Hi guys, last night my EE friend called me and said come here I have nearly finished the project.
I immediately went to his workshop just saw a mounted PCB without any antenna or box, but working very good; inspite of various exist fields, when we passed a coin over the board it would give a distinct beep. in my opinion
it can do something.
He told me " honesty at first I didn't think it's able to detect such clear and well."
Then he added " we should make some little changes in PCB and make the latest board, but by the time this can work"
It's supposed to take it at weekend after putting in box.
as you see changes is made in white ellipses (moved S3 place, link pin1 U5 to -9V, link jumper pin7 to -9v and thickened +9v & GND tracks.
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