DIGITAL LIQUID LEVEL METER USING ATMEGA328 MICROCONTROLLER

Monitoring Systems are necessary to understand the changes that take place in environments. The data collection systems are useful and effective tools to collect information from bulk storage tanks and to monitor the same. The measurement of liquid inside the tank is most important and such systems are useful in industries which are categorized as safety critical systems.Wireless liquid monitoring system using ultrasonic sensors is developed. The system is tested and found to be running as expected. The features of the microcontroller were utilized to build an efficient system which is both low-power and easy to maintain. The installation of the system is easy and makes it more compatible for different environments.The CC2500 module used which uses the serial communication link to and from the microcontroller. This link and uses Commands to communicate with the module and configures the same to GUI mode and sends and receives packet of data wirelessly.Microcontroller Atmega328 is a heart of the system. It is used to control overall operation of the system. The ultrasonic sensor is placed with its face directed to the liquid surface. The module is connected to the microcontroller which is used to determine the depth of the liquid in the tank. The PC module directly connects to the unit which collects these values and represents them on the graphically. The data is tabulated and the variation of liquid is shown on a graph. For plotting graph there is a GUI (Graphical User Interface)