problem with hall effect sensor

Development Boards MicroMod
1

Hello

i bought hall sensor on sparkfun webshop :

http://www.sparkfun.com/commerce/produc … ts_id=9312

I can’t use it as i use another one us 5881…

HOw can i use the sparkfun one easily to make an interrupt on atmega8?

Thanks…

2

megazed:
Hello

i bought hall sensor on sparkfun webshop :

http://www.sparkfun.com/commerce/produc … ts_id=9312

I can’t use it as i use another one us 5881…

HOw can i use the sparkfun one easily to make an interrupt on atmega8?

Thanks…

Connect the ATS177 to the Atmega8's external interrupt pin?
3

Yes

It’s what i’m trying to do.

I expect from him a low level when magnet come near.

In my case, when i approach magnet, there is a lot of interrupt (over than 100 per second)

With other : one passage = 1 interrupt;

What’s the problem??

4

megazed:
Yes

It’s what i’m trying to do.

I expect from him a low level when magnet come near.

In my case, when i approach magnet, there is a lot of interrupt (over than 100 per second)

With other : one passage = 1 interrupt;

What’s the problem??

Assuming you have a pull-up resistor in place…

Like mechanical switches, you may need to de-bounce as on the fringe of the field, it will have uncertainty. There are probably application notes for the chip.

5

Yes it’s maybe bouncing