RAMPS and arduino mega 2560 crazy power problems December 13, 2015 12:36AM |
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Re: RAMPS and arduino mega 2560 crazy power problems December 13, 2015 01:37AM |
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Re: RAMPS and arduino mega 2560 crazy power problems December 13, 2015 04:22AM |
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Re: RAMPS and arduino mega 2560 crazy power problems December 13, 2015 05:52AM |
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Quote
nophead
If the USB cable gets hot there must be significant current through it. I would suspect a difference in ground potential between your 12V PSU and your computer. Measure the voltage between them before they are connected.
Re: RAMPS and arduino mega 2560 crazy power problems December 13, 2015 03:50PM |
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Re: RAMPS and arduino mega 2560 crazy power problems December 13, 2015 03:55PM |
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Re: RAMPS and arduino mega 2560 crazy power problems December 13, 2015 06:33PM |
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Re: RAMPS and arduino mega 2560 crazy power problems December 13, 2015 08:40PM |
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Re: RAMPS and arduino mega 2560 crazy power problems December 13, 2015 10:46PM |
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Re: RAMPS and arduino mega 2560 crazy power problems December 13, 2015 11:09PM |
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Re: RAMPS and arduino mega 2560 crazy power problems December 14, 2015 12:17AM |
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Re: RAMPS and arduino mega 2560 crazy power problems December 14, 2015 05:27PM |
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Re: RAMPS and arduino mega 2560 crazy power problems December 14, 2015 06:20PM |
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Re: RAMPS and arduino mega 2560 crazy power problems December 14, 2015 10:13PM |
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Quote
dc42
The typical cause of that is a bad or missing connection between the electronics -ve power input and the PSU -ve output. So the current finds an alternative route via the mains ground cables of the PSU and the PC, and the ground conductor in the USB cable.
Re: RAMPS and arduino mega 2560 crazy power problems December 15, 2015 04:23AM |
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Re: RAMPS and arduino mega 2560 crazy power problems April 06, 2018 03:38AM |
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