Wireless Frequency Meter

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A wireless frequency meter is a device used to measure the frequency of an output signal of any electrical device situated in a remote location. Our designed wireless frequency meter typically displays numerical values of the frequency in an LCD module in the unit of Hz or KHz. It consists of two major parts: 1) Line frequency counter and 2) Remote Display Module. Line frequency counter consists of three major section which are i) signal input, ii) Micro controller, iii) RF transmitter whereas the remote display module also consists of three parts i) RF Receiver, ii) Microcontroller and iii) LCD Display Module. The Receiver Module can be set up at a maximum distance of 150 meters from the transmitter. It is possible to have more than one receiver for a transmitter. This meter can measure frequencies up to 125 KHz and is very much useful for various industrial applications at a cost of Tk. 1850 only. The main attraction of our designed circuit is the simplicity of the circuit, easiness of implementation and the availability of components required in Bangladesh.