Hey Jim,
See my other post. RMS voltage is often not enough to diagnose a potential
problem, sadly. I can send you a PS that will give you 5.0-5.1 and destroy
your data cards.
Colin
On Mon, Feb 3, 2014 at 1:59 PM, Jim Lill <j...@jimlill.com> wrote:
>
> I read about the 5V problem on R Pi before I got my first one so have
> checked my various wall-warts by measuring the 5V right on the Pi under
> load. This can be done on pins on the GPIO connector, see
>
> http://www.hobbytronics.co.uk/raspberry-pi-gpio-pinout
>
> -Jim
>
>
> On 2/3/2014 4:49 PM, Vajk Fekete wrote:
>
> One of my recent lessons learned: a lot of small devices have a mini usb
> connector for power. And they consume around say 500mA. And the cheap usb
> cables, even the short ones have so little copper in them that 500mA may
> cause 2-300mV drop on a 6in cable.
>
> Vajk
>
>
> On Mon, Feb 3, 2014 at 10:43 PM, Ziggy <zi...@pumpkinbrook.com> wrote:
>
>> Well. It would certainly be interesting to understand THAT failure mode
>> :)
>> Thanks for getting back to us and letting us know your solution. So many
>> times you never hear or someone just says :N/M I fixed it.
>>
>> Paul
>>
>> On 02/03/2014 11:12 AM, Colin Tinker wrote:
>>
>> Just to let you all know I sorted this one. New power supply for the
>> Raspberry Pi was not good enough for the job and could no cope for some
>> reason when I added a long cable to the 1-wire network.
>>
>> Colin
>>
>>
>>
>>
>
>
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