Arduino Uno USART speed

[goksel82]

I have an arduino uno board. I am trying to send a value from my computer to my arduino uno board serially using USART. However my arduino board is not receiving the value at the promised USART speed. For example I am sending the value from my computer at 115200 bps but my arduino uno board is not receiving the value at this speed. I know this because when I send the value repeteadly my arduino uno board can not keep up with the speed. I need to know the reason for this.

[UKHeliBob]

Welcome to the forum

Your topic has been moved to the Programming category of the forum as it is not a suggestion for the Arduino project itself

Please post your sketch, using code tags when you do

[srnet]

Could be a problem in your code.

[david_2018]

If the UNO receives the data correctly for even a short time, then the baud rate would have to be correct, otherwise nothing would ever be received.

[groundFungus]

Make sure your baud rates match.

Look to the serial input basics tutorial for robust ways to receive data.

[goksel82]

Here is the code that I am using:

int x = 0;
int T2 = 5;


void setup() {
  // put your setup code here, to run once:
  Serial.begin(115200);
  pinMode(13,OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  ledblink:

  if (Serial.available() > 0) {
    x = Serial.readString().toInt();
  }
  else {
    goto ledblink;
  }

  if (x == 5) {
    digitalWrite(13,HIGH);
    delay(T2);
    digitalWrite(13,LOW);
    delay(T2);
  }

  
}

[goksel82]

I am receving the data correctly. My baudrates are correct.

[goksel82]

My baudrates match.