Hi everyone, I am new to this forum - so a quick introduction. My name is Rana; I am actually an old-school, i.e. the last time I worked with electric circuit was 26 years ago, and that time we all were running around with 4017 and 555 making a NightRider lights (good old days); with this huge gap, I am struggling figuring out how to do the following, and I am hoping someone can help me with it.
So with a Ratiometric Hall Effect Sensor (like SS495A), my understanding is with no magnetic field applied the output is about one-half the supply voltage, which will increase with the south magnetic pole on the face or decrease with the north magnetic pole on the face.
Suppose with a supply voltage of +5V, what I want is:
- One Pulse when it's more than 3V
- Two Pulses when it's less than 2V
so I guess I have two pots that I set to fine-tune; but any idea how I can do it easily?
A bonus would be where the pulse(s) would repeat after some time if magnet is still presence.
Thanks a lot guys; I would surely appreciate any help and feedbacks.
Rana