const int analogPin = 34; // Analog pin connected to the variable resistor
const int currentSensePin = 35; // Analog pin connected to the current sensing resistor
const float referenceVoltage = 3.3; // Reference voltage of the ESP32
void setup() {
Serial.begin(115200);
}
void loop() {
// Read analog values
int analogValue = analogRead(analogPin); // Read voltage from variable resistor
int currentSenseValue = analogRead(currentSensePin); // Read voltage from current sensing resistor
// Convert analog values to physical quantities
float voltage = analogValue * referenceVoltage / 4095.0; // Convert analog value to voltage (12-bit ADC)
float current = currentSenseValue * referenceVoltage / 4095.0; // Convert analog value to current
// Calculate power and resistor values
float power = voltage * current;
float resistor = voltage / current;
// Increment the counter with each loop iteration
static int counter = 0;
counter++;
// Create a string with comma-separated values, including the counter
String outputString = "Mesurment No." + String(counter) + "," + String(voltage) + " V," + String(current) + " A," + String(power) + " W," + String(resistor) + " ohms";
// Print the string to the serial monitor
Serial.println(outputString);
delay(1000); // You can adjust the delay based on your needs
}