next topic »

[Reply #15 on:]

Post what you have so far, software and schematic and we will have a look. Also say what you observe and what you hope to observe, along with the component part numbers you are using.

[Reply #16 on:]

Thanks for the help everyone! Got the sensor working very well...went with the A1302 hall sensor and can use it to sense my magnet a good half foot away!

[Reply #17 on:]

Good for you! Do you have a project in mind that will require a Hall effect sensor?

[Reply #18 on:]

Personally I'm a fan of old fashioned reed switches, cheap and simple.......

If a reed switch gets permanently magnetised it jams closed - hall effect sensors have no moving parts, are smaller and less breakable.  Reed switches also affect the field they sense whereas hall devices don't.

[Reply #19 on:]

@liudr:

Im using it for my biomedical project to locate a magnet inside the body for orthopedic purposes...works very well so far!