Now a day’s Many real time applications connected to web (internet) .This is very useful and helpful for customers to see application (requirements) from anywhere in the world. These web connected applications belong to server client model. TCP, UDP and HTTP protocols are used in this concept. Data transfer to web server is done through GPRS (General packet radio services) communication. We can transfer large amounts of data through this GPRS. Many Embedded Networking applications fall under this model only.
Weather monitoring in remote places through web server is very useful. Weather will be having different parameters and changing of one parameter may show effect on other parameter and finally weather conditions may be volatile .In this project microcontroller is interfaced with some sensors like temperature, smoke, moisture, humidity…….etc., GSM/GPRS modem is directly connected to microcontroller through serial (UART).whenever weather parameters are changed sensors will detect and send the same information to microcontroller. Microcontroller develops a TCP stack with sensors data and passes that data to web server through IP address and port number to particular web server. Server populates the data and maintains it in database. We can see the data on 16X2 LCD. This LCD is connected to microcontroller in parallel using which we can see the data on it. Along with this one more service is also available. That is user/customer can get message to him/her mobile about sensors for weather report.
Here we use 8051 as a microcontroller with 5v DC Power supply. Its having some Basic inputs and outputs. Serial (UART) protocol is primary concern here. The main heart of this project is GSM/GPRS modem and it work on GPRS AT commands. 16X2 LCD is connected to microcontroller through Digital I/O lines.