Hello All,
it is my first time here.
I've got a hall sensor which needs about 5mA, ring with some magnets and I need to have a possibility to count it, it is about 100Hz. I just need to count them and increment in my C programme in uC. According to Shannon's law I should generate minimum 200Hz wave. But I want to reduce current supply, according to this article »
www.digikey.com/en-US/ar ··· switches Figure 7 I can switch on/off the voltage supply just to sleep the sensor. In my case 30us should be enough (start-up time and time to read a value), so I should generate 200Hz wave with 30us duty cycle, yes? If I generate 100% duty cycle everything for me is clear, but in my case according to this article would it work? I am afraid to lose samples. Can somebody explain it to me how it works with this sleep time? Any held needed.
Thanks a lot.