = 1;
00071 }
00072 
00073 // Takes analog input from 0 to 1 and displays a time based on that
00074 void printTime(double in) {
00075     int totMins = in*1440; //maps to integer based on mins in a day
00076     int hrs = totMins/60;
00077     int mins = totMins%60;
00078     timeInfo = localtime(&seconds);
00079     lcd.locate(0,0);
00080     lcd.printf("time: %2.2d:%2.2d",timeInfo->tm_hour,timeInfo->tm_min); // added percision to make it more like a clock HH:MM
00081     lcd.locate(0,1);
00082     lcd.printf("start: %2.2d:%2.2d",hrs,mins);
00083     if ((state == 1) && (hrs == timeInfo->tm_hour) && (mins == timeInfo->tm_min)){
00084         open();
00085     }
00086 }