omega1
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Micro USB power lead to open wires?

Fri Aug 09, 2013 2:51 pm

Hi all,

Does anyone know of a micro USB to 'open wires' cable that I can buy?

OR

Where can you buy a micro USB connector?

OR

Can I power my Pi (without soldering) via any other connector/port on the board (maybe GPIO)?

Thanks in advance.
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RaTTuS
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Re: Micro USB power lead to open wires?

Fri Aug 09, 2013 3:00 pm

you can power via the GPIO
but you do bypass the fuse
or even from the nornal USB
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omega1
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Re: Micro USB power lead to open wires?

Fri Aug 09, 2013 3:08 pm

Hi, thanks, waht are the GPIO connectors?

Is it 2 & 6 or 4 & 6?
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exartemarte
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Re: Micro USB power lead to open wires?

Fri Aug 09, 2013 3:14 pm

I think I would just cut a micro-usb cable in half rather than spend time searching for one. Even if you find a source I doubt if you'd save any money by the time you'd paid the postage and packing.

Yes, you can power the Pi via the 0v and 5v pins in the GPIO connector - with 5v, obviously - but don't get it the wrong way round or confuse the +5v and +3.3v pins - there is no protection!

Since you ask the question I'm guessing you may be new to all this. I would steer clear of direct connection to the GPIO connector, and home-made cables too for that matter, unless you are sure of what you're doing.

omega1
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Re: Micro USB power lead to open wires?

Fri Aug 09, 2013 3:18 pm

There are two pins marked as +5V (pin 2 and pin 4), what (if any) is the difference?
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RaTTuS
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Re: Micro USB power lead to open wires?

Fri Aug 09, 2013 3:22 pm

http://elinux.org/RPi_Low-level_periphe ... .28GPIO.29

DO NOT short +3V and +5V or you will get bye bye pi
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omega1
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Re: Micro USB power lead to open wires?

Fri Aug 09, 2013 3:25 pm

Are pins 2 and 4 the same then? Both +5V?
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RaTTuS
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Re: Micro USB power lead to open wires?

Fri Aug 09, 2013 3:37 pm

yes
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omega1
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Re: Micro USB power lead to open wires?

Fri Aug 09, 2013 4:58 pm

Thanks
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bbmonster
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Re: Micro USB power lead to open wires?

Fri Aug 09, 2013 5:08 pm

If you go cutting a micro usb cable route, i would buy a few from different vendors off ebay. You can usually get them really cheap. The reason for getting a few is beacause as mentioned in other post not all cables are equally made. Some might have wires too thin or connected crappily to the connector that the cable cannot supply enough current.

Hope that helps.

omega1
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Re: Micro USB power lead to open wires?

Sat Aug 17, 2013 12:45 pm

You were right, I went down the cut the cable route and only ordered the cheapest going. The cables are so thin I'm surprised it even works!

As you said, I'll but a few different ones...
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redhawk
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Re: Micro USB power lead to open wires?

Sat Aug 17, 2013 12:58 pm

Poundland and the 99p store sell USB cables usually advertised as Blackberry data cable or USB mobile phone charger adapter.
Just be aware these cables are usually of poor quality and could cause power losses unless cut near to the connector end or you solder thicker wires directly to the connector.

Richard S.

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mad-hatter
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Re: Micro USB power lead to open wires?

Sat Aug 17, 2013 3:07 pm

Hello,

Make your own (thick wires) cable.
http://uk.cellphoneshop.net/microusb.html

Regards

omega1
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Re: Micro USB power lead to open wires?

Sat Aug 17, 2013 3:25 pm

interesting, thanks!

I've ordered a couple to give the ma try, that was what I was looking for!
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