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Made changes to TonePitchFollower example for clarity, suggestions by user Michael Flynn

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Tom Igoe 2012-05-31 18:23:59 -04:00
parent ca181e3318
commit 4b7bc3b584
1 changed files with 8 additions and 2 deletions
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10
build/shared/examples/02.Digital/tonePitchFollower/tonePitchFollower.ino
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@ -9,8 +9,13 @@
* 4.7K resistor on analog 0 to ground * 4.7K resistor on analog 0 to ground
created 21 Jan 2010 created 21 Jan 2010
<<<<<<< HEAD:build/shared/examples/02.Digital/tonePitchFollower/tonePitchFollower.ino
modified 9 Apr 2012 modified 9 Apr 2012
by Tom Igoe by Tom Igoe
=======
modified 31 May 2012
by Tom Igoe, with suggestion from Michael Flynn
>>>>>>> Made changes to TonePitchFollower example for clarity, suggestions by user Michael Flynn:build/shared/examples/2.Digital/tonePitchFollower/tonePitchFollower.ino
This example code is in the public domain. This example code is in the public domain.
@ -29,10 +34,11 @@ void loop() {
int sensorReading = analogRead(A0); int sensorReading = analogRead(A0);
// print the sensor reading so you know its range // print the sensor reading so you know its range
Serial.println(sensorReading); Serial.println(sensorReading);
// map the pitch to the range of the analog input. // map the analog input range (in this case, 400 - 1000 from the photoresistor)
// to the output pitch range (120 - 1500Hz)
// change the minimum and maximum input numbers below // change the minimum and maximum input numbers below
// depending on the range your sensor's giving: // depending on the range your sensor's giving:
int thisPitch = map(sensorReading, 400, 1000, 100, 1000); int thisPitch = map(sensorReading, 400, 1000, 120, 1500);
// play the pitch: // play the pitch:
tone(9, thisPitch, 10); tone(9, thisPitch, 10);