IDK what you mean the difference between static and dynamic to be.
If you are sending values out at a higher rate than typing them in one at a time (wherever), then this
while (Serial.available() > 0) {
Serial.read();
}
the purpose of which is a mystery to me, may be an issue.
So… why you do that?
And… what means dynamic vs. static?
BTW, the receiving entity has no idea what the sender did to create the characters it transmits. It is on the Arduino board that we might prefer to void Strings; here that is easily done as you see.
a7