External control - complete solution?

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External control - complete solution?

Unread postby pint » Tue Oct 20, 2009 7:30 pm

Hello,

are there any pre-build solutions that can be used for external control? I would need two IR sensors, one for starting the stopwatch, other for stopping it. If I understand correctly, this could be connected through one COM port. Any ideas?

Thank you.
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Re: External control - complete solution?

Unread postby Stopwatch » Wed Oct 21, 2009 8:59 am

Yes, standard build can be used connecting 2 sensors in parallel.
Stopwatch
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Re: External control - complete solution?

Unread postby aussie phil » Thu Oct 29, 2009 9:55 am

I use multiple IR beams, I have them wired into the Talk buttons "micro switch" on a couple of walkie talkies "Ham Radio's" and on anothor Walkie talkie i have wired into the recieve LED which switches a transistor which inturn activates a relay for closing the rs232 pins. Works Great and i can have a IR beam positioned several kilometers away with no problems.
Regards Phil
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Re: External control - complete solution?

Unread postby David » Tue Dec 01, 2009 3:47 pm

I am not very technical and do not understand completely how I would be able to start and stop the stopwatch from an external position. Is there some hardware you could supply or explain exactly what I need to purchase that will allow me to do this?

Thanks
David
 


Re: External control - complete solution?

Unread postby David » Thu Dec 03, 2009 1:10 pm

Thanks for your reply, unfortunately I still do not know exactly what to do? What piece of hardware do I have to buy to control the stopper externally? Or do I not have to buy anything?

David
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Re: External control - complete solution?

Unread postby David » Thu Dec 03, 2009 2:41 pm

Creator wrote:http://www.xnotestopwatch.com/help/external_control.htm
viewtopic.php?f=3&t=884
viewtopic.php?f=3&t=707


Thanks for your reply, however I still do not know exactly what to do.

I need to be able to start and stop the timer from a position of 5-10 meters away from the computer. I understand that your software has the capability to do that but obviously some hardware will be needed that will trigger the on off. My questin is what hardware do I need to get and how would I connect that?

Thanks.

David
David
 

Re: External control - complete solution?

Unread postby Stopwatch » Thu Dec 03, 2009 7:05 pm

David wrote:I need to be able to start and stop the timer from a position of 5-10 meters away from the computer.

Who starts and stops the timer? Runners? You?
How? A simple push button would be enough?
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Re: External control - complete solution?

Unread postby David » Sat Dec 05, 2009 9:54 pm

Creator wrote:
David wrote:I need to be able to start and stop the timer from a position of 5-10 meters away from the computer.

Who starts and stops the timer? Runners? You?
How? A simple push button would be enough?

Yes, I would start and stop, and yes a simple push button would be enough.
David
 

Re: External control - complete solution?

Unread postby Stopwatch » Sun Dec 06, 2009 11:31 am

David wrote:Yes, I would start and stop, and yes a simple push button would be enough.

Then just buy a simple push button and connect its pair of contacts to 2 pins of COM port as stated at the picture. Modern PC might need USB to COM adapter.
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