[Lab] Cable Recommendations

[Kirk Sutherland]

And by 500Mhz I of course mean 500 multiple Hz :D
(Thanks Richard!)
On Jan 14, 2014 4:31 PM, "Kirk Sutherland" <kirk.sutherland at gmail.com>
wrote:

> Hi Strake and Jim!
> Thanks for the reply.
>
> Strake - The switching freq for an Arduino PWM signal is about 500 MHz.
>
> Jim - The idea of using cat5 (or 6) is very appealing as I have a lot of
> it and it's cheap from Monoprice :) I have four conductors to worry about -
> a +12 V line and three PWM grounds. To take advantage of the twisted pair
> in the cat 5 would I put a +12 line and ground together? In effect use 3
> twisted pair, 3 +12V and 3 PWM grounds?
>
> On paper I am seeing I could be pushing 2.5 amps but I don't think this is
> the case in reality as the PWM makes it much less - I will measure this
> tonight.
>
> Any other thoughts?
> Thanks again!
> Kirk
>
> On Sun, Jan 12, 2014 at 12:28 AM, Jim Kiskis <jim.kiskis at gmail.com> wrote:
>
>>  I have had good results using cat5 cable as it's somewhat shielded and
>> the wires are twisted for signal protection
>>
>> Sent from my iPad
>>
>> On Jan 11, 2014, at 9:37 PM, Kirk Sutherland <kirk.sutherland at gmail.com>
>> wrote:
>>
>>   Hi Modlabers,
>> I was wondering if anyone here has experience with or knows if I need a
>> special / shielded cable to run a 12V PWM signal about 20 - 30 feet. It
>> will be driving an LED strip (2m of RGB 5050's). I have not done this
>> before and was wondering if I could get away with something cheap like 4
>> conductor telephone cable or if that will cause enough signal degradation
>> that it could mess with the colours. The LED driving circuitry can't be
>> closer, so that isn't an option.
>> Any info would be great!
>> Thanks,
>> Kirk
>>
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