76 lines
1.6 KiB
Arduino
76 lines
1.6 KiB
Arduino
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#include <Wire.h>
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#include <TimeLib.h>
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#include <DS1307RTC.h>
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const char *monthName[12] = {
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"Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
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};
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tmElements_t tm;
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void setup() {
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bool parse=false;
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bool config=false;
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// get the date and time the compiler was run
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if (getDate(__DATE__) && getTime(__TIME__)) {
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parse = true;
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// and configure the RTC with this info
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if (RTC.write(tm)) {
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config = true;
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}
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}
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Serial.begin(9600);
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while (!Serial) ; // wait for Arduino Serial Monitor
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delay(200);
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if (parse && config) {
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Serial.print("DS1307 configured Time=");
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Serial.print(__TIME__);
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Serial.print(", Date=");
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Serial.println(__DATE__);
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} else if (parse) {
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Serial.println("DS1307 Communication Error :-{");
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Serial.println("Please check your circuitry");
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} else {
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Serial.print("Could not parse info from the compiler, Time=\"");
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Serial.print(__TIME__);
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Serial.print("\", Date=\"");
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Serial.print(__DATE__);
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Serial.println("\"");
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}
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}
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void loop() {
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}
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bool getTime(const char *str)
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{
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int Hour, Min, Sec;
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if (sscanf(str, "%d:%d:%d", &Hour, &Min, &Sec) != 3) return false;
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tm.Hour = Hour;
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tm.Minute = Min;
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tm.Second = Sec;
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return true;
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}
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bool getDate(const char *str)
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{
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char Month[12];
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int Day, Year;
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uint8_t monthIndex;
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if (sscanf(str, "%s %d %d", Month, &Day, &Year) != 3) return false;
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for (monthIndex = 0; monthIndex < 12; monthIndex++) {
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if (strcmp(Month, monthName[monthIndex]) == 0) break;
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}
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if (monthIndex >= 12) return false;
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tm.Day = Day;
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tm.Month = monthIndex + 1;
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tm.Year = CalendarYrToTm(Year);
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return true;
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}
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