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Forum Index : Microcontroller and PC projects : SD-Card, help me get this to work! (UBW32)

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TassyJim

Guru

Joined: 07/08/2011
Location: Australia
Posts: 6283
Posted: 11:29pm 27 Aug 2019
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I agree, cut the extra components off and I don't see the earth connection to the body of the holder.

Jim
VK7JH
MMedit
 
Decoy
Senior Member

Joined: 02/08/2019
Location: Denmark
Posts: 109
Posted: 05:28pm 03 Sep 2019
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Okay, guys, it is working now.

I tried a lot of stuff, but I think the culprit was a cold solder joint on one of the connector legs on the UBW32. I resoldered them all, after which it worked. At the same time I used a breadboard power-thingy, and used the 5V from that instead of USB.

But my thoughts go to the soldering  

Thanks for all your help, but it was probably my fault!

As a side note, I cannot save - it says that the SD is write protected. Will look into that!
Edited 2019-09-04 03:43 by Decoy
 
ceptimus
Senior Member

Joined: 05/07/2019
Location: United Kingdom
Posts: 130
Posted: 08:49pm 03 Sep 2019
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The cannot save thing is one of those two pins I was telling you to ground.  One of those pins is used to detect 'card present' and the other 'write protect'.

Proper working SD card adapters have two tiny switches: one senses a card inserted and the other senses the little sliding plastic 'write protect' tab on the side of the SD card.

I forget which way the write protect input works - maybe it has to be grounded, or maybe left floating.  Anyway, you only have four possibilities to try to find what you need that indicates 'card present and not write protected'.
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Edited 2019-09-04 06:51 by ceptimus
 
ceptimus
Senior Member

Joined: 05/07/2019
Location: United Kingdom
Posts: 130
Posted: 08:59pm 03 Sep 2019
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Ooops, wrong thread.  
Edited 2019-09-04 07:00 by ceptimus
 
Decoy
Senior Member

Joined: 02/08/2019
Location: Denmark
Posts: 109
Posted: 04:51pm 10 Sep 2019
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Oops, I totally forgot to answer!

It works now! I love it :)
Edited 2019-09-11 02:57 by Decoy
 
Poppy

Guru

Joined: 25/07/2019
Location: Germany
Posts: 486
Posted: 06:21pm 10 Sep 2019
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What exactly does work now?

Did you modify (cut off) this chinese sd module or did you finally get a blank sd socket?

Could you please show a picture, I would really like to see your complete setup.

Andre ... such a GURU?
 
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