const unsigned long frequency = 250; // Interval in milliseconds
unsigned long previousMillis = 0;    // Store the last time a bit was output
uint8_t byteValue = 0b10001010;      // Example byte value
int currentBitIndex = 0;             // Index of the current bit being processed
int x;
void setup() {
  Serial.begin(9600);
}

void loop() {
  unsigned long currentMillis = millis();

  if (currentMillis - previousMillis >= frequency) {
    previousMillis = currentMillis;
    
    // Extract and print the current bit
    int bitValue = (byteValue >> (7 - currentBitIndex)) & 0x01;
    x = bitValue;
    // Move to the next bit
    currentBitIndex++;
    // If all bits are processed, reset the index
    if (currentBitIndex >= 8) {
      currentBitIndex = 0;
      // Here you can reset or change the byteValue if needed
      // byteValue = 0b01010101; // Example of changing the byte value
    }
  }
Serial.println(x);
  // Other non-blocking code can go here
}