Subject:
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Re: I think I fried my board!!
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Tue, 7 Jan 1997 13:19:44 GMT
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Original-From:
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Fred G. Martin <(fredm@media.mit.edu)AntiSpam()>
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Viewed:
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1583 times
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Yes it is probably the inductor. It acts as a fuse in many
situations.
You are lucky -- it could have been much worse.
-Fred
In your message you said:
> I need help figuring out what I did to my handyboard. I had it all
> assembled, tested, and working when one of the battery leads touched one of
> the solder spots on the board. A small puff of smoke rose from the board
> but I was able to disconnect the battery quickly. The board functions fine
> except for the following things;
>
> -Motor drivers 0 and 2 don't work at all.
> -The board works with power from the telephone cable but won't even turn on
> using the battery alone. Memory is restored when the battery is connected.
>
> I think the inductor was where the smoke came from because it has a dark
> brown color to it and I can't get a continuity reading through it. I was
> thinking about replacing the inductor to see if that was the problem but I
> can't find a place to buy just the one part. If anyone has any ideas on
> what to do or if someone has an inductor that they could spare I would love
> to hear from you. Thanks.
>
> Keith Soldavin
> kas219@email.psu.edu
>
>
>
>
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Message has 1 Reply:
 | | Handyboard IR Sensor question.
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| Thanks for your last response. Today we wrote and tested: Run motor 1 forward at half speed. Monitor the microswitch at digital port 7. If the switch closes (Hit the wall!) then Stop the motor BEEP Run motor 1 backwards full speed for 1 second. Shut (...) (28 years ago, 10-Jan-97, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | I think I fried my board!!
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| I need help figuring out what I did to my handyboard. I had it all assembled, tested, and working when one of the battery leads touched one of the solder spots on the board. A small puff of smoke rose from the board but I was able to disconnect the (...) (28 years ago, 7-Jan-97, to lugnet.robotics.handyboard)
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