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Multiuse Text Messaging by RF

Abstract :

Multiuse Text Messaging by RF is the exchange of brief written text messages between two or more portable devices. Secured wireless communication plays an important role for military, office, industry. Multiuse Text Messaging by RF project is specially made for wireless communication. It doesn’t need any networking service. As many times we need to communicate within a campus or a small area. So, this project can use for this purpose without paying messaging bill. The major point of this project is that it is secured wireless communication. Transmitter encodes the message before sending it which couldn’t decode easily by any receiver. Our receiver circuit knows the decoding format so it easily decodes and user can read the message. In this way user can get securely communicates with each other.

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Zigbee based secured text messaging


This project is used to communicate or transmit a text message from one place to another place through wireless. The text message is encrypted by using the Microcontroller and the encrypted message was transmitted through wireless Zigbee. At the receiver end the signal was received by the standard receiver and the analog signal was fed to the Microcontroller and it was decrypted by the Microcontroller and the message was displayed over the LCD display.

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GSM Based Automatic Meter Reading and Billing System

GSM Meter Reading
GSM Meter Reading and Billing System

Abstract :

GSM based Automatic meter reading is the technology of automatically collecting data from energy meter and transferring that data to a central database for billing and/or analyzing. The Transmitter circuit is connected to the meter which counts the pulses from it and displays it over the LCD display. The transmitter circuit containing a GSM modem for data transforming, which transforms the meter reading after each 10 pulses to a particular number through SMS. Continue reading GSM Based Automatic Meter Reading and Billing System

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GSM Home security system

Home security system using GSM


Home/ Bank/ Office security has been a major issue where crime is increasing and everybody wants to take proper measures to prevent intrusion. In addition there was a need to automate home so that user can take advantage of the technological advancement in such a way that a person getting off the office does not get melted with the hot climate.

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