multiple graphs on serial plotter

Question

I'm trying to run an Arduino code that simultaneously: 1) blinks an led on-off every 3 seconds 2) gets a voltage input from an EMG sensor and positions a servo motor accordingly

While I run this program, I'd like to plot the following on the same graph 1) LED status on/off printed as 600 if on and 0 if off 2) EMG value being fed to the arduino 3) The angle the Arduino is sending to the servo motor

I wrote the following code which works to an extent but the problem I'm facing is, I only get two graphs on the plotter instead of 3, I think the EMG value and the angle have combined into a single line as seen in this picture:

However, if I remove the angle print statement, I get a proper graph for the other 2 as this:

How do I change my code so I can plot all three separately? Thanks in advance.

#include <Servo.h>
Servo myservo;
const int ledPin =  LED_BUILTIN;
int ledState = LOW;
unsigned long previousMillis = 0;
const long interval = 3000;
int led=0;
int servovalue=0; 
void setup() {
  Serial.begin(9600);
  myservo.attach(9);
  pinMode(ledPin, OUTPUT);
}

void loop() {
  int sensorValue = analogRead(A0);    
int angle = map(sensorValue, 0, 1023, 0, 180);
myservo.write(angle);
Serial.print(sensorValue);
Serial.print(“ ”)
Serial.println(angle);
delay(15);
  unsigned long currentMillis = millis();

  if (currentMillis - previousMillis >= interval) {
    previousMillis = currentMillis;
    if (ledState == LOW) {
      ledState = HIGH;
      led = 600;
    } else {
      ledState = LOW;
      led = 0;
    }
    digitalWrite(ledPin, ledState);
  }
  Serial.print(" ");
    Serial.println(led);
}

Answer 1

The part of your code that prints data to the serial looks like this:

void loop() {
    (...)
    Serial.print(sensorValue);
    Serial.print(“ ”)
    Serial.println(angle);
    (...)
    Serial.print(" ");
    Serial.println(led);
}

The bug is in the Serial.println(angle); line. The println method inserts a "newline" character at the end. Try changing it to Serial.print(angle); so there is only one "newline" character.

void loop() {
    (...)
    Serial.print(sensorValue);
    Serial.print(“ ”)
    Serial.print(angle);
    (...)
    Serial.print(" ");
    Serial.println(led);
}