Water Level Indicator Using BC548 Transistor
Total Components : 4
Circuit Diagram :
- 3 Different Color of LED
- Led - LED used to indicate the level of Water present in tank.
- 1 Buzzer
- Buzzer - If the water is full, buzzer will turn on hence the user can switch off the sump.
- Battery - 9v, Battery for Power supply.
- Transistor - BC548
- This project uses the working principle (switching concept of Transistor).
Water will conduct electricity, place different length wires for different level of indications when water level goes up (touches wires) different level Indicators(LED’s) will be turned on thro’ transistors .