I think he also wants it connected with the ign. So if opens and closes as you start and turn off the car.
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The primary function would be ign. on monitor out, ign. off monitor in. It would also be cool to have an override to have complete control over positioning, ie someone riding with me, glare on the screen.
Originally Posted by podcake
ok, heres what I have so far. Im not to sure about the microswitches, where/ how they go. I threw in some switches there on the left, if you want to play with them.
Edit: the momentary rocker would be for override adjustment. I'm not sure what needs to be SPDT, DPDT I was just guessing.
just get a LM7805 Regulator, by far the best and simplest way to generator 5v
Sounds good. How much load can they handle?
Originally Posted by pate60
I did some reading about LM7805 Regulator, seems they can handle 1 amp.
Don't go building a regualtor and using a bunch of relays...unless you want the joy of tinkering. Just use the simple schematic I gave you. It consists of one DPDT switch, two micro-roller limit switches, and an el cheapo cigarette lighter adapter from Radio Shack.
Here as simple an illustration as I could come up with. You've already ID'd all of the parts you'll need. Now just wire them up with 20Ga wire from Radio Shack like the picture shows. Place one roller limit switch to that it opens when your screen is fully opened, and the other when it is full closed (allow for some slight mechanical adjustment for fine tuning the limit points). This should work fine AND give you the ability to manually adjust the screen anywhere between the limits by pushing the rocker switch.
That looks great, but is there no way to have the ignition in there as primary, and rocker as override? I've studied it for a while and have not found a way, but there must be some way. It would most likely require, as you say "a bunch of relays".
Originally Posted by MikeH
Edit: I see your only using two pins on the microswitches, should they be spst?
anyone thougt of using a motor and tray from a cd drive?
seems as if it should have all the parts with 12v
gear driven makes a good mechnical sound when moving
and you can get a drive anywhere for less then 10 bucks
I have about 2" of depth, so there's no way that would work.
Originally Posted by lawrence
what about using it to push / pill a pair of cables ?
you could get heater control cables from a a dealer-
say for recurculation door most times those are
about 2 foot long and can be cut down to size to fit.
you may also try a junk yard , then you could also get
the clips and brackets to mount them