Description
The project is designed to display water level in a tank. This project is designed for overhead tank digital water level indicator. It is built around priority encoder, LCD display, Microcontroller and a few discrete components. Due to high input impedance, priority encoder senses water in the container from its input terminals. The inputs are connected to +5V. The ground terminal of the sensor must be kept at the bottom of the container (tank).
The power supply consists of a step down transformer 230/12V, which steps down the voltage to 12V AC. This is converted to DC using a Bridge rectifier. The ripples are removed using a capacitive filter and it is then regulated to +5V using a voltage regulator 7805 which is required for the operation of different ICs and components.