Tu Tri Huynh / Mbed OS DISCO-F746NG_light_control_system_tth

School project.

Dependencies:   Timezone NTPClient BSP_DISCO_F746NG Grove_temperature

time_functions.h@20:9d4450357ce7, 2021-01-21 (annotated)

Committer:
tuxx0046
Date:
Thu Jan 21 12:43:03 2021 +0000
Revision:
20:9d4450357ce7
Parent:
19:a23c25da398e 
Updated libraries used section in comments in main.cpp

Who changed what in which revision?

UserRevisionLine numberNew contents of line
tuxx0046 17:01ebfd8ab87a 1 /**
tuxx0046 17:01ebfd8ab87a 2 @file time_functions.h
tuxx0046 17:01ebfd8ab87a 3 @author Tu Tri Huynh
tuxx0046 17:01ebfd8ab87a 4 @date January 20, 2021
tuxx0046 17:01ebfd8ab87a 5 @brief Functions related to getting and displaying the time
tuxx0046 17:01ebfd8ab87a 6 */
tuxx0046 17:01ebfd8ab87a 7
tuxx0046 18:11db143c0502 8 #include "Timezone.h"
tuxx0046 18:11db143c0502 9
tuxx0046 17:01ebfd8ab87a 10 /**
tuxx0046 17:01ebfd8ab87a 11 Connects to an NTP server and updates the time to display.
tuxx0046 17:01ebfd8ab87a 12 Currently only works with UTC time.
tuxx0046 17:01ebfd8ab87a 13 1/20/2021
tuxx0046 17:01ebfd8ab87a 14 */
tuxx0046 17:01ebfd8ab87a 15 void time_update_current_time()
tuxx0046 17:01ebfd8ab87a 16 {
tuxx0046 17:01ebfd8ab87a 17 char current_time[32];
tuxx0046 17:01ebfd8ab87a 18 /// Ethernet connection declared in main.cpp
tuxx0046 17:01ebfd8ab87a 19 eth.connect();
tuxx0046 17:01ebfd8ab87a 20
tuxx0046 17:01ebfd8ab87a 21 if (ntp.setTime("0.pool.ntp.org") == 0)
tuxx0046 17:01ebfd8ab87a 22 {
tuxx0046 19:a23c25da398e 23 printf("\nTime successfully retrieved\n");
tuxx0046 17:01ebfd8ab87a 24 }
tuxx0046 17:01ebfd8ab87a 25 else
tuxx0046 17:01ebfd8ab87a 26 {
tuxx0046 19:a23c25da398e 27 printf("\nFailed to retrieve time from NTP server.\n");
tuxx0046 17:01ebfd8ab87a 28 }
tuxx0046 17:01ebfd8ab87a 29
tuxx0046 17:01ebfd8ab87a 30 eth.disconnect();
tuxx0046 18:11db143c0502 31
tuxx0046 18:11db143c0502 32 time_t dk_time;
tuxx0046 18:11db143c0502 33 TimeChangeRule dk_standardtime = {"DNT", Last, Sat, Oct, 3, 60};
tuxx0046 18:11db143c0502 34 //TimeChangeRule dk_daylight = {"DST", Last, Sun, Mar, 2, 120};
tuxx0046 18:11db143c0502 35 Timezone danish_time(dk_standardtime);
tuxx0046 18:11db143c0502 36 //Timezone danish_time(dk_daylight, dk_standardtime);
tuxx0046 18:11db143c0502 37
tuxx0046 18:11db143c0502 38 //dk_tid = danish_timetoLocal(ctTime);
tuxx0046 18:11db143c0502 39
tuxx0046 17:01ebfd8ab87a 40 while(1)
tuxx0046 17:01ebfd8ab87a 41 {
tuxx0046 17:01ebfd8ab87a 42 time_t seconds = time(NULL);
tuxx0046 18:11db143c0502 43 dk_time = danish_time.toLocal(seconds);
tuxx0046 17:01ebfd8ab87a 44
tuxx0046 17:01ebfd8ab87a 45 char buffer[32];
tuxx0046 18:11db143c0502 46 strftime(buffer, 32, "%I:%M %p\n", localtime(&dk_time));
tuxx0046 17:01ebfd8ab87a 47 //printf("Time as a custom formatted string = %s", buffer);
tuxx0046 17:01ebfd8ab87a 48 sprintf(current_time, "%s", buffer);
tuxx0046 17:01ebfd8ab87a 49 lcd_update_upper_left(current_time);
tuxx0046 17:01ebfd8ab87a 50
tuxx0046 17:01ebfd8ab87a 51 ThisThread::sleep_for(20s);
tuxx0046 17:01ebfd8ab87a 52 }
tuxx0046 17:01ebfd8ab87a 53 }