5V pin reads too low with external power supply, arduino not working. November 20, 2018 09:50AM |
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Re: 5V pin reads too low with external power supply, arduino not working. November 20, 2018 10:44AM |
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Re: 5V pin reads too low with external power supply, arduino not working. November 20, 2018 11:07AM |
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Re: 5V pin reads too low with external power supply, arduino not working. November 20, 2018 03:14PM |
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Quote
patrik_g
Hi all,
I have the following setup with these symptoms:
1. USB connection, no external power supply: blink example works. 5V-GND reads 5V
2. External power (12V) via ramps 1.4: led blinks fast and randomly. 5V-GND reads 3V, and VIN-GND reads 12V.
In setup 2, the original code we're using is also not working (running a fan, running steppers, etc... )
What can cause this behaviour? And can I test on something if there is something broken?
There are no stepper drivers or other components connected, and it used to work.
Thanks!
Re: 5V pin reads too low with external power supply, arduino not working. November 21, 2018 03:39AM |
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Re: 5V pin reads too low with external power supply, arduino not working. November 21, 2018 04:07AM |
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Re: 5V pin reads too low with external power supply, arduino not working. November 21, 2018 04:27AM |
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Re: 5V pin reads too low with external power supply, arduino not working. November 22, 2018 09:51AM |
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