Led Random Color Delay Value Problem

can point out issue in code doesnt work properly. after sent value delay of how fast led switches color should switch led color stays constant. ideas appreciated

code: [select]

const int redpin = 3;
const int greenpin = 5;
const int bluepin = 6;
 
int red1 = 0;
int green1 = 0;
int blue1 = 0;
int delayvalue = 0;
 
void setup() {
  serial.begin(9600);
  pinmode(redpin, output);
  pinmode(greenpin, output);
  pinmode(bluepin, output);
}
 
void loop() {
    int delayvalue = serial.parseint();
  while (serial.available() > 0) {
    if (serial.read() == '\n') {
         
      red1 = random(0, 255);
      green1 = random(0, 255);
      blue1 = random(0, 255);
     
      analogwrite(redpin, red1);
      analogwrite(greenpin, green1);
      analogwrite(bluepin, blue1);
      delay(delayvalue);
    }
}
}

i don't think code likes delay(0);  has been a discussion topic before. try making @ least 1, or comment out.

add serial print of delayvalue after line, see you're getting.

code: [select]


void loop() {
    int delayvalue = serial.parseint();


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