Subject:
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Re: Motors & handyboard
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Fri, 14 Feb 1997 21:31:49 GMT
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Original-From:
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MAR ERICSON <mar@cooper.edu#antispam#>
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Viewed:
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1252 times
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> Yesterday I tried to run a motor out of the HB. First I tried how much =
> current it needed with a multimeter and a 5V power source ... The result =
> 75mA.=20
EE Question:
How do you use a multimeter to measure the current?
I was told that you need a current probe to do this kind of thing.
??
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Message has 1 Reply:
 | | Re: Motors & handyboard
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| To measure current with an multimeter or ammeter (volt/ohm/etc.. meter) you must break the circuit at some point and put the meter in series with the circuit thus gapping the break. ie) +-----(+) METER (-)------+ | | | | (+) | POWER | (-) | | | | | (...) (27 years ago, 15-Feb-97, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | Motors & handyboard
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| Yesterday I tried to run a motor out of the HB. First I tried how much current it needed with a multimeter and a 5V power source ... The result 75mA. When I tried to run the motor from the HB, after turning on the motor at low speed (motor (0,20);) (...) (27 years ago, 14-Feb-97, to lugnet.robotics.handyboard)
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