Slick way to see if the stamp is still working? ??
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Posts: 46,084
How about sleep for shorter period say 30 seconds, wakeup pulse out to an
LED for 1/2 a second then go to sleep again. This should save considerable
battery power and still give an indication that it is still alive.
Original Message
From: John Walton [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=0JW_sIsmI5-Is6BvORTfyZNtylsPHC51GoCLwntj8aW0SRl7Q6ZO78x-m3YfWzFZaatOn2UGj1qfgVA]john@l...[/url
Sent: Thursday, October 18, 2001 10:05 AM
To: Basic Stamps
Subject: [noparse][[/noparse]basicstamps] Slick way to see if the stamp is still working???
My current stamp project uses a stamp to sleep for a long period of time (3
hours), wake up, open a solenoid for about 10 seconds, then sleep again. My
question is this:
Is there any way to tell when I check the stamp while it is running if
everything is still ok? This project runs off of batteries, so I need to
conserve every bit of power I can. Otherwise I would just put a LED on the
project, that could be my indicator.
Anyone have a slick idea on how to check to make sure everything is still
running, short of waiting up to 3 hours to see if the solenoid opens?
Thanks,
John
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LED for 1/2 a second then go to sleep again. This should save considerable
battery power and still give an indication that it is still alive.
Original Message
From: John Walton [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=0JW_sIsmI5-Is6BvORTfyZNtylsPHC51GoCLwntj8aW0SRl7Q6ZO78x-m3YfWzFZaatOn2UGj1qfgVA]john@l...[/url
Sent: Thursday, October 18, 2001 10:05 AM
To: Basic Stamps
Subject: [noparse][[/noparse]basicstamps] Slick way to see if the stamp is still working???
My current stamp project uses a stamp to sleep for a long period of time (3
hours), wake up, open a solenoid for about 10 seconds, then sleep again. My
question is this:
Is there any way to tell when I check the stamp while it is running if
everything is still ok? This project runs off of batteries, so I need to
conserve every bit of power I can. Otherwise I would just put a LED on the
project, that could be my indicator.
Anyone have a slick idea on how to check to make sure everything is still
running, short of waiting up to 3 hours to see if the solenoid opens?
Thanks,
John
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Comments
Why not monitor one and build a pulse-stretcher to flash a low-power LED.
Original Message
> How about sleep for shorter period say 30 seconds, wakeup pulse out to an
> LED for 1/2 a second then go to sleep again. This should save
considerable
> battery power and still give an indication that it is still alive.
> My current stamp project uses a stamp to sleep for a long period of time
(3
> hours), wake up, open a solenoid for about 10 seconds, then sleep again.
My
> question is this:
>
> Is there any way to tell when I check the stamp while it is running if
> everything is still ok? This project runs off of batteries, so I need to
> conserve every bit of power I can. Otherwise I would just put a LED on
the
> project, that could be my indicator.
>
> Anyone have a slick idea on how to check to make sure everything is still
> running, short of waiting up to 3 hours to see if the solenoid opens?
>The output pins are gonna blip every so often when the chip is asleep, no?
I would agree.
>Why not monitor one and build a pulse-stretcher to flash a low-power LED.
Umm, got an English version of that laying around? I'm pretty new around
here [noparse]:)[/noparse]
I knew you would have a good idea, I'm still amazed at the suggestions you
had for the robot guy trying to keep his machine upright.
Thanks,
John
stretch the duration of this blip enough that you can see an LED flash. A
555 can be used for this if I remember right.
Original Message
> >The output pins are gonna blip every so often when the chip is asleep,
no?
>
> I would agree.
>
>
> >Why not monitor one and build a pulse-stretcher to flash a low-power LED.
>
>
> Umm, got an English version of that laying around? I'm pretty new around
> here [noparse]:)[/noparse]
>
> I knew you would have a good idea, I'm still amazed at the suggestions you
> had for the robot guy trying to keep his machine upright.