RF Link based projects

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An RF module (radio frequency module) is a (usually) small electronic device used to transmit and/or receive radio signals between two devices. In an embedded system it is often desirable to communicate with another device wirelessly. This wireless communication may be accomplished through optical communication or through radio frequency (RF) communication. For many applications the medium of choice is RF since it does not require line of sight. RF communications incorporate a transmitter and a receiver. They are of various types and ranges. Some can transmit up to 500 feet. RF modules are widely used in electronic design owing to the difficulty of designing radio circuitry. Good electronic radio design is notoriously complex because of the sensitivity of radio circuits and the accuracy of components and layouts required to achieve operation on a specific frequency. In addition, reliable RF communication circuit requires careful monitoring of the manufacturing process to ensure that the RF performance is not adversely affected. Finally, radio circuits are usually subject to limits on radiated emissions, and require Conformance testing and certification by a standardization organization such as ETSI or the U.S. Federal Communications Commission (FCC). For these reasons, design engineers will often design a circuit for an application which requires radio communication and then “drop in” a pre-made radio module rather than attempt a discrete design, saving time and money on development.

S.No.Model No.RF link based projects
1.R82Unique office communication system using RF
2.R86Automatic wireless health monitoring system in hospitals for parents
3.R72Robot with obstacle avoider
4.R68Home appliance control
5.R75Metal detector robot
6.R69Direction control of DC motor
7.R73Prepaid energy meter
8.R67Agriculture system/Generator start stop
9.R66Logical password
10.R74Security system