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Calculating the day of week from a date

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This commit is contained in:
Rhys Weatherley
2012-06-11 10:05:24 +10:00
parent 00eea28357
commit fa7df64f52
4 changed files with 64 additions and 0 deletions
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5
libraries/RTC/examples/DumpRTC/DumpRTC.pde
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@@ -11,6 +11,10 @@ This example is placed into the public domain.
SoftI2C i2c(A4, A5);
DS3232RTC rtc(i2c);
const char *days[] = {
"Mon, ", "Tue, ", "Wed, ", "Thu, ", "Fri, ", "Sat, ", "Sun, "
};
const char *months[] = {
" Jan ", " Feb ", " Mar ", " Apr ", " May ", " Jun ",
" Jul ", " Aug ", " Sep ", " Oct ", " Nov ", " Dec "
@@ -52,6 +56,7 @@ void loop() {
Serial.println();
Serial.print("Date: ");
Serial.print(days[RTC::dayOfWeek(&date) - 1]);
Serial.print(date.day, DEC);
Serial.print(months[date.month - 1]);
Serial.print(date.year);

5
libraries/RTC/examples/TestRTC/TestRTC.pde
View File

@@ -38,6 +38,10 @@ DS3232RTC rtc(i2c);
char buffer[64];
size_t buflen;
const char *days[] = {
"Mon, ", "Tue, ", "Wed, ", "Thu, ", "Fri, ", "Sat, ", "Sun, "
};
const char *months[] = {
" Jan ", " Feb ", " Mar ", " Apr ", " May ", " Jun ",
" Jul ", " Aug ", " Sep ", " Oct ", " Nov ", " Dec "
@@ -192,6 +196,7 @@ void cmdDate(const char *args)
// Read the current date.
rtc.readDate(&date);
Serial.print(days[RTC::dayOfWeek(&date) - 1]);
Serial.print(date.day, DEC);
Serial.print(months[date.month - 1]);
Serial.println(date.year, DEC);