hai all
thank you for the reply
when we are discussing something about universal
it should work with almost all conditions
in our case if you are designing a timer for a lab
it's very easy.because the power will be always stabilized,will be equipped with air conditioners.almost no chance of EMI or any other irregularities.
if we are going tom use the same system inside the factory,it will start failing.
any motor can start/stop at anythime. temperature,humidity or even the power supply may be not stabilized.and if we are designing some thing universal,the system should work inside the lab and the factory,without any trouble.what's the possible way to filter all these unwanted things?
ml