I am trying to put together a 3V Polarity Reverser to use with a small RC Motor.
It needs to have a sub micro sized switch/button that will reverse the polarity when needed to reverse the motor direction.
Thanks in advance for the help!
Help with what? You haven't shown us your sketch, a schematic, pictures of your actual wiring, given us links to the hardware you're using, or even described the problem you are having.
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If you just want to do it with a switch, and there's no arduino involved then you need a dpdt switch. In which case google for "miniaiture dpdt switch"
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. . . or if you do want an Arduino solution for polarity reversal, then Google for "H Bridge".
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Or a DPDT relay. But if weight & bulk are issues with "RC" then an H-bridge motor driver is probably a better solution.
It is irrelevant as to the size of the switch, you use it just the same as big switches.
Now what is 3V in this? Is it the rating of the motor? Is it the output of the processor you are intending to use?
To change the direction of a motor you need a H-bridge but please do not use a L298, or anything that uses transistors, as they are very old and will give you endless trouble.
You need something like a DRV8833, or LMD18200.
Maybe look at this:-
My issue is that I need a tiny DPDT switch and I can’t find one small enough so I am hoping some kind of Arduino Board configuration might be able to do it.
Do you mean get rather than give?
Again do what?
I don't understand how an Arduino Board configuration can do something.
I am assuming that English is not your native language. Try writing much longer sentences before translating them.
In the mean time You might want to look at this How to get the best out of this forum before you proceed any further.
Drip drip feeding of information is so frustrating, especially when someone has taken the effort to supply you with so much information, which you reject for undisclosed reasons.
I remind you that David said:-
Yes. “Get/Find” one…
That's confusing. The smallest Arduino board + motor driver is going to be bigger than all low power DPDT switches, e.g. this one:
From e.g. here
Perhaps tell us the size of the available space to fit the components for the solution into.
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The switch needs to be no bigger than 10mm square and smaller would be even better. It also needs to have an ON/Off/ON Configuration with "Momentary" type being optimal. It can be a rotary switch, toggle, or slide but needs to have 3 positions. Hope this makes sense and thanks again for all the help.
What current rating should this switch have?
Not a lot! Can you operate the switch with a small pin or needle pressing the switch slide?
Oh, and does the switch need to stay in the position you select?
The switch does not need to stay in the position it is in. In fact, a “momentary” switch would be better.
It just needs to have a On/Off/On to have reverse polarity being sent from the opposite on positions.
I am using the switch to control the motor that opens and closes a sliding panel.
The opposite polarity turns the motor in opposite directions to open or close the panel.
Have you designed the mechanical parts to connect to the switch mechanism? Please show how that works, since that takes up a lot of the space you have allocated for the switch!
And, you need a DPDT, double pole double throw switch which automatically doubles the size because that is two switches, side by side, in one package.
I will be running wires from the switch to the Battery Supply and then the Motor.
If you are familiar with the 1966 Batman Series and Batpoles Switch located in the Shakespeare Bust on the desk, that is what I am trying to replicate but I need to find DPDT type switch (slide, toggle, or pushbutton preferably in a Momentary type switch that will fit in a 1:12 Scale Shakespeare Bust.
Have you got somewhere to hide some other electronics? If you could put a momentary, normall open, push to close, single pole switch in the bust, then you could have some electronics that turned those pushes of the momentary
switch into other terminals that simulate a DPDT switch
Yes.... I can hide the electronics. I just need to be able to have the switch in the Bust and run the wires to whatever will reverse the polarity as well as to the power supply and the motor.
That is a given! BUT how do you intend to mount this switch so it can be wired and can also be accessed by a person to do the switch moving? How much force can the mounting handle? There is much more to engineering than just saying you need a switch to reverse polarity and have an off position.
Woud a switch like this fit?
Full details of that, and the other switches in the range can be found here
If you can identify a switch that would fit, and tell us how much space you have for electronics, then someone should be able to help you convert that switch press into a motor on / off / reverse circuit.