JAMD (Just another metal detector)-need your opinion

[nuggetsdigger]

I am working to a metal detector (IB type).
For now I am designing the digital part (GLCD, uC, ADC part, rotary encoder and the buzzer)
Do you have a reliable schematic for the analog stage ?
Thank you.

[nuggetsdigger]

[bernte_one]

verator m?

[Qiaozhi]

I am working to a metal detector (IB type).
For now I am designing the digital part (GLCD, uC, ADC part, rotary encoder and the buzzer)
Do you have a reliable schematic for the analog stage ?
Thank you.

Have you looked here? ->
Inside the METAL DETECTOR - Published September 2012

[kt315]

kit VDI selling http://www.md4u.ru/viewtopic.php?f=3...8b8155f3cbb225
so you can ask RR... I read he used Verator for testing.