Metal detector for SMARS

With this module your SMARS will be a little treasure hunter! To build it, you will need the following parts: -1x metal detector kit https://www.amazon.com/gp/product/B07KC85CL7/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B07KC85CL7&linkCode=as2&tag=idn00-20&linkId=a0a704f4620542642a881d1fc62ccc5d https://s.click.aliexpress.com/e/_9va0K6 -1x male header pin https://www.amazon.com/gp/product/B07KC85CL7/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B07KC85CL7&linkCode=as2&tag=idn00-20&linkId=a0a704f4620542642a881d1fc62ccc5d https://s.click.aliexpress.com/e/_AWZmwE -3x cables (male to male or male to female) https://www.amazon.com/gp/product/B07KC85CL7/ref=as_li_tl?ie=UTF8&camp=1789&creative=9325&creativeASIN=B07KC85CL7&linkCode=as2&tag=idn00-20&linkId=a0a704f4620542642a881d1fc62ccc5d https://s.click.aliexpress.com/e/_A5k75G During the assembly, you will have to solder the header pin to the positive pole of the buzzer place (red cyrcle in the picture). The sensor will work as a digital input, so you can connect it to any pin. From my experience, the module works better with 3.3V instead of 5V.