Yihui Xiong / Mbed 2 deprecated Arch_GroveRTC_Ex1

Clock

Dependencies:   DS1307 Grove_Serial_LCD mbed

main.cpp@0:06a98b973b14, 2013-12-09 (annotated)

Committer:
yihui
Date:
Mon Dec 09 08:46:52 2013 +0000
Revision:
0:06a98b973b14
initial

Who changed what in which revision?

UserRevisionLine numberNew contents of line
yihui 0:06a98b973b14 1 #include "mbed.h"
yihui 0:06a98b973b14 2 #include "SerialLCD.h"
yihui 0:06a98b973b14 3 #include "ds1307.h"
yihui 0:06a98b973b14 4
yihui 0:06a98b973b14 5 SerialLCD lcd(P1_13, P1_14); // Grove Serial LCD is connected to UART Tx and Rx pins
yihui 0:06a98b973b14 6 DS1307 rtc(P0_5, P0_4); // Grove RTC is connected to I2C SDA(P0_5) and SCL(P0_4)
yihui 0:06a98b973b14 7
yihui 0:06a98b973b14 8 int main() {
yihui 0:06a98b973b14 9 const char *week[] = {"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"};
yihui 0:06a98b973b14 10 int sec, min, hour, day, date, month, year;
yihui 0:06a98b973b14 11 char strBuffer[16];
yihui 0:06a98b973b14 12
yihui 0:06a98b973b14 13 lcd.begin();
yihui 0:06a98b973b14 14 lcd.print("Clock");
yihui 0:06a98b973b14 15 rtc.start_clock();
yihui 0:06a98b973b14 16 rtc.gettime(&sec, &min, &hour, &day, &date, &month, &year);
yihui 0:06a98b973b14 17 if (0 == year) {
yihui 0:06a98b973b14 18 rtc.settime(0, 0, 0, 4, 1, 1, 2014 % 100); // Jan 1st, 2014, Wed, 00:00:00
yihui 0:06a98b973b14 19 }
yihui 0:06a98b973b14 20
yihui 0:06a98b973b14 21 while(1) {
yihui 0:06a98b973b14 22 rtc.gettime(&sec, &min, &hour, &day, &date, &month, &year);
yihui 0:06a98b973b14 23 snprintf(strBuffer, sizeof(strBuffer), "%d-%d-%d %s", 2000 + year, month, date, week[day]);
yihui 0:06a98b973b14 24 lcd.setCursor(0, 0);
yihui 0:06a98b973b14 25 lcd.print(strBuffer);
yihui 0:06a98b973b14 26 snprintf(strBuffer, sizeof(strBuffer), "%d:%d:%d", hour, min, sec);
yihui 0:06a98b973b14 27 lcd.setCursor(0, 1);
yihui 0:06a98b973b14 28 lcd.print(strBuffer);
yihui 0:06a98b973b14 29 wait(0.5);
yihui 0:06a98b973b14 30 }
yihui 0:06a98b973b14 31 }
yihui 0:06a98b973b14 32
yihui 0:06a98b973b14 33