Sending SMS from No Signal Area - Electronics Mini Project

Hi friends, in previous article we have seen Zigbee and GPS project which tracks a vehicle. Today we will build another innovative electronic project which will send a SMS from No Signal Area. There are many locations where we get poor range or completely no range. So using this embedded system we can send a SMS from such locations. The only condition we need here is, we should have a mobile network at the receiving end of Zigbee module.

This is low cost project and highly innovative. You can build such projects for your final year engineering submissions also.

Sending SMS from No Signal Area

Objective

The main objective of this micocontroller project is to send a SMS from No Signal area which is also known as Black Spot area using Zigbee and GSM module.

Components:

Hardware

1. 8051 family development board


2. power Supply


3. Zigbee modules


4. GSM modem.


5. Max232

Software

1. Embedded ‘C’


2. RIDE to write code


3. ISP to burn the chip

Block Diagrams

Zigbee Transmitter Block Diagram



Zigbee Receiver Block Diagram



Power Supply:

Description

As already stated, this project is useful for creating signal, using GSM module we can send SMS through that signal to destination. In this project we are using two different frequencies. Zigbee has frequency 2.4GHz and GSM has frequency 1800 MHz.

Main circuitry of this project contains two embedded development boards. One contain Zigbee and Keypad and other contain Zigbee and GSM. We need to place first board in No signal (Black spot) area. Other development board which contains Zigbee receiver and GSM module is kept in area where there is mobile network.

When you type a message using keyboard and hit enter from No signal area, Zigbee transmitter will send a signal with message to the receiver end. Receiver end of Zigbee also has GSM module which will send that SMS to destination mobile.

Watch this Video

[embed]https://www.youtube.com/watch?v=YmrdfscX8bk[/embed]

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