Water level indicator using 7-segment display circuit design

This schematic outlines a straightforward electronic project for designing a water level indicator circuit. It employs a 7-segment display to represent water levels in a tank as low, half, and full, indicated by the letters L, H, and F, respectively. The circuit utilizes a 7408 quad two-input NAND gate IC, which contains four independent gates, along with a 7404 hex inverting gate IC. Five level sensors are incorporated to detect various water levels: one for common ground, one for low, one for half, one for high, and one for overflow.

The water level indicator circuit operates by using the 7408 NAND gate IC to process signals from the five level sensors. Each sensor is strategically positioned at different heights within the tank to monitor the water level accurately. The sensor for common ground serves as a reference point, while the others are calibrated to detect specific water levels: low, half, high, and overflow.

When the water level falls below the low sensor, the circuit activates the corresponding output, illuminating the 7-segment display to show 'L'. As the water level rises and reaches the halfway mark, the half sensor triggers the display to change to 'H'. Finally, once the water level reaches its maximum capacity, the overflow sensor activates, and the display shows 'F' for full.

The 7404 hex inverting gate IC is used to ensure that the output signals are correctly inverted where necessary, allowing for a reliable indication of the water levels. This combination of components creates a simple yet effective water level monitoring system, suitable for various applications, including aquariums, water tanks, and reservoirs. The circuit design is efficient, cost-effective, and can be easily implemented with minimal components, making it an ideal project for both educational and practical purposes.Using this schematic electronic project can be designed a very simple water level indicator electronic circuit that uses a 7-segment display to indicate the water level (low, half and full)in the tank. This water level indicator electronic circuit shows the water level by displaying L, H and F for low, half and full, respectively.

This water level indicator electronic circuit is based on the 7408 quad two inputs and gates IC (that contains four input independent gates) and a 7404 hex inverting gates IC. The circuit uses five level sensors to sense the different water levels ( one for common GND, one for low, one for high one for half and one for overflow ).

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