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- // demonstrate pulse with slow changes in pulse width
-
- #include <Audio.h>
- #include <Wire.h>
- #include <SPI.h>
- #include <SD.h>
- #include <SerialFlash.h>
-
- // GUItool: begin automatically generated code
- AudioSynthWaveform waveform1; //xy=188,240
- AudioEffectEnvelope envelope1; //xy=371,237
- AudioOutputI2S i2s1; //xy=565,241
- AudioConnection patchCord1(waveform1, envelope1);
- AudioConnection patchCord2(envelope1, 0, i2s1, 0);
- AudioConnection patchCord3(envelope1, 0, i2s1, 1);
- AudioControlSGTL5000 audioShield; //xy=586,175
- // GUItool: end automatically generated code
-
-
- void setup(void)
- {
-
- // Set up
- AudioMemory(8);
- audioShield.enable();
- audioShield.volume(0.45);
-
- waveform1.pulseWidth(0.5);
- waveform1.begin(0.4, 220, WAVEFORM_PULSE);
-
- envelope1.attack(50);
- envelope1.decay(50);
- envelope1.release(250);
-
- }
-
- void loop() {
-
- float w;
- for (uint32_t i =1; i<20; i++) {
- w = i / 20.0;
- waveform1.pulseWidth(w);
- envelope1.noteOn();
- delay(800);
- envelope1.noteOff();
- delay(600);
- }
- }
-
-
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