Help with Wiring a Dip or multi switch

[geoscash1]

Hey guys,

Since I am no expert with electronic wiring, I have tried this a couple ways
but so far no luck in making it work correctly, I am not sure what I'm doing wrong.

I want to use a dip switch or multi spst (spdt?) switches to change resistance for
some tests. I have never wired something like this and am not sure if I need to use
an "On/Off/On" or "On/Off" type of switches with 2 or 3 poles.

I made a diagram/image (attached) with the layout and need some help with how to wire
this up. Its just a way to change resistance to find the best spot for some timings
with one of my projects (camera). I figured I might be able to use it as well for testing
with some detector tests also.

The diagram is simple, 4 switches at top, each with 3 poles, under are the resistors,
R1 - R2 - R3, below those are the pcb trace or resistor placement on the board.

Any help would be appreciated very much with a huge thanks in advance..

[Carl-NC]

Without circuit details it's not possible to advise.

[geoscash1]

I want to be able to switch timing for
a camera shutter/record time, I don't need to know values
just how to wire the switches to turn one resistance on, with the other 2 off
or be able to choose a particular switch (timing).

I'm not good at explaining how it works so say, switch one controls R1
which we will be a timing of 1 minute, R2 will be for 3 minutes and R3
will be for 5 minutes.

What it will do in real life is control how long the camera will record
short videos for. So with switch one on and switch 2 and 3 off, the camera
will record video for 1 minute when triggered, if switch one is set to off and switch 2 is set on
and switch 3 is set off the camera will record for 3 minutes, if switch 1 and 2 are off and 3
is on the camera will record for 5 minutes (the timings are just approximate because
different resistors will be off a bit) etc etc.

I'm just not sure if I need 3 switches or 4, if they need to be 2 pole or 3 pole, spst or spdt
and how the wires would connect everything together..

Hope that helps explain it a little better or at least give you a little bit of an idea of
what it will do.. I know it will work (commercial boards have dips to choose different settings for record times),
I just don't know how to get it done right or how to wire it....

[golfnut]

As mentioned there are a few gaps in your description,,

I try to geuss the gaps.

If you require 3 states in use, then you may need only 2 switches, these can be SPST,

So
S1,2 closed - Gives R1 is (R2//R3)
S1 closed - Gives R2
S2 closed - Gives R3

[Altra]

Here's a substitution circuit for resistors or capacitors. I have made them for the bench. Using dip switches, proto board and "mini grabbers" to connect to the circuit.

In your case you can find a 4pole single throw dip switch and wire it like the diagram ignoring 4 of the switches and resistors.

[geoscash1]

That's perfect, thanks guys, exactly what I was looking for... thank you both for the diagrams and explanations, much appreciated..