When the water level rises or falls in the LEDs the glow increases or decreases respectively.
- In some cases, it is very difficult and dangerous to directly observe the water level in water tanks, tanks and underground tanks, so the water level measurement circuit is very useful. The circuit will automatically sense the current water level and display the water level by illuminating the corresponding LED.
- Very safe circuit using DC 12v power source, you can use 3.7v-20v source, pay attention to use current limiting resistor suitable for LED lights. The circuit showing the water level is also very simple and accurate, the circuit uses the NPN S8050 transistor, resistor, Led bulb, you can use a buzzer or flash to warn the water level.
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