Hello there!
I want to make a clock, with 4 digits 7 segments display. I have the TimeAlarms library from the playground. I know how to use the display. My question is, how to make the display to show the digit "1" when it is 1 o'clock (for example)? Do i need to make another library where i list how to "write" every digit?
You can give better examples.
Is digit 1 on the right hand side?
Do you want this?
0100
or
100
You can write chunks of code in functions then call those functions.
.
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There is the code:
/*
* TimeAlarmExample.pde
*
* This example calls alarm functions at 8:30 am and at 5:45 pm (17:45)
* and simulates turning lights on at night and off in the morning
* A weekly timer is set for Saturdays at 8:30:30
*
* A timer is called every 15 seconds
* Another timer is called once only after 10 seconds
*
* At startup the time is set to Jan 1 2011 8:29 am
*/
#include <Time.h>
#include <TimeAlarms.h>
void setup()
{
Serial.begin(9600);
setTime(8,29,0,1,1,11); // set time to Saturday 8:29:00am Jan 1 2011
// create the alarms
}
void loop(){
digitalClockDisplay();
Alarm.delay(1000); // wait one second between clock display
}
void digitalClockDisplay()
{
// digital clock display of the time
Serial.print(hour());
printDigits(minute());
printDigits(second());
Serial.println();
}
void printDigits(int digits)
{
Serial.print(":");
if(digits < 10)
Serial.print('0');
Serial.print(digits);
}
Ok i gave poor example, sorry.
What i ment is, if the time is 13:30, i want the display to shoy the same thing (13:30)
The time library has an AM PM function.
If it is PM, add 1200 to your time.
I thought the time in the library was already 24 hour format.
It has a 12 hour format function:
hourFormat12(); // The hour now in 12 hour format