main.cpp

00001 // Wordclock with WS2812-LED-Stripe
00002 // with 11x10 LED-Matrix and 4 minute-LEDS
00003 // and DS3231 RTC
00004 /*
00005 
00006 ESKISTLFÜNF
00007 ZEHNZWANZIG
00008 DREIVIERTEL
00009 TGNACHVORJM
00010 HALBXZWÖLFP
00011 ZWEINSIEBEN
00012 KDREIRHFÜNF
00013 ELFNEUNVIER
00014 WACHTZEHNRS
00015 BSECHSFMUHR
00016    ****
00017 */
00018 
00019 
00020 #include "mbed.h"
00021 #include "neopixel.h"
00022 #include "WordClock.h"
00023 #include "ds3231.h"
00024 
00025 /** add simple DST info to nvram of ds3231
00026 * we abuse bit RS1(bit3) from control-register which normally controls frequency of output-pin
00027 */
00028 class Ds3231_dst : public Ds3231
00029 {
00030 public:
00031     Ds3231_dst(PinName sda, PinName scl) : Ds3231(sda,scl) {}
00032 
00033 /** set_DST(bool dst)
00034 */      
00035     uint16_t set_DST(bool dst) {
00036         ds3231_cntl_stat_t data = {0xAA, 0xAA};
00037         uint16_t rtn_val;
00038         // first read CR
00039         rtn_val = get_cntl_stat_reg(&data);
00040         // applay dst
00041         if (dst) {
00042             data.control |= 1<<3;
00043         } else {
00044             data.control &= ~(1<<3);
00045         }
00046         //write back
00047         rtn_val = set_cntl_stat_reg(data);
00048         return 0;
00049     }
00050 /** bool get_DST()
00051 */
00052     bool get_DST() {
00053         ds3231_cntl_stat_t data = {0xAA, 0xAA};
00054         uint16_t rtn_val;
00055         // first read CR
00056         rtn_val = get_cntl_stat_reg(&data);
00057         // get dst
00058         if (data.control & (1<<3)) {
00059             return true;
00060         } else {
00061             return false;
00062         }
00063     }
00064 };
00065 
00066 int main()
00067 {
00068 
00069     // WordClock object with leds connected to p5 (MOSI)
00070     WordClock clock(p5);
00071 
00072     //RTC with DS3231 : sda, scl
00073     Ds3231_dst rtc(p9, p10);
00074 
00075     Timer timer;
00076     
00077     //DaylightSavingTIme?
00078     bool DST = false;
00079 
00080     //Serial pc(USBTX, USBRX); // tx, rx
00081     {
00082         //pc.baud(115200);
00083         //pc.printf("\n\rconnected to mbed - WordClock...\n\r");
00084         
00085         // set time and date
00086         //time and calendar variables
00087         ds3231_time_t time = {0, 39, 21, 0, 0};      //sec, min, hour, am/pm(1=pm), mode(1=12h)
00088         ds3231_calendar_t calendar = {1, 6, 11, 17};  //day(1=mon), date, month, year(2 digits)
00089         uint16_t rtn_val;
00090         // only set RTC when required!
00091 //        rtn_val = rtc.set_time(time);
00092 //        rtn_val = rtc.set_calendar(calendar);
00093 //        rtn_val = rtc.set_DST(false);
00094 
00095         // initial display
00096 
00097         // show Winterzeit/Sommerzeit as stored in RTC
00098         if (rtc.get_DST()){
00099             // SZ for Sommerzeit
00100             clock.sz();
00101             DST = true;
00102         }else{
00103             //WZ for Winterzeit
00104             clock.wz();
00105             DST = false;
00106         }
00107         wait(2); 
00108 
00109         while (1) { //display loop
00110 
00111             //read time 
00112             rtn_val = rtc.get_time(&time);
00113             //pc.printf("%2d:%2d ",time.hours,time.minutes);
00114 
00115             // read date
00116             rtn_val = rtc.get_calendar(&calendar);
00117             //pc.printf("%2d.%2d.%2d - day:%d \n\r",calendar.date, calendar.month,calendar.year, calendar.day);
00118             
00119 
00120             // check for DST time change 
00121             // only valid for europe!!!
00122             // see http://www.instructables.com/id/The-Arduino-and-Daylight-Saving-Time-Europe/
00123 
00124             //switch to ~DST on last sunday in october
00125             if (calendar.day == 7 && calendar.month == 10 && calendar.date >= 25 && time.hours == 3 && DST==true){
00126                 time.hours=2;
00127                 DST=false;
00128                 rtc.set_time(time);
00129                 rtc.set_DST(DST);
00130                 //show WZ
00131                 clock.wz();
00132                 wait(2);
00133             }
00134             //switch to DST on last sunday in march
00135             if (calendar.day == 7 && calendar.month == 3 && calendar.date >= 25 && time.hours == 2 && DST==false){
00136                 time.hours=3;
00137                 DST=true;
00138                 rtc.set_time(time);
00139                 rtc.set_DST(DST);
00140                 //show SZ
00141                 clock.sz();
00142                 wait(2);
00143             }
00144             
00145             //display time
00146             clock.display_time(time.hours,time.minutes,time.seconds);
00147             wait_ms(100);
00148         }
00149 
00150         //testprograms from here on
00151 
00152         timer.start();
00153 
00154         while(1) {
00155             // time fast forward
00156             for (int h=0; h<=23; h++) {
00157                 for (int m=0; m<=59; m++) {
00158                     for (int s=0; s<=59; s++) {
00159                         clock.display_time(h,m,s);
00160                         wait_ms(5);
00161                     }
00162                 }
00163             }
00164 
00165             // all words
00166             for (int i=1; i<=NUMWORDS; i++) {
00167                 clock.test_display(3,i);
00168                 wait_ms(800);
00169             }
00170             //all leds on with rainbow colors
00171             while ( int(timer.read()/10.0) %2 == 0) {
00172                 clock.test_display(1);
00173                 wait_ms(100);
00174             }
00175             // every led on for 250ms
00176             for (int i=0; i<NUMLEDS; i++) {
00177                 clock.test_display(2,i);
00178                 wait_ms(250);
00179             }
00180             timer.reset();
00181         }
00182     }
00183 
00184 }