[chbot] Hall Effect Sensor

[jimmy allen]

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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