smd.iotkit.ch / Mbed 2 deprecated 0-09-03-Uebung

9.3 Licht zeitgesteuert Ein- und Ausschalten, z.B. h:m:45 Ein, h:m:50 Aus.

Dependencies:   EthernetInterface NTPClient mbed-rtos mbed

Fork of 09-03-Uebung by th.iotkit.ch

main.cpp@2:c56233cb8520, 2015-02-22 (annotated)

Committer:
stefan1691
Date:
Sun Feb 22 14:15:58 2015 +0000
Revision:
2:c56233cb8520
Parent:
1:731bf468ab9f
Child:
3:ca2a69bdba22
9.2 Holen der Zeit vom Internet, interne Uhr setzen und Ausgabe auf Display

Who changed what in which revision?

UserRevisionLine numberNew contents of line
stefan1691 2:c56233cb8520 1 /** 9.2 Holen der Zeit vom Internet, interne Uhr setzen und Ausgabe auf Display
stefan1691 1:731bf468ab9f 2 * Informationen um Zeit zu holen von http://stackoverflow.com/questions/997946/how-to-get-current-time-and-date-in-c
stefan1691 0:8107357917ce 3 */
stefan1691 0:8107357917ce 4 #include "mbed.h"
stefan1691 2:c56233cb8520 5 #include "EthernetInterface.h"
stefan1691 2:c56233cb8520 6 #include "NTPClient.h"
stefan1691 1:731bf468ab9f 7 #include "DigitDisplay.h"
stefan1691 1:731bf468ab9f 8
stefan1691 2:c56233cb8520 9 EthernetInterface eth;
stefan1691 2:c56233cb8520 10 NTPClient ntp;
stefan1691 1:731bf468ab9f 11 DigitDisplay display(PTC5, PTC7);
stefan1691 1:731bf468ab9f 12
stefan1691 0:8107357917ce 13 int main()
stefan1691 0:8107357917ce 14 {
stefan1691 2:c56233cb8520 15 // Ethernet Interface Initialisieren
stefan1691 2:c56233cb8520 16 printf("Initialize Ethernet\n" );
stefan1691 2:c56233cb8520 17 eth.init();
stefan1691 2:c56233cb8520 18 eth.connect();
stefan1691 0:8107357917ce 19
stefan1691 2:c56233cb8520 20 // Zeit vom Time Server holen
stefan1691 2:c56233cb8520 21 printf("Trying to update time...\r\n");
stefan1691 2:c56233cb8520 22 if (ntp.setTime("1.pool.ntp.org") == 0)
stefan1691 2:c56233cb8520 23 {
stefan1691 2:c56233cb8520 24 printf("Set time successfully\r\n");
stefan1691 2:c56233cb8520 25 time_t ctTime;
stefan1691 2:c56233cb8520 26 ctTime = time(NULL);
stefan1691 2:c56233cb8520 27 printf("Time is set to (UTC): %s\r\n", ctime(&ctTime));
stefan1691 2:c56233cb8520 28 }
stefan1691 2:c56233cb8520 29 else
stefan1691 2:c56233cb8520 30 printf("Error\r\n");
stefan1691 2:c56233cb8520 31 eth.disconnect();
stefan1691 0:8107357917ce 32
stefan1691 0:8107357917ce 33 // display the time
stefan1691 0:8107357917ce 34 while(1)
stefan1691 0:8107357917ce 35 {
stefan1691 0:8107357917ce 36 time_t seconds = time(NULL);
stefan1691 1:731bf468ab9f 37 struct tm * now = localtime( & seconds );
stefan1691 1:731bf468ab9f 38 printf( "%d.%d.%d %2d:%2d:%2d\n", now->tm_mday, now->tm_mon + 1, now->tm_year + 1900, now->tm_hour, now->tm_min, now->tm_sec );
stefan1691 1:731bf468ab9f 39
stefan1691 1:731bf468ab9f 40 display.write(0, now->tm_min / 10);
stefan1691 1:731bf468ab9f 41 display.write(1, now->tm_min % 10);
stefan1691 1:731bf468ab9f 42 display.write(2, now->tm_sec / 10);
stefan1691 1:731bf468ab9f 43 display.write(3, now->tm_sec % 10);
stefan1691 1:731bf468ab9f 44
stefan1691 0:8107357917ce 45 wait(1);
stefan1691 0:8107357917ce 46 }
stefan1691 0:8107357917ce 47 }