Function generator library

Projects General Guidance
1

Here is code I have found for generating a triangle wave using the library. What is the additional code you would need to print out the triangle wave on the serial monitor? Not much point in generating a triangle wave on pin 9 if you can't see it or use it.
I have no idea how to use the hyperlink or anything else to show you the entire article that discusses how to get a triangle wave. So I am just showing the code.
#include <FunctionGenerator.h>

FunctionGenerator waveform;

void setup() {
// Initialize the waveform object
waveform.begin();
// Set the output pin (e.g., digital pin 9)
waveform.setOutputPin(9);
// Set the frequency (e.g., 1000 Hz)
waveform.setFrequency(1000);
// Set the amplitude (e.g., 50% duty cycle)
waveform.setAmplitude(0.5);
// Set the waveform type to triangle
waveform.setWaveformType(TRIANGLE);
}

void loop() {
// Start generating the triangle wave
waveform.start();
delay(5000); // Wait for 5 seconds
// You can optionally stop the waveform generation
// waveform.stop();
}

t#include <FunctionGenerator.h>

FunctionGenerator waveform;

void setup() {
  // Initialize the waveform object
  waveform.begin();
  // Set the output pin (e.g., digital pin 9)
  waveform.setOutputPin(9);
  // Set the frequency (e.g., 1000 Hz)
  waveform.setFrequency(1000);
  // Set the amplitude (e.g., 50% duty cycle)
  waveform.setAmplitude(0.5);
  // Set the waveform type to triangle
  waveform.setWaveformType(TRIANGLE);
}

void loop() {
  // Start generating the triangle wave
  waveform.start();
  delay(5000); // Wait for 5 seconds
  // You can optionally stop the waveform generation
  // waveform.stop();
}ype or paste code here
2

Use an oscilloscope to make it visible. Usage depends on what you need it for.

Just past the hyperlink in a reply.

3

The only library called FunctionGenerator I could find is the one by robtillart GitHub - RobTillaart/FunctionGenerator: Arduino library to generate wave forms (nummeric) for a DAC, but your example code does not seem to be compatible with that library.

The best way is to put some kind of "scope" on pin 9. You could even make a simple scope using another Arduino.

However, on Uno the analog output is actually PWM at 490Hz, so even if you print the value of the pin it would not show a triangle output. Since the Uno does not have an internal DAC, you need some external circuit to convert the PWM into an analog waveform.