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sorry sir but i cant understand what u say
---------- Post added at 17:25 ---------- Previous post was at 17:20 ----------
this problem occured when a.c. device connect with relay.
this is my diagram, my friend.
---------- Post added at 04:27 ---------- Previous post was at 04:25 ----------
this is my diagram, my friend.
In this figure microcontroller pin goes from 5v to 0v
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