Metal detector module for SMARS

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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://amzn.to/3cDhQG3 https://s.click.aliexpress.com/e/_9va0K6 -1x male header pin https://amzn.to/2NYI9fv https://s.click.aliexpress.com/e/_AWZmwE -3x cables (male to male or male to female) https://amzn.to/2O2jHKm 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.