Low cost lrl (dowsing)

[taxma1981]

Hi!I made a low cost lrl with a arduino and a simple code,you have 3 digital output and you can use a transforel 6 volt to 230.

https://youtu.be/iwXNdf8levE

[havoc88]

Hello Taxma. Can you inform us about the circuit's working princible ?
I cannot understand the underground loop part. Greetings from Greece.