Writing from Serial

[sterretje]

@reece_clayton

For example, I may type "HELLO", "H" gets transmitted and then the rest of the "ELLO" comes after my set delay.

If I understand the code correctly, it is this part of the code that does not behave as expected.

@reece_clayton

  while (Serial.available() > 0) {
    lcd.write(Serial.read());
  }

If so, I suggest that you read (and learn from ) Robin's updated Serial Input Basics; example 2 or 3 for starters.

The problem is that your code executes faster than the data comes in. So the E might still be in transmission and not completely received. If you collect the data first (as demonstrated in above link), you will not have the problem.