No subject

per analogue input. For simple software each input also needs one cog. I
did a demo a while back which used the propeller to display ultrasonic
echoes on a vga monitor. The same trick could almost certainly be applied
to hall effect devices.
See: http://kiwibots.org/articles/propeller-ultrasonic-vga-demo-2.html

Richard

On Fri, 17 Jul 2009 13:51:13 +1200, jimmy allen <jimmy1248 at gmail.com>
wrote:
> i am going to try and use it to get angles.i am going to attach the
> sensor to the bottom of a pendulum and have a mounted magnet bellow it
> and get the sensor to give out read proportional to distance and the i
> will be able to calculate the angle
> 
> 
> On 7/17/09, Charles Manning <manningc2 at actrix.gen.nz> wrote:
>> Apart from setting up the ADC (which is hardware dependent) there's
>> nothing
>> much to it. Just read the ADC.
>>
>> What are you trying to do with this? Unless you need an analogue
>> measurement
>> it is way easier to interface to a switch type hall effect sensor eg.
>>
http://www.sicom.co.nz/xurl/PageID/2214/function/viewprd/prd_id/172816/pmm_id/0/hall-effect-switch-3-pin-sil.html
>>
>> -- CHarles
>>
>>
>> On Friday 17 July 2009 13:30:51 jimmy allen wrote:
>>> i have ordered a part from brightsparks part code UGN3503U
>>> which i think is an analog one
>>> i am planning to use it with a propeller but i can understand some
basic
>>> AVR C so that would be fine(comments would be even more useful) but
just
>>> long as i can understand it it will be fine
>>>
>>> cheers
>>>
>>> On 7/17/09, Charles Manning <manningc2 at actrix.gen.nz> wrote:
>>> > On Thursday 16 July 2009 19:18:27 jimmy allen wrote:
>>> >> for a project i am thinking about using a HES
>>> >> i have ordered one (a UGN3503U) and i am not too sure how to program
>>> >> one. so i was looking for a piece of sample code if anyone has
worked
>>> >> with the before.
>>> >
>>> > It depends on the sensor you use. South Island component centre has a
>>> > selection.
>>> >
>>> > There are basically three main types:
>>> > * Analogue: Attach to an ADC pin and make an ADC reading.
>>> > * Unipolar Switch: Open collector. It looks like a switch to ground
>>> > that
>>> > turns
>>> > on when the magnet is close (polarity sensitive - only reacts to
North
>>> > or
>>> > South, I forget which). Turns off when the magnet goes away. You just
>>> > hook this up to an input pin with a pull-up (like a touch switch
etc).
>>> > *
>>> > Bipolar switch: Like Unipolar switch, but needs to be actively turned
>>> > off.
>>> >
>>> > Turns on with North and turns off with South (or vice versa, I forget
>>> > which).
>>> >
>>> >
>>> > If you want code, you'll need to say what micro you're using.
>>> >
>>> > -- CHarles
>>> >
>>> >
>>> >
>>> >
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>>
>>
>>
>> _______________________________________________
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> 
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