Abstract: Weather forecasting is the application of science and technology to predict the state of the atmosphere for a given location. Human beings have attempted to predict the weather informally for millennium and formally since the nineteenth century. Weather forecasts are made by collecting quantitative data about the current state of the atmosphere on a given place and using scientific understanding of atmospheric processes to project how the atmosphere will evolve on that place. Wireless technology has been tremendously growing day by day. The need of wireless technology is that it replaces the conventional methods including long wires for communication and thereby increasing the redundancy of the whole system. The measurements of temperature, atmospheric pressure and relative humidity remotely by using the appropriate sensors are not only important in environmental or weather monitoring but also crucial for many industrial processes. A device for weather monitoring will be described in this project to monitor and display the, Temperature (0C), Humidity in RH% (0C), Light Intensity, Atmospheric Pressure in KPa, Vibration or Acceleration, Wind Speed, Wind Direction, Rainfall in mm, O2 Contents in air, CO2 contents in air using analogue and digital components. The analogue outputs of the sensors are connected to a microcontroller through an ADC for digital signal conversion and data logging.
Keywords: Microcontroller, Sensors, ADC.