Sunrom Blood Pressure Sensor 1437 Arduino code help

CoolestKou:
I cant display the right results to the serial monitor
Im using Arduino Uno

Perhaps it's due to using the same serial (as in, the Uno's only) port to read the sensor and print to the monitor?

I think you may need to use software serial for the sensor.

(edit: I see the comment says Serial1 for the sensor, which means it was written originally for a Mega.)

But that said, what values do you get when you just hook it up to a terminal like they do in your reference link?

edit... here's OP's code in tags

char sbuffer[30], ch;
unsigned char pos;
unsigned char read1, read2, read3;

void setup(){
  Serial.begin(9600); // Serial is used for output on PCs "Serial Monitor"
  Serial.begin(9600); // Serial1 is used for serial input from connected sensor
} 

char mygetchar(void)
{ //receive serial character from sensor (blocking while nothing received)
  while (!Serial.available());
  return Serial.read();
}

 
void loop()
{
  ch = mygetchar(); //loop till character received
  if(ch==0x0A) // if received character is <LF>, 0x0A, 10 then process buffer
  {
      pos = 0; // buffer position reset for next reading
      Serial.println("Calculating Results");
      // extract data from serial buffer to 8 bit integer value
      // convert data from ASCII to decimal
      read1 = ((sbuffer[1]-'0')*100) + ((sbuffer[2]-'0')*10) +(sbuffer[3]-'0');
      read2 = ((sbuffer[6]-'0')*100) + ((sbuffer[7]-'0')*10) +(sbuffer[8]-'0');
      read3 = ((sbuffer[11]-'0')*100) + ((sbuffer[12]-'0')*10) +(sbuffer[13]-'0');
       
      // Do whatever you wish to do with this sensor integer variables
      // Show on LCD or Do some action as per your application
      // Value of variables will be between 0-255
      
      // example: send demo output to serial monitor on "Serial"
      Serial.print(read1);
      Serial.print('\t');
      Serial.print(read2);
      Serial.print('\t');
      Serial.print(read3);
      Serial.print('\t');
      Serial.println();
  } else { //store serial data to buffer
      sbuffer[pos] = ch;
      pos++;
  }
}// end loop