Adrianfu
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Location: Yarraman Australia

A mistake, badly designed cobbler

Mon Feb 08, 2016 11:10 am

Being frugal with my hard earned cash (read cheap) i bought a cobbler off ebay for the low cost of $5. It arrived with the IDE plugs broken. Managed to find a cable in my junkbox and found that I cannot use pins 1and 2 the circuit board stops me being able to use.

Adrian

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topguy
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Location: Trondheim, Norway

Re: A mistake

Mon Feb 08, 2016 11:12 am

Cobbler ? IDE ?
Was there a question in there ?

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RaTTuS
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Re: A mistake

Mon Feb 08, 2016 11:14 am

to answer the unasked question - you should of returned the thing via ebay returns process
anything else and we'll need more info
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mikerr
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Re: A mistake

Mon Feb 08, 2016 11:54 am

Careful using an IDE cable, you should only use the 40 wire version (ATA33), not the newer thinner 80 wire ones (ATA133 UDMA).
In a PC the 80 pin cables enable faster transfers, but have internal grounding and will damage the pi !

Image
Use only the 40 wire one on the left !
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PeterO
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Re: A mistake

Mon Feb 08, 2016 11:56 am

OP might mean "IDC" not "IDE" (though "IDE" connectors are often "IDC" ;) )
PeterO
Discoverer of the PI2 XENON DEATH FLASH!
Interests: C,Python,PIC,Electronics,Ham Radio (G0DZB),1960s British Computers.
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Adrianfu
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Location: Yarraman Australia

Re: A mistake

Mon Feb 08, 2016 12:03 pm

was no question was just a comment.
attached is a picture of the Cobbler showing the pins 1 and 2. As you can see they are unusable.
Attachments
cobbler.jpg
cobbler.jpg (31.84 KiB) Viewed 1309 times

Adrianfu
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Location: Yarraman Australia

Re: A mistake

Mon Feb 08, 2016 12:06 pm

mikerr wrote:Careful using an IDE cable, you should only use the 40 wire version (ATA33), not the newer thinner 80 wire ones (ATA133 UDMA).
In a PC the 80 pin cables enable faster transfers, but have internal grounding and will damage the pi !

Image


Use only the 40 wire one on the left !
Thanks for the heads up.The one I got from my junkbox is the 80 wire version. I will put it back in junkbox.

Adrian

Adrianfu
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Location: Yarraman Australia

Re: A mistake

Mon Feb 08, 2016 12:08 pm

RaTTuS wrote:to answer the unasked question - you should of returned the thing via ebay returns process
anything else and we'll need more info
Was no unasked question. It was just a comment. I already contacted the eBay seller and waiting on reply.

Adrian

Adrianfu
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Location: Yarraman Australia

Re: A mistake

Mon Feb 08, 2016 12:09 pm

topguy wrote:Cobbler ? IDE ?
Was there a question in there ?
Was supposed to be IDC, autocorrect is now turned off.

Adrian

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PeterO
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Re: A mistake

Mon Feb 08, 2016 12:12 pm

Adrianfu wrote:was no question was just a comment.
attached is a picture of the Cobbler showing the pins 1 and 2. As you can see they are unusable.
Errrr What exactly am I supposed to be looking at that is broken ?

PeterO
Discoverer of the PI2 XENON DEATH FLASH!
Interests: C,Python,PIC,Electronics,Ham Radio (G0DZB),1960s British Computers.
"The primary requirement (as we've always seen in your examples) is that the code is readable. " Dougie Lawson

gordon77
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Re: A mistake

Mon Feb 08, 2016 12:15 pm

PeterO wrote:
Adrianfu wrote:was no question was just a comment.
attached is a picture of the Cobbler showing the pins 1 and 2. As you can see they are unusable.
Errrr What exactly am I supposed to be looking at that is broken ?

PeterO
The top 2 pins on the cobbler are blocked by the PCB so you cant plug into the bread board

Adrianfu
Posts: 45
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Location: Yarraman Australia

Re: A mistake

Mon Feb 08, 2016 12:20 pm

PeterO wrote:
Adrianfu wrote:was no question was just a comment.
attached is a picture of the Cobbler showing the pins 1 and 2. As you can see they are unusable.
Errrr What exactly am I supposed to be looking at that is broken ?

PeterO
Have a good look at the picture. Both pins 1 and 2 (3.3 and 5v) When the cobbler is insterted into a breadboard the 2 pins are hidden, that is I cannot insert a jumper cable into the rows the 2 pins are inserted into on the breadboard. The cobbler is not broken just badly designed. It is the cable that attaches to the Pi and the cobbler that is broken. The IDC is snapped either during packing or in the post.

Adrian
Attachments
cobbler.jpg
cobbler.jpg (31.84 KiB) Viewed 1259 times

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PeterO
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Re: A mistake

Mon Feb 08, 2016 12:23 pm

Ah , got you now :-)
PeterO
Discoverer of the PI2 XENON DEATH FLASH!
Interests: C,Python,PIC,Electronics,Ham Radio (G0DZB),1960s British Computers.
"The primary requirement (as we've always seen in your examples) is that the code is readable. " Dougie Lawson

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PeterO
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Re: A mistake

Mon Feb 08, 2016 12:33 pm

Mine looks like this...
Image
Looks like the change to V1.1 was not well planned ! Are you sure it is genuine ?

PeterO
Discoverer of the PI2 XENON DEATH FLASH!
Interests: C,Python,PIC,Electronics,Ham Radio (G0DZB),1960s British Computers.
"The primary requirement (as we've always seen in your examples) is that the code is readable. " Dougie Lawson

Adrianfu
Posts: 45
Joined: Tue Dec 01, 2015 7:13 am
Location: Yarraman Australia

Re: A mistake

Mon Feb 08, 2016 12:40 pm

PeterO wrote:Mine looks like this...
Image
Looks like the change to V1.1 was not well planned ! Are you sure it is genuine ?

PeterO
Doubt its genuine.I have looked at other cobblers since I discovered the problem y from a reputable supplier methinks. :)

Adrian

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