#include <Arduino.h>
#include <Wire.h>


const int POT_PIN    = 1;          // Potentiometer / Messwert
const int LED_PIN    = 4;          // Status-LED

const int SLEEP_TIME_SEC   = 1000; //Messzyklus Zeit in Mikrosekunden

int PIN_STATE = 0;
int MeasureCount = 0;


void setup() {
  Serial.begin(9600);
  delay(500);

  pinMode(LED_PIN, OUTPUT);


  MeasureCount++;

  digitalWrite(LED_PIN, HIGH);

  Serial.println();
  Serial.println("ESP32-C3 Data Logger");
  Serial.printf("Messung Nr.: %d\n", MeasureCount);


  // Pin auslesen
  int raw = analogRead(POT_PIN);
  float voltage = raw * (3.3f / 4095.0f);

  Serial.printf("Analog raw value: %d\n", raw);
  Serial.printf("Approx. voltage : %.2f V\n", voltage);


  Serial.printf("Wartezeit bis zur erneuten Messung: %i Sekunde(n)...\n", SLEEP_TIME_SEC / 1000);
  delay(SLEEP_TIME_SEC);
  digitalWrite(LED_PIN, LOW);
  Serial.flush();
}

void loop() {
  setup();
}