#include <Wire.h> // I2C-Headerdatei

const int adcPin = A0; // ADC-Pin
//const int toggleDelay = 0.1; // Verzögerung zwischen dem Umschalten der Bits, in Mikrosekunden
const int bufferSize = 8 * sizeof(uint32_t);

void setup() {
  Wire.begin(8); // I2C-Verbindung initialisieren
  analogReadResolution(12);
  //Serial.begin(9600);
  
  //Wire.onReceive(receiveData);
  //Wire.onRequest(sendData);

}

/*void sendData() {
  Wire.write(0xFF);
  Serial.write(0xFF);
}

void receiveData(int count) {
  Serial.write('r');
}*/

void loop() {
  uint32_t buffer[8] = {0};
  uint8_t bitCount = 0;

  for (int i = 0; i < 8; i++) {
    uint32_t randomValue = 0;
    
    while (bitCount < 32) {
      uint16_t adcValue = analogRead(adcPin);
      uint32_t newBit = adcValue & 0x01;
      randomValue = (randomValue << 1) | newBit;
      bitCount++;
      //delay(toggleDelay);
    }
  
    buffer[i] = randomValue;
    bitCount = 0;
  }

  Wire.beginTransmission(8); // I2C-Übertragung an Geräteadresse 8 starten
  for (int i = 0; i < 8; i++) {
    Wire.write((byte*)&buffer[i], sizeof(buffer[i])); // Daten über I2C-Bus senden
  }
  Wire.endTransmission(); // I2C-Übertragung beenden */
}