Smart Energy Tile
Harvesting Footstep Kinetics

// Core telemetry config for Smart Energy Tile
const int analogPin = A0;      // Transducer monitoring voltage divider input
const float V_REF = 5.0;       // Arduino analog operational reference voltage
const float R1 = 10000.0;      // Voltage divider Resistor 1 (10K ohms)
const float R2 = 4700.0;       // Voltage divider Resistor 2 (4.7K ohms)
const float divisionRatio = (R1 + R2) / R2; // Division factor scaling ratio

void setup() {
  Serial.begin(9600);
  pinMode(analogPin, INPUT);
  Serial.println("--- SMART PIEZOELECTRIC HARVESTER INITIALIZED ---");
}

void loop() {
  int rawADC = analogRead(analogPin);
  
  // Interpolate analog readings to absolute capacitor terminal volts
  float measuredVoltage = (rawADC * V_REF) / 1023.0;
  float capacitorVoltage = measuredVoltage * divisionRatio;

  // Telemetry terminal diagnostic print
  Serial.print("ADC Value: ");
  Serial.print(rawADC);
  Serial.print(" | Terminal Voltage: ");
  Serial.print(capacitorVoltage, 2);
  Serial.println("V");

  delay(250); // Non-blocking timer loops deployed in deployment builds
}