Interface ckt design b/w voltage source and microcontroller

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jspjoseaac

Joined Dec 10, 2019
1
Hello ,
I have a voltage profile as attached here , created by a voltage source connected to a 10A load.
I want to develop a circuit that be interfaced b/w the above voltage source and a micro controller.
The circuit must create an interrupt to the controller whenever the voltage goes from 0 to ~12v or 12 to 0v.
This ckt must avoid intermediate transitions (example ~12v to 4v in 5 ms ramp downing or ramping up ) for interrupt generation.

Please give me ideas.
regards,
jsp
 

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danadak

Joined Mar 10, 2018
3,781
Pretty straightforward, an ATTINY85 and some code could do this quite easily.

What does b/w mean ?

Is the ramp rate significant as part of the decision process ?


Regards, Dana.
 
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