This project focuses on the development of a custom metal detector using a digital approach. There are many different kinds of metal detectors, but for this project we will be designing one that can switch between low and high frequencies. This will increase the ability of the device to distinguish between different types of metals, have an adjustable sensitivity, and improve accuracy when detecting metals buried underground. An additional feature for this device is to be mounted on a frame with an attached motor and wheels, allowing it to be controlled remotely with an Android application.