hall-effect sensor for variable hi hat control

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Re: hall-effect sensor for variable hi hat control

Postby dmitri » Sat Jan 09, 2010 10:28 pm

rockdude wrote:Ok I've tried all sorts of combinations to get my hall effect sensor to respond in any way and it's seem like both of them is totally dead strangely enough. I just tried connecting a linear 100k potentiometer and I got a signal without much tweaking...does that mean that I can rule out a faulty pedal input?

Yes, you can rule it out.
To be honest I didn't look into the hall sensor pedal design closely but at the first glance I would suspect the sensor might not get enough power from MegaDrum or the sensor's polarity is wrong.
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Re: hall-effect sensor for variable hi hat control

Postby blindboyrecording » Mon Jan 11, 2010 12:31 am

as my megadrum isn't working right now i still managed to get good results by measurements (multimeter) and the hall effect sensor (from bitsbox.co.uk) and the ring-magnets (supermagnete.de)

everything seemed fine.

in my order from bitsbox.co.uk i also ordered a reed magnet.
and that also checks out fine on the multimeter for readings.
but i'm pretty sure they (reed magnet switches) are only ON/OFF type.

anyone knows for sure?
i bought these
Image
Magnetic Reed Proximity Switch
Normally open, single pole, 0.5A


which is a bummer since they would be easier to hook up.
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Re: hall-effect sensor for variable hi hat control

Postby dmitri » Mon Jan 11, 2010 12:40 am

It is not a hall effect sensor.
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Re: hall-effect sensor for variable hi hat control

Postby blindboyrecording » Mon Jan 11, 2010 12:45 am

dmitri wrote:It is not a hall effect sensor.


hehe
i know the one picture isn't a hall effect sensor.

it's a magnetic reed switch (like i wrote ;) )
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Re: hall-effect sensor for variable hi hat control

Postby Sabre » Mon Jan 11, 2010 7:35 pm

It's not a magnet either.

It's a magnetic reed proximity switch. It switches on or off in proximity to a magnetic field.
It will serve no purpose for what you are trying to accomplish.
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Re: hall-effect sensor for variable hi hat control

Postby sandsound » Sat Jan 16, 2010 2:51 am

Hi all

This hall-effect sensor thing for the hi-hat seams like a great idea, can't wait to try it myself :D

I have some troubles finding a sensor locally, but I found this one :
https://www1.elfa.se/elfa~dk_da/b2b/catalogstart.do?tab=catalog
It looks a lot like the 1302 version, but do you think it will do the job?

They have a 5mV/G (A1321LUA-T) and a 2.5mV/G (A1323LUA-T), and I don't know enough about this stuff to decide what to by, maybe I should just by 'em both ;)
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Re: hall-effect sensor for variable hi hat control

Postby rockdude » Sat Jan 16, 2010 8:45 pm

So you're shopping from Elfa. Another Swede?
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Re: hall-effect sensor for variable hi hat control

Postby sandsound » Sat Jan 16, 2010 9:14 pm

rockdude wrote:So you're shopping from Elfa. Another Swede?


Almost... I'm from Denmark actually :-) but I can't find a dealer in Denmark.
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Re: hall-effect sensor for variable hi hat control

Postby Ken Forgettable » Fri Jan 22, 2010 1:21 am

First of all; Allegro say the 35xx series has been discontinued.
I think the old 3503 could be replaced with the 1302, but the 1321 looks as if it is *much* more
sensitive (just like me really).

Hamlin do a really costly jobbie that needs playing with http://uk.farnell.com/hamlin-electronics/55100-3m-02-a/sensor-hall-effect-mini-flange/dp/5052580

Anyway, try a 1 - 10K pull up resistor between supply and output - some of these things have a sink output.
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Re: hall-effect sensor for variable hi hat control

Postby Roman » Sat Feb 06, 2010 3:24 pm

Hi. I had experience with the sensor ss495. It well works with a small magnet(diameter 10mm). On a photo below you can see a pedal design. The sensor is in a black box, the magnet is attached to the top lath. Press a pedal - the magnet comes nearer also a signal on an exit smoothly varies. I think that this design is much easier, than optical or potentiometer controller.
You do not have the required permissions to view the files attached to this post.
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