Gsm Based Datalogging System

Abstract

The ability to record data from events and view the results at a place far away from where the event is occurring is very essential and can be applied in many areas such as weather stations to monitor various climatic conditions, industries to monitor changes in industrial processes and to record changes in laboratory experiments. This project handles the design and implementation of a system that reads analog or digital voltage from the output of a sensor. The sensor output voltage must satisfy the conditions that Ov represents the lowest value of the event to be monitored, 10v represents the highest value of the event to be measured and the voltage output of the sensor is linear for all values ofthe event to be measured. The voltage output is attenuated, using a signal conditioning circuit, to a voltage range compatible with the MSP430G2553 microcontroller. The MSP430G2553 converts the conditioned voltage signal to a decimal number and sends the decimal number through a G.P.R.S. module to a PHP server. The PHP server processes the data and displays the results on a website which can be accessed by a user over the internet