The Metal Detector Project by NECO is an Arduino-based wireless metal detector that can be built easily using the instructions provided. The project is based on a Pulse Induction (PI) technology and is named "Spirit PI". The metal detector consists of a coil of 25 turns and a pulse generator made with a mosfet and an Arduino microcontroller. The information about the detected metal is sent to the "Spirit PI" app via a Bluetooth module HC-05. The app performs the necessary calculations and alerts the user with sound and vibration if there is metal under the coil.

The project is suitable for anyone who wants to build their own metal detector. The project's website provides a list of all the components required to build the metal detector, and video tutorials on YouTube guide the user step by step. The developer, NECO, promises to improve and add more options and power to the project in the future. If you have any questions or encounter any errors, the developer is ready to assist you and fix the problem as soon as possible. Build your own PI metal detector with the Metal Detector Project by NECO.