help required !!!!!!!1
i have to make a metal detector robot which has to detect an iron or any metal from 10 cm distance and indicate by an LED. i have found a circuit from net but this works for only a small distance as <1cm. can anybody help me out with the idea or circuit or source.............................
i have to make a metal detector robot which has to detect an iron or any metal from 10 cm distance and indicate by an LED. i have found a circuit from net but this works for only a small distance as <1cm. can anybody help me out with the idea or circuit or source.............................