Jerry ZJ / Mbed 2 deprecated Internet_Clock

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Dependencies:   EthernetInterface NTPClient mbed-rtos mbed

Fork of Internet_LCD_Clock by jim hamblen

Internet_LCD_Clock.cpp@2:ec0b6a5ccef7, 2017-04-07 (annotated)

Committer:
jerryzj
Date:
Fri Apr 07 14:11:00 2017 +0000
Revision:
2:ec0b6a5ccef7
Parent:
1:09fcc9b81f23 
get internet time

Who changed what in which revision?

UserRevisionLine numberNew contents of line
4180_1 0:5c5226aac712 1 #include "mbed.h"
jerryzj 2:ec0b6a5ccef7 2 #include "EthernetInterface.h"
4180_1 0:5c5226aac712 3 #include "NTPClient.h"
jerryzj 2:ec0b6a5ccef7 4
jerryzj 2:ec0b6a5ccef7 5 DigitalIn Switch(SW2);
4180_1 0:5c5226aac712 6 // Internet of Things clock example: LCD time is set via internet NTP time server
jerryzj 2:ec0b6a5ccef7 7 EthernetInterface eth;
4180_1 0:5c5226aac712 8 NTPClient ntp;
4180_1 0:5c5226aac712 9
4180_1 0:5c5226aac712 10 int main() {
jerryzj 2:ec0b6a5ccef7 11 //system time structure
4180_1 0:5c5226aac712 12 time_t ctTime;
jerryzj 2:ec0b6a5ccef7 13
4180_1 0:5c5226aac712 14 // lcd.printf prints to LCD display;
jerryzj 2:ec0b6a5ccef7 15 printf("Get IP addr...\r\n");
jerryzj 2:ec0b6a5ccef7 16 eth.init(); //Use DHCP
jerryzj 2:ec0b6a5ccef7 17 eth.connect();
jerryzj 2:ec0b6a5ccef7 18 printf("IP Address-a is %s\r\n", eth.getIPAddress());
jerryzj 2:ec0b6a5ccef7 19 printf("Reading Time...\r\n");
4180_1 0:5c5226aac712 20 //specify time server URL
jerryzj 2:ec0b6a5ccef7 21 TCPSocketConnection sock;
jerryzj 2:ec0b6a5ccef7 22 sock.connect("tock.stdtime.gov.tw", 123);
4180_1 0:5c5226aac712 23 //Read time from server
jerryzj 2:ec0b6a5ccef7 24 ntp.setTime("tock.stdtime.gov.tw");
jerryzj 2:ec0b6a5ccef7 25 printf("Time set\n");
4180_1 0:5c5226aac712 26 //Delay for human time to read LCD display
4180_1 0:5c5226aac712 27 wait(1);
4180_1 0:5c5226aac712 28 while (1) {
jerryzj 2:ec0b6a5ccef7 29 if(Switch==0){
jerryzj 2:ec0b6a5ccef7 30 // loop and periodically update the LCD's time display
jerryzj 2:ec0b6a5ccef7 31 ctTime = time(NULL);
jerryzj 2:ec0b6a5ccef7 32 printf("UTC: %s\r\n", ctime(&ctTime));
jerryzj 2:ec0b6a5ccef7 33 wait(.25);
jerryzj 2:ec0b6a5ccef7 34 }
4180_1 0:5c5226aac712 35 }
4180_1 0:5c5226aac712 36 }