Sleep function... can be used as a timer?
Archiver
Posts: 46,084
Hello,
More than likely a stupid question, but... I want to have my BS2 wake up from
sleep every hour on the hour do something, then go back to sleep. I need exactly
24 cycles per day for one year. How accurate is the sleep function as a timer.
At the end of the year will it have lost or gained time?
Richard
[noparse][[/noparse]Non-text portions of this message have been removed]
More than likely a stupid question, but... I want to have my BS2 wake up from
sleep every hour on the hour do something, then go back to sleep. I need exactly
24 cycles per day for one year. How accurate is the sleep function as a timer.
At the end of the year will it have lost or gained time?
Richard
[noparse][[/noparse]Non-text portions of this message have been removed]
Comments
project.
I believe the stamp's timer is accurate to +/- 1% I found mine were off
about 1 minute per hour... Wouldn't work in your application... (it would be
off by 146 hours by the end of the year) I don't have the link here (at
work) but I do have a link at home which shows how to connect a crystal
resulting in much more accurate timing. Maybe someone here knows a better
way. By the way, I decided to just use the onboard timer for my
application.
Thanks,
John
Original Message
From: Richard R. [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=HEp6MR6raUYfJcokrBUsvam-pbheaWy1mYZC--0MuZF_P55vTRvy4a7HuDK3g0yiIrDod3lXP06ZKTrayn4]rryerson@o...[/url
Sent: Wednesday, December 05, 2001 6:48 PM
To: [noparse][[/noparse]basicstamps]
Subject: [noparse][[/noparse]basicstamps] Sleep function... can be used as a timer?
Hello,
More than likely a stupid question, but... I want to have my BS2 wake up
from sleep every hour on the hour do something, then go back to sleep. I
need exactly 24 cycles per day for one year. How accurate is the sleep
function as a timer. At the end of the year will it have lost or gained
time?
Richard
[noparse][[/noparse]Non-text portions of this message have been removed]
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
Richard
Original Message
From: "John Walton" <john@l...>
To: <basicstamps@yahoogroups.com>
Sent: Thursday, December 06, 2001 1:19 PM
Subject: RE: [noparse][[/noparse]basicstamps] Sleep function... can be used as a timer?
> Not a stupid question... I asked the same thing when I started my 'clock'
> project.
>
> I believe the stamp's timer is accurate to +/- 1% I found mine were off
> about 1 minute per hour... Wouldn't work in your application... (it would
be
> off by 146 hours by the end of the year) I don't have the link here (at
> work) but I do have a link at home which shows how to connect a crystal
> resulting in much more accurate timing. Maybe someone here knows a better
> way. By the way, I decided to just use the onboard timer for my
> application.
>
> Thanks,
>
> John
>
>
Original Message
> From: Richard R. [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=5Tf7mTgpF29En2AupHaKVx4mq-SHL75sTjoxIHgfnvT7Me9Clsg_A98QqocQITm0MZj89aue5evAIoHA]rryerson@o...[/url
> Sent: Wednesday, December 05, 2001 6:48 PM
> To: [noparse][[/noparse]basicstamps]
> Subject: [noparse][[/noparse]basicstamps] Sleep function... can be used as a timer?
>
>
> Hello,
> More than likely a stupid question, but... I want to have my BS2 wake up
> from sleep every hour on the hour do something, then go back to sleep. I
> need exactly 24 cycles per day for one year. How accurate is the sleep
> function as a timer. At the end of the year will it have lost or gained
> time?
>
> Richard
>
>
> [noparse][[/noparse]Non-text portions of this message have been removed]
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
> Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the Subject and
Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
>
>
>