Simple way to plot PWM over time

Question

I want to plot the PWM emitted by pin 9 and read by pin 0 in a static PWM signal (like an oscilloscope can do). Is there a simple way to do that?

int pwm = 254;
float pulse1;

void setup() {
  pinMode(9, OUTPUT);
  pinMode(0, INPUT);
  Serial.begin(115200);
}

void loop() {
  analogWrite(9, pwm);
  pulse1 = pulseIn(0, pwm);

  Serial.println(analogRead(0));
//  Serial.println(pulse1);  
}

I am using an Arduino Uno.

Answer 1

I assume you want to graph the data you receive through the serial monitor. If it is so, you can print a comma after each value -> save the output of the serial monitor to a file with CSV extension -> open the file with MS Excel (or similar)