Landmines hid under the earth origins risk to the lives and influence the economy of the nation. Discovery and eliminating of these by hand is a dangerous task, which may occasionally cause accidents. In such situations, robots help in the discovery of the landmines and also any other metals present in the ground. This article gives an overview of the “Metal Detector Robot” that uses RF technology. The proposed system comprises a transmitter (Tx) and receiver (Rx) circuit. The Tx circuit transmits the commands necessary to work the robot. The Rx circuit receives the commands through RF and moves the robot according to the received commands. A “metal detector” is interfaced to the microcontroller in the receiver end. Thus, when any metal is noticed the robot ends there and generates a buzzer sound.
There are various basic electrical and electronic components which are commonly found in different circuits of peripherals. In many circuits, these components are used to build the circuit, which are classified into two categories such as active components and passive components. . Active components are nothing but the components that supply and control energy. Passive components can be defined as the components that respond to the flow of electrical energy and can dissipates or store energy. These components can be found in numerous peripherals like hard disks, mother boards, etc. Many circuits are designed with various components like resistors, capacitors, inductors, transistors, transformers, switches, fuses, etc. Therefore, this article gives a brief information about different types of electronic and electrical components that are used in various electronic and electrical projects.The following paragraphs describe each & every component in detail with diagrams. [Read more…]