Can you help me design a circuit that senses when the soil moisture of a plant changes? The circuit should use a potentiometer or variable resistor to model the soil moisture. When the input voltage is (0-2.5V), it is considered "LOW". When the input voltage is (2.5-5V), it is considered "MEDIUM". When the input voltage is (5V+), it is considered "HIGH" (voltages chosen arbitrarily). NOTE: No programmable devices. Strictly NO Arduino, Raspberry Pi, or any microcontroller. When the output is high, the buzzer is OFF (indicating that the plant is fine and does not need water). When the output is medium, the buzzer turns on but does NOT beep (indicating that the plant does not need water urgently). When the output is low, the buzzer beeps (indicating that the plant needs water quickly!! An LED should also be on!)