Clapping music with Arduino - Revision history

Michael Murtaugh: /* Clapping music.c */

2010-10-26T17:37:12Z

Clapping music.c

@@ Line 97: / Line 97: @@
 Now, using a [[C]] string with the [[Clapping music]] pattern.
-The clapping pattern might be imlemented using ''tone'' in the following way:
+The clapping pattern can be implemented using calls to tone & delay:
 <source lang="c">
 int speakerPin = 13;
 int thedelay = 100;
 char pat[] = "xxx xx x xx ";
 int patlen = strlen(pat);
@@ Line 138: / Line 172: @@
 </source>
+Notice how above the code is highly repetitive -- perfect for a loop!
 <source lang="c">
@@ Line 160: / Line 194: @@
          i = i+1;
+     }
-    // the above could also be written in "shorthand" using the for statement...
+char pat[] = "xxx xx x xx ";
-     /*
+int patlen = strlen(pat);
      for (i=0; i<12; i+=1) {
          if (pat[i] == 'x') tone(speakerPin, 400, 10);
          delay(thedelay);
+     }
-     */
+     delay(thedelay*10);
      delay(thedelay*10);
+}
 </source>
 <source lang="c">
@@ Line 177: / Line 254: @@
 int thedelay = 100;
 char pat[]  = "x xx xxx xxxx xxxxx ";
 int patlen = strlen(pat);
@@ Line 192: / Line 268: @@
          i2 = i+5;
          if (i2 >= patlen) i2 = i2 - patlen;
-         //  maybe the % modulo operator could help!
+         //  maybe the % modulo operator could help here!!!
          if (pat[i] == 'x') tone(speakerPin, 400, 10);

Michael Murtaugh: /* Clapping music.c */

2010-10-26T17:29:39Z

Clapping music.c

@@ Line 96: / Line 96: @@
 Now, using a [[C]] string with the [[Clapping music]] pattern.
 <source lang="c">
@@ Line 101: / Line 144: @@
 int thedelay = 100;
 char pat[] = "xxx xx x xx ";
 int patlen = strlen(pat);

Michael Murtaugh: /* Clapping music.c */

2010-10-26T17:25:26Z

Clapping music.c

← Older revision		Revision as of 19:25, 26 October 2010
Line 98:		Line 98:

	<source lang="c">		<source lang="c">
	int speakerPin = 8;		int speakerPin = 13;
	int thedelay = 100;		int thedelay = 100;

	// char keycode = 'x';		// char keycode = 'x';
	char pat[] = "x xx ~~xxx xxxx xxxxx~~ ";		char pat[] = "xxx xx x xx ";
	int patlen = strlen(pat);		int patlen = strlen(pat);

Line 132:		Line 132:

	<source lang="c">		<source lang="c">
	~~char pat[] = "xxx xx x xx ";~~		int speakerPin = 13;

	~~void setup() {~~
	~~int patlen = strlen(pat);~~

	~~for (int p=0; p<patlen; p++) {~~
	~~if (pat[p] == 'x') {~~
	~~tone(8, 500, 10);~~
	}
	~~delay(100);~~
	}
	}

	~~void loop () {}~~
	~~</source>~~


	~~<source lang="c">~~
	int speakerPin = 8;
	int thedelay = 100;		int thedelay = 100;

Line 181:		Line 163:
	}		}
	</source>		</source>

	~~Tone only technically supports playing one tone at a time; how might it be possible to still produce something like the 2 parts necessary for clapping music.~~

	[[User:Laura Macchini/prototyping/ArduinoClappingMusic \| Laura's Clapping Music with Arduino]]		[[User:Laura Macchini/prototyping/ArduinoClappingMusic \| Laura's Clapping Music with Arduino]]

	[[User:Laurier Rochon/prototyping/clapping music button \| Laurier's Clapping Music with Arduino and button]]		[[User:Laurier Rochon/prototyping/clapping music button \| Laurier's Clapping Music with Arduino and button]]

Michael Murtaugh: /* Clapping music.c */

2010-10-26T17:23:26Z

Clapping music.c

← Older revision		Revision as of 19:23, 26 October 2010
Line 119:		Line 119:
	}		}

	// ~~can~~ be written in "shorthand" using the for statement...		// the above could also be written in "shorthand" using the for statement...
	/*		/*
	for (i=0; i<12; i+=1) {		for (i=0; i<12; i+=1) {

Michael Murtaugh: /* tone */

2010-10-26T17:22:39Z

tone

← Older revision		Revision as of 19:22, 26 October 2010
Line 59:		Line 59:
	* Starting point is the Example > Digital > toneMelody		* Starting point is the Example > Digital > toneMelody

	'''Important''': ''tone'' is a unique command in that it is ''asynchronous'', meaning that when you call the function it starts playing the tone, but immediately returns control to your program. In Bash terms, it's like starting the program with the '&' character at the end -- the command runs "in the background". This is important to know, because you '''need~~'''~~to use the delay command to play consecutive tones, otherwise each call to tone undoes the previous ones.		'''Important''': ''tone'' is a unique command in that it is ''asynchronous'', meaning that when you call the function it starts playing the tone, but immediately returns control to your program. In Bash terms, it's like starting the program with the '&' character at the end -- the command runs "in the background". This is important to know, because you '''need to use the delay''' command to play consecutive tones, otherwise each call to tone undoes the previous ones.

	'''So, the wrong way would be:'''		'''So, the wrong way would be:'''

Michael Murtaugh: /* tone */

2010-10-26T17:22:09Z

tone

← Older revision		Revision as of 19:22, 26 October 2010
Line 59:		Line 59:
	* Starting point is the Example > Digital > toneMelody		* Starting point is the Example > Digital > toneMelody

			'''Important''': ''tone'' is a unique command in that it is ''asynchronous'', meaning that when you call the function it starts playing the tone, but immediately returns control to your program. In Bash terms, it's like starting the program with the '&' character at the end -- the command runs "in the background". This is important to know, because you '''need'''to use the delay command to play consecutive tones, otherwise each call to tone undoes the previous ones.

			'''So, the wrong way would be:'''
	<source lang="c">		<source lang="c">
			int speakerPin = 13;
	void setup() {		void setup() {
	tone(8, 500, 100);		tone(speakerPin, 500, 100);
	~~delay~~(100);		tone(speakerPin, 600, 100);
	tone(8, ~~600~~, 100);		tone(speakerPin, 700, 100);
			tone(speakerPin, 800, 100);
			tone(speakerPin, 900, 100);
			}
			void loop() {}
			</source>

			'''And the right way is instead:'''
			<source lang="c">
			int speakerPin = 13;
			void setup() {
			tone(speakerPin, 500, 100);
	delay(100);		delay(100);
	tone(8, ~~700~~, 100);		tone(speakerPin, 600, 100);
	delay(100);		delay(100);
	tone(8, ~~800~~, 100);		tone(speakerPin, 700, 100);
	delay(100);		delay(100);
	tone(8, ~~900~~, 100);		tone(speakerPin, 800, 100);
	delay(100);		delay(100);
			tone(speakerPin, 900, 100);
			delay(100);
	}		}

	void loop() {}		void loop() {}
	</source>		</source>


	== Clapping music.c ==		== Clapping music.c ==

Michael Murtaugh: /* Blink music */

2010-10-26T17:17:26Z

Blink music

← Older revision		Revision as of 19:17, 26 October 2010
Line 50:		Line 50:
	}		}
	}		}

			void loop () {}
	</source>		</source>

Michael Murtaugh: /* Clapping music.c */

2010-10-26T16:06:01Z

Clapping music.c

← Older revision		Revision as of 18:06, 26 October 2010
Line 129:		Line 129:

	void loop () {}		void loop () {}
			</source>


			<source lang="c">
			int speakerPin = 8;
			int thedelay = 100;

			// char keycode = 'x';
			char pat[] = "x xx xxx xxxx xxxxx ";
			int patlen = strlen(pat);

			void setup()
			{
			}

			void loop ()
			{
			int i = 0;
			int i2 = 0;
			while (i<patlen) {
			i2 = i+5;
			if (i2 >= patlen) i2 = i2 - patlen;
			// maybe the % modulo operator could help!

			if (pat[i] == 'x') tone(speakerPin, 400, 10);
			delay(10);
			if (pat[i2] == 'x') tone(speakerPin, 800, 10);
			delay(thedelay);

			i = i+1;
			}

			delay(thedelay*10);
			}
	</source>		</source>

Michael Murtaugh: /* Clapping music.c */

2010-10-26T15:40:43Z

Clapping music.c

← Older revision		Revision as of 17:40, 26 October 2010
Line 80:		Line 80:
	Now, using a [[C]] string with the [[Clapping music]] pattern.		Now, using a [[C]] string with the [[Clapping music]] pattern.

			<source lang="c">
	int speakerPin = 8;		int speakerPin = 8;
	int thedelay = 100;		int thedelay = 100;
Line 88:		Line 88:
	int patlen = strlen(pat);		int patlen = strlen(pat);

	~~<source lang="c">~~
	void setup()		void setup()
	{		{

Michael Murtaugh: /* Clapping music.c */

2010-10-26T15:40:20Z

Clapping music.c

← Older revision		Revision as of 17:40, 26 October 2010
Line 79:		Line 79:

	Now, using a [[C]] string with the [[Clapping music]] pattern.		Now, using a [[C]] string with the [[Clapping music]] pattern.


			int speakerPin = 8;
			int thedelay = 100;

			// char keycode = 'x';
			char pat[] = "x xx xxx xxxx xxxxx ";
			int patlen = strlen(pat);

			<source lang="c">
			void setup()
			{
			}

			void loop ()
			{
			int i = 0;

			while (i<patlen) {
			if (pat[i] == 'x') tone(speakerPin, 400, 10);
			delay(thedelay);
			i = i+1;
			}

			// can be written in "shorthand" using the for statement...
			/*
			for (i=0; i<12; i+=1) {
			if (pat[i] == 'x') tone(speakerPin, 400, 10);
			delay(thedelay);
			}
			*/

			delay(thedelay*10);
			}
			</source>

	<source lang="c">		<source lang="c">