Play the French Can Can Using an Arduino and Buzzer

Step 5 Create Starting Sketch

To answer the question, "How do I make the buzzer make noise?", I did a Google Search for [CEM-1203 arduino make noise]. Near the top there was a blog link labeled Buzzer Arduino Example Code written by Ron Faludi. Ron shared his code here (Thanks Ron! You're awesome!). 

Copy between the lines:

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// Buzzer example function for the CEM-1203 buzzer (Sparkfun's part #COM-07950).
// by Rob Faludi
// http://www.faludi.com

void setup() {
  pinMode(4, OUTPUT); // set a pin for buzzer output
}

void loop() {
  buzz(4, 2500, 500); // buzz the buzzer on pin 4 at 2500Hz for 1000 milliseconds
  delay(1000); // wait a bit between buzzes
}

void buzz(int targetPin, long frequency, long length) {
  long delayValue = 1000000/frequency/2; // calculate the delay value between transitions
  //// 1 second's worth of microseconds, divided by the frequency, then split in half since
  //// there are two phases to each cycle
  long numCycles = frequency * length/ 1000; // calculate the number of cycles for proper timing
  //// multiply frequency, which is really cycles per second, by the number of seconds to
  //// get the total number of cycles to produce
 for (long i=0; i < numCycles; i++){ // for the calculated length of time...
    digitalWrite(targetPin,HIGH); // write the buzzer pin high to push out the diaphram
    delayMicroseconds(delayValue); // wait for the calculated delay value
    digitalWrite(targetPin,LOW); // write the buzzer pin low to pull back the diaphram
    delayMicroseconds(delayValue); // wait againf or the calculated delay value
  }
}

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Copy and paste this code into the Arduino IDE, and save the sketch as some descriptive name like 'buzzerExample'. Descriptive names will help in the future once you have many files in one place to sort through.

Comments

[michielrutjes]

The guy's name is "Rob", not "Ron" Faludi ;) Excellent instructable!