char data_rx;
int bitDelay = 1000;
int halfBitDelay = 1500;
int rx = 2;

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  pinMode(rx,INPUT);
}

void loop() {
  delayMicroseconds(halfBitDelay);
    for (int offset = 0; offset < 8; offset++) {
      delayMicroseconds(bitDelay);
      data_rx |= digitalRead(rx) << offset;
    }
  Serial.print(data_rx);
}