Hello thanks for reading and replying..much appreciated
The Neutral is not common with ground for the moment (but yes that is the plan later)
Currently I am running all the electronics from a 12V battery.
5V for the relay coil is got through 7805 and i further drop this voltage to 3.6V for the microcontrolelr.
No matter how i filter the contacts or the electronics,this problem is sustained.
I have put 0.1µf ceramic disc across the freewheel diode(1N4148),filtered(1microfarad) the Vcc of micro.And the snubbers as described earlier.
I CANNOT distance the micro from the Relay.(small form factor ckt)
Please help me out!!!
EDIT: Thanks eric for replying.
Yes some pins are floating on the MCU.Will that cause a problem?
I think some proper values for a snubber may solve the issue.Correct me if i am wrong
Thanks again