Arduino Forum

Using Arduino => General Electronics => Topic started by: doublec4 on Feb 01, 2011, 12:55 am

Title: Looking for a hall effect sensor that signals off when no magnet present?
Post by: doublec4 on Feb 01, 2011, 12:55 am
Hello everyone,

I've come across a few topics with arduinos and hall effect sensors but I can't seem to find anything regarding this topic. From what I understand, most hall effect sensors send a signal when a certain magnetic field is present. Then to switch them off, you need the opposite pole to do so?

Is there a hall effect sensor that works with the arduino that toggles off when no magnetic field is present?

Thanks guys!
Title: Re: Looking for a hall effect sensor that signals off when no magnet present?
Post by: Grumpy_Mike on Feb 01, 2011, 12:59 am
Quote
Then to switch them off, you need the opposite pole to do so?

These are called latching sensors.
You want the non latching ones, there are plenty around.
Title: Re: Looking for a hall effect sensor that signals off when no magnet present?
Post by: doublec4 on Feb 01, 2011, 01:37 am
Thank you!

Knowing the proper terminology greatly helps when searching for these components.