How to make Low Level and Full Level Alarm with Level Indicator

 

How to make Low Level and Full Level Alarm with Level Indicator 

To make a low level and full level alarm with a level indicator utilizing the BC547 transistor, you'll require extra parts like resistors, LEDs, and a buzzer. All details step by step are given below

 

Components you’ll need:

1. NPN transistors (like BC547 x7 for low level and full level indicated or similar)

2. Resistors 470 Ohm/.25w x 5 & 1k

3. LED 5mm x 5 (for low level and full level sign)

4. Buzzer 5v DC for alarm

5. DC 5v 

**Video Making Capture**

Connect the 5v DC or 5v Mobile charger power source to the input of your Circuit.

Testing and Adjustment:

Power the circuit and test each level transistor separately by changing the water level. At the point when the fluid arrives at a low level, the comparing led should to light up, and the buzzer ought to sound. Likewise, when the fluid arrives at the full level, the other led ought to illuminate, and the ringer ought to sound once more.

**Circuit Diagram**

Finalizing the Installation:

When the circuit is filling in true to figure, introduce it in the ideal place where it can really screen the fluid level. Guarantee that all associations are secure and protected to forestall any shortcircuits or mishaps. By following these means, you ought to have the option to make a low-level and full-level carefulness with a level marker utilizing BC547 semiconductors.