help on control wiring

Projects General Guidance
1

i would like to get some input on what wires i can run together with cat6 4 pair for controlling the following items:

4 LED's
audio input (Sparkfun SoundDetector)
10K pot
button read input (1 momentary push button)
+5v
gnd

i know the power needs to be seperate but can i use audio input, button read and pot in same run of cat6
without crosstalk or bleedover???
the cat6 has the plastic separator between the pairs but is that enough to create a barrier? i would like to use the cat6 since it is all i have now. if there is any recommendations on cabling, please provide.
i basically have 4 pin headers for connectors from main board to secondary board with above items on it.
header #1 - 4 leds sharing ground with #2
header #2 - pot, dimmer, 5v and gnd
header #3 - envelope signal, 5v and gnd

2

What distance are you requiring this to be?

As you will be using low voltage and I assume low current (indicator LEDS?) there is no need to separate power and other circuits except for the audio that may require screened cable.

What are you doing with the audio?

Weedpharma

3

I second what weedpharma said. Separate out the audio and use your the cat 6 (or even cat 5) for the rest. Assuming the length is not too great. You're not going all the way across a college campus with this are you?

4

it is for my car lighting system i posted about earlier in general discussion
basically the main board is in a box next to battery under hood and the cables will be run through firewall to dash area. +/- 6 feet

in the post earlier i had everything on separate wires sitting next to each other testing it. now i need to run the cables and get set inside the car.

i am asking cause the sound detector i built works great on bench with full system but when connecting at the car it tends to act like it is picking up loud noise most of the time even though the ambient noise is rather quiet. i would have to reset board a few times to get working properly.

i can post eagle schematics if need to.

5

forgot to add:
audio is for led interacting modes

6

aes92000:
forgot to add:
audio is for led interacting modes

???????? Is this music to light conversions?

The cable would appear to be picking up stray electrical noise inductively. You need to use screened wire for the audio.

Weedpharma

7

audio input = PWM signal for LED's 'dance to music'

i will invest in some shielded cable then

thanx guys.

8

another confusion issue:
what type of shielded cable? how many conductors?

i happen to have a cable that has a red and black wrapped in foil and drain wire outside of that.
will that work and if so, what would the connections be??? will following work???

red = 5v
black = audio signal
drain = gnd

i'm used to using the drain as a secondary or isolated gnd, if needed. will the 5v and audio next to each other cause interference?

9

You can use the cable you have. I would keep that cable for microphone audio only. Connect the microphone to the two wires and earth the shield at one end only to avoid earth loops.

Weedpharma