Zoltan Hudak
/
Clock_Hello
Demo for the Clock library (real time clock driven by a Ticker).
main.cpp
- Committer:
- hudakz
- Date:
- 2015-10-24
- Revision:
- 1:0e2956eaae94
- Parent:
- 0:81acb52fed21
- Child:
- 2:0fcd1b86588b
File content as of revision 1:0e2956eaae94:
/** * Demonstrates how to use the Clock library * * Note: It's a software implemented Real Time Clock. No external hardware (like DS1307 or DS3231 or etc.) is needed. * */ #include "mbed.h" #include "Clock.h" Serial serial(USBTX, USBRX); Clock rtc; // Create an instance of Clock class (set to 00:00:00 January 1, 1970) // Create some alarm times time_t alarm1 = Clock::asTime(2015, 3, 24, 11, 36, 15); // year, month (1 stands for Jan etc.), day of month, hour, minute, second time_t alarm2 = Clock::asTime(2015, 3, 24, 11, 37, 30); // year, month (1 stands for Jan etc.), day of month, hour, minute, second volatile bool ticked = false; // tick flag /** * @brief Clock tick event handler (called once a second) * @note Keep it as short as possible. * @param * @retval */ void onClockTick(void) { ticked = true; } int main() { rtc.attach(onClockTick); // attach a handler function to the rtc's tick event // // Set rtc for instance to 2015, March, 24th, 11 hours, 35 minutes, 45 seconds // rtc.set(2015, 3, 24, 11, 35, 45); // year, month (1 stands for Jan etc.), day of month, hour, minute, second while (true) { if(ticked == true) { ticked = false; // clear the flag for next use // // Draw (update) clock hands on a graphical display // or show some time related information .. // serial.printf("==================================================\r\n"); //time_t time = time(NULL); // you can call C library time function if you like time_t time = rtc.time(); // or Clock function serial.printf("Time as seconds since January 1, 1970 = %d\r\n", time); serial.printf("Time as a basic string = %s\r\n", ctime(&time)); // // Use custom format: // char buffer[32]; strftime(buffer, 32, "%I:%M %p", localtime(&time)); serial.printf("Time as a custom formatted string = %s\r\n", buffer); // // Design your own format: // serial.printf("Date: %.4d-%.2d-%.2d\r\n", rtc.year(), rtc.mon(), rtc.mday()); serial.printf("Time: %.2d:%.2d:%.2d\r\n", rtc.hour(), rtc.min(), rtc.sec()); // // Perform periodical tasks: // if(rtc.sec() % 10 == 0) { serial.printf("\r\n Called each 10 seconds\r\n\r\n"); } if(rtc.sec() == 0) { serial.printf("\r\n Called each minute.\r\n\r\n"); if(rtc.min() % 5 == 0) serial.printf("\r\n Called each 5 minutes\r\n"); if(rtc.min() == 0) serial.printf("\r\n Called each hour\r\n"); if(rtc.hour() == 0) serial.printf("\r\n Called at midnight\r\n"); } // // Trigger alarms: // if(rtc.time() == alarm1) { serial.printf("\r\n Alarm1 triggered!\r\n\r\n"); } if(rtc.time() == alarm2) { serial.printf("\r\n Alarm2 triggered!\r\n\r\n"); } } } }