Author Topic: bot help  (Read 3097 times)

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Offline santiagoTopic starter

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bot help
« on: January 30, 2009, 01:36:18 PM »
I build the headbot from the "junkbots,bugbots & bots on wheels"book, but it only seems to work
when i touch the power or enable line of the circuit with my finger, Why?

Why is it that If i touch the enable or ground connection it works but if i dont touch it, it doesnt?
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Offline pomprocker

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Re: bot help
« Reply #1 on: January 30, 2009, 01:53:12 PM »
I don't have the book otherwise I might be able to help. Do they have the plans for this online anywhere?


Maybe, its not grounded to the battery and your body is acting as a common ground? Not sure
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Offline santiagoTopic starter

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Re: bot help
« Reply #2 on: January 30, 2009, 03:02:01 PM »
I dont have a pic of the schematic. If someone does can you please uploaded.
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Offline HDL_CinC_Dragon

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Re: bot help
« Reply #3 on: January 30, 2009, 03:07:03 PM »
Is it a circuit that you have to solder yourself? If so then chances are you have a bad connection somewhere
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Offline santiagoTopic starter

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Re: bot help
« Reply #4 on: January 30, 2009, 04:11:03 PM »
yes it is a circuit you have to soder.
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Offline fuzzyt

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Re: bot help
« Reply #5 on: January 30, 2009, 11:01:43 PM »
I have the book but haven't built the headbot.  Seeing as the entire circuit is built in classic beam deadbug style, I suspect you may have a bad solder joint.  I would gently test with a multimeter.
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Offline galannthegreat

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Re: bot help
« Reply #6 on: January 30, 2009, 11:29:43 PM »
in my own experiences i had a problem with bridged connections, so check how it is all connected with a multimeter with continuity.

PS
also check if your photodiodes are oriented
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Offline HDL_CinC_Dragon

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Re: bot help
« Reply #7 on: January 31, 2009, 01:25:25 PM »
I probably should have asked another question here too >_<

Define "works". Does it only turn on when you jostle the power line? or does it just not move around and stuff?
Perhaps you could give a specific breakdown of whats happening?
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Offline Admin

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Re: bot help
« Reply #8 on: February 07, 2009, 11:21:48 AM »
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