Water Level Indicator using LCD

Water level indicator plays a vital role in the world of water saving technology. It indicates five different level of water in a tank mostly used in housing water tank,cooler tank etc. The circuit is based on the microcontroller AT89S52 which is brain of the whole system. A CMOS IC4049 is used as a water sensor which provides input signals for the MCU. The output of microcontroller is connected to an LCD and a buzzor. LCD shows the water level in five steps. When the tank gets full of water,an alarm produces.


                                                                                                                                                                                                                     (Photo By Qamar Shaikh)

The gerber files of pcb is as shown below.

WLI PCB                 WLI PCB 2

Project Board

WLI Project Board

Download the complete code with pcb files.