Abstraction Introduction: The "Simple Water Level Indicator" project aims to provide a cost-effective and easy-to-implement solution for monitoring water levels in containers or tanks. The system utilizes basic electronic components to create a visual indicator, alerting users to the status of the water level. This abstraction report outlines the key components, functionality, and applications of the project. Components: The project primarily relies on the following components: 1. Transistor (NPN type, e.g., BC547):** Acts as a switch to control the illumination of LEDs. 2. Resistors (1kΩ, 2.2kΩ, and 10kΩ):** Form voltage dividers and set the threshold for the water level. 3. LEDs (Green and Red): Visual indicators representing the water level status. 4. Wires: Connect the components on a breadboard or PCB. 5. Water Sensor Probes: Metal wires acting as sensors to detect the presence of water. Circuit Design: The circuit design involves connecting the components in a specific configuration. The NPN transistor serves as a switch, and the resistors set the threshold for water detection. The LEDs provide a visual indication of the water level, with the green LED lighting up when the water level is sufficient and the red LED indicating a low water level. Functionality: 1. Low Water Level: - The system detects a low water level when the water does not complete the circuit between the sensor probes. - The transistor remains off, and the red LED lights up, signaling a need for attention to replenish the water. 2. Adequate Water Level: - When the water level reaches the probes, completing the circuit, the transistor switches on. - The green LED illuminates, indicating that the water level is above the desired threshold and is at an acceptable level. Applications: The Simple Water Level Indicator finds applications in various scenarios, including: - Home Water Tanks: Monitoring water levels in household water tanks. - Agricultural Irrigation: Ensuring an adequate water supply for plants in agricultural settings. - Industrial Use: Monitoring water levels in industrial processes or cooling systems. Conclusion: The Simple Water Level Indicator project offers a straightforward yet effective solution for water level monitoring. Its low-cost design and ease of implementation make it accessible for a wide range of users. By providing a visual indication of water levels, the project contributes to water conservation efforts and facilitates efficient water management in various applications.