Arduino - The Tone function
The Tone function is an easy way to make some noise with your Arduino.
A basic circuit. Example 1
The resistor is 100 Ohms.
Just need a Piezo speaker, breadboard & an Uno
we need just 2 arguments
1 pin
2 frequency in Hz - determines pitch
1 pin
2 frequency in Hz - determines pitch
tone(Pin, Hz)
tone(piezoPin, 100)
The frequency can be any number between 0 and 65,535.
Note that most noises that can be heard with the human ears range between 2k & 5k
Here is the code:
Here is the code:
//-------------------------------------
// demo of tone function
// variables
int piezoPin = 8;
void setup(){
}
void loop(){
/*
we need just 2 arguments
1 pin
2 frequency in Hz - determines pitch
*/
// create a tone ... tone();
tone(piezoPin, 100); // play around with this last number
}
// variables
int piezoPin = 8;
void setup(){
}
void loop(){
/*
we need just 2 arguments
1 pin
2 frequency in Hz - determines pitch
*/
// create a tone ... tone();
tone(piezoPin, 100); // play around with this last number
}
//---------------------------------------------------
Example 2
Creating a beat.
Add a duration period - the last parameter (and a delay to your code).
The tone function is
tone(Pin, Hz,duration in milliseconds)
tone(piezoPin, 100, 500)
Here is an example of your new code
//----------------
// demo of tone function 2
// variables
int piezoPin = 8;
void setup(){
}
void loop(){
/*
we need just 3 arguments
1 pin
2 frequency in Hz - determines pitch
3 duration
*/
// create a tone ... tone();
tone(piezoPin, 3000, 500);
delay(1500);
}
// variables
int piezoPin = 8;
void setup(){
}
void loop(){
/*
we need just 3 arguments
1 pin
2 frequency in Hz - determines pitch
3 duration
*/
// create a tone ... tone();
tone(piezoPin, 3000, 500);
delay(1500);
}
//-----------------------------
Note, to add 1 second between each sound
you need to use a duration of 500ms, and a delay of 1500ms
Limitations
Don't use analogWrite on pins 3 & 11 if you are using the tone function
Links
+ https://www.programmingelectronics.com/an-easy-way-to-make-noise-with-arduino-using-tone/
+ https://www.youtube.com/watch?v=1_LMAgO14z0
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