Author Topic: Thumbwheel pot with number  (Read 4735 times)

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Offline airman00Topic starter

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Thumbwheel pot with number
« on: November 27, 2008, 09:55:46 AM »
Can anyone help me out finding a thumbwheel potentiometer with numbers on the top of it


I wanna do something thats gonna look like this:


I want to have three digit number selection - which means three thumbwheel potentiometers with numbers on them.Microcontroller does an A2D on the pot and translates that analog reading into what position the thumbwheel pot is turned to ( aka which number )
« Last Edit: November 27, 2008, 09:56:59 AM by airman00 »
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Offline Soeren

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Re: Thumbwheel pot with number
« Reply #1 on: November 27, 2008, 03:59:56 PM »
Hi,

Why not just use Binary Thumbwheel Switches?
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline airman00Topic starter

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Re: Thumbwheel pot with number
« Reply #2 on: November 27, 2008, 05:12:13 PM »
Hi,
Why not just use Binary Thumbwheel Switches?
because I want 999 combinations and dont want that many binary switches :P
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Offline Soeren

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Re: Thumbwheel pot with number
« Reply #3 on: November 27, 2008, 07:47:24 PM »
Hi,
Why not just use Binary Thumbwheel Switches?
because I want 999 combinations and dont want that many binary switches :P
Plain old switches is not what I had in mind - didn't you ever heard of thumbwheel switches?
3 of them is all it takes (and in your case, go for BCD coded output rather than raw binary)

Well, a picture paints a thousand words, or in this case combinations, so here goes...
Regards,
Søren

A rather fast and fairly heavy robot with quite large wheels needs what? A lot of power?
Please remember...
Engineering is based on numbers - not adjectives

Offline airman00Topic starter

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Re: Thumbwheel pot with number
« Reply #4 on: November 27, 2008, 08:14:03 PM »
Oh I see now what you were referring to.
A thumbwheel pot would be easier to use and interface , but I guess if I cant find a thumbwheel pot I'll use a thumbwheel switch, Thanks for bringing it up.

Anyone know if thumbwheel pots even exist?
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Offline Trumpkin

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Re: Thumbwheel pot with number
« Reply #5 on: November 27, 2008, 09:35:30 PM »
I did quite a bit of searching for you. I found out at digikey if you search "pot thumbwheel"  P4C1502 through P4D2503 all have numbers on them!
« Last Edit: November 27, 2008, 09:38:40 PM by Trumpkin »
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Offline airman00Topic starter

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Re: Thumbwheel pot with number
« Reply #6 on: November 27, 2008, 10:06:40 PM »
I did quite a bit of searching for you. I found out at digikey if you search "pot thumbwheel"  P4C1502 through P4D2503 all have numbers on them!


Thanks but I wanted ones that can be read from the top and not from the side , pictures of which can be found in Soeren's post. They should look exactly like the ones in Soeren's post except be pots and not switches.
Check out the Roboduino, Arduino-compatible board!


Link: http://curiousinventor.com/kits/roboduino

www.Narobo.com

 


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