Skip to content

jacobrosenthal/Goertzel

Folders and files

NameName
Last commit message
Last commit date

Latest commit

 

History

16 Commits
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Repository files navigation

Goertzel

Arduino Library implementation of the Goertzel algorithm

Example

void loop()
{
  goertzel.sample(sensorPin); //Will take n samples
  
  float magnitude = goertzel.detect();  //check them for target_freq
  
  if(magnitude>THRESHOLD) //if you're getting false hits or no hits adjust this
    digitalWrite(led, HIGH); //if found, enable led
  else
    digitalWrite(led, LOW); //if not found, or lost, disable led
    
  Serial.println(magnitude);
}

Todo

Look to replace floats for quicker running. More full featured DTMF tone detection example.

About

Arduino Library implementation of the Goertzel algorithm

Resources

Stars

Watchers

Forks

Releases

No releases published

Packages

No packages published

Languages