Look at the block diagram of this project drawn below: Block Diagram of Water Level Indicator. Automatic Water level Indicator can be used in Hotels, Factories, Homes Apartments, Commercial Complexes, ...

Block diagrams of the transmitter and receiver are shown in Figs 1 and 2, respectively. Fig. 1: Block diagram of the transmitter Fig. 2: Block diagram of the receiver Circuit and working. The circuit ...