float Vin = 5.0;       // Input voltage (5V)
float R_fixed = 1000;  // Fixed resistor value in ohms

void setup() {
    Serial.begin(9600);
}

void loop() {
    // Simulate changing R_var values in increments, from 0 ohms to 10,000 ohms
    for (int R_var = 0; R_var <= 10000; R_var += 1) {  // Increment R_var by 500 ohms each time
        // Calculate the output voltage based on the variable resistor
        float Vout = Vin * (R_var / (R_var + R_fixed));  // Voltage based on voltage divider equation

        // Print the results
        Serial.print("Variable Resistor: ");
        Serial.print(R_var);
        Serial.print(" ohms | Voltage: ");
        Serial.print(Vout, 2);  // Display voltage with two decimal places
        Serial.println(" V");

        delay(500);  // Wait half a second before the next increment
    }

    // Optional: Add a delay at the end of the loop before starting again
    delay(2000);  // Wait 2 seconds before repeating the loop
}