A simple modification with Stuart II

[Naruto13]

do Clone PI. its good for mines.

Same issue ,
How can I use Led indication for detector (threshold not frequency )

[Naruto13]

No , it's not real mines
It's a metalic cube 10cm*10cm*10cm buried in depth of 30 cm ( sand )

[kt315]

do Clone PI. its good for mines.

[6666]

Real mines ?

[Naruto13]

Hello everyone ,

I'm interested in making the stuart II metal detector to use it in a national competition to remove mines from the ground

I want the circuit to have an Led to indicate if there is a metal detected or not . not the change in sound frequency
I want too add a threshold if the signal is higher the led will be on

Any help ??