Hallo, ich bastel gerade an einem Sample-Player mit einem Teensy 4.0 mit Audioboard und einem Adafruit Neotrellis.
Das läuchten der Tasten funktioniert super.
Ich bekomme es aber nicht hin mir den gedrückten button ausgeben zu lassen um damit einen Suond zu triggern.
#include <Audio.h>
#include <Wire.h>
#include <SPI.h>
#include <SD.h>
#include <SerialFlash.h>
#include "Adafruit_NeoTrellis.h"
// WAV files converted to code by wav2sketch
#include "AudioSampleSnare.h" // http://www.freesound.org/people/KEVOY/sounds/82583/
#include "AudioSampleTomtom.h" // http://www.freesound.org/people/zgump/sounds/86334/
#include "AudioSampleHihat.h" // http://www.freesound.org/people/mhc/sounds/102790/
#include "AudioSampleKick.h" // http://www.freesound.org/people/DWSD/sounds/171104/
#include "AudioSampleGong.h" // http://www.freesound.org/people/juskiddink/sounds/86773/
#include "AudioSampleCashregister.h" // http://www.freesound.org/people/kiddpark/sounds/201159/
// Create the Audio components. These should be created in the
// order data flows, inputs/sources -> processing -> outputs
//
AudioPlayMemory sound0;
AudioPlayMemory sound1; // six memory players, so we can play
AudioPlayMemory sound2; // all six sounds simultaneously
AudioPlayMemory sound3;
AudioPlayMemory sound4;
AudioPlayMemory sound5;
AudioMixer4 mix1; // two 4-channel mixers are needed in
AudioMixer4 mix2; // tandem to combine 6 audio sources
AudioOutputI2S headphones;
AudioOutputAnalog dac; // play to both I2S audio board and on-chip DAC
// Create Audio connections between the components
//
AudioConnection c1(sound0, 0, mix1, 0);
AudioConnection c2(sound1, 0, mix1, 1);
AudioConnection c3(sound2, 0, mix1, 2);
AudioConnection c4(sound3, 0, mix1, 3);
AudioConnection c5(mix1, 0, mix2, 0); // output of mix1 into 1st input on mix2
AudioConnection c6(sound4, 0, mix2, 1);
AudioConnection c7(sound5, 0, mix2, 2);
AudioConnection c8(mix2, 0, headphones, 0);
AudioConnection c9(mix2, 0, headphones, 1);
AudioConnection c10(mix2, 0, dac, 0);
// Create an object to control the audio shield.
//
AudioControlSGTL5000 audioShield;
// NeoTrellis
//
Adafruit_NeoTrellis trellis;
//define a callback for key presses
TrellisCallback blink(keyEvent evt){
// Check is the pad pressed?
if (evt.bit.EDGE == SEESAW_KEYPAD_EDGE_RISING) {
//Serial.println(evt.bit.NUM);
trellis.pixels.setPixelColor(evt.bit.NUM, Wheel(map(evt.bit.NUM, 0, trellis.pixels.numPixels(), 0, 255))); //on rising
} else if (evt.bit.EDGE == SEESAW_KEYPAD_EDGE_FALLING) {
// or is the pad released?
trellis.pixels.setPixelColor(evt.bit.NUM, 0); //off falling
}
// Turn on/off the neopixels!
trellis.pixels.show();
return 0;
}
void setup() {
//NeouTrellis setup
//
Serial.begin(115200);
//while(!Serial);
if (!trellis.begin()) {
Serial.println("Could not start trellis, check wiring?");
while(1);
} else {
Serial.println("NeoPixel Trellis started");
}
//activate all keys and set callbacks
for(int i=0; i<NEO_TRELLIS_NUM_KEYS; i++){
trellis.activateKey(i, SEESAW_KEYPAD_EDGE_RISING);
trellis.activateKey(i, SEESAW_KEYPAD_EDGE_FALLING);
trellis.registerCallback(i, blink);
}
//do a little animation to show we're on
for (uint16_t i=0; i<trellis.pixels.numPixels(); i++) {
trellis.pixels.setPixelColor(i, Wheel(map(i, 0, trellis.pixels.numPixels(), 0, 255)));
trellis.pixels.show();
delay(50);
}
for (uint16_t i=0; i<trellis.pixels.numPixels(); i++) {
trellis.pixels.setPixelColor(i, 0x000000);
trellis.pixels.show();
delay(50);
}
// Audio connections require memory to work. For more
// detailed information, see the MemoryAndCpuUsage example
AudioMemory(10);
// turn on the output
audioShield.enable();
audioShield.volume(0.5);
// by default the Teensy 3.1 DAC uses 3.3Vp-p output
// if your 3.3V power has noise, switching to the
// internal 1.2V reference can give you a clean signal
//dac.analogReference(INTERNAL);
// reduce the gain on mixer channels, so more than 1
// sound can play simultaneously without clipping
mix1.gain(0, 0.4);
mix1.gain(1, 0.4);
mix1.gain(2, 0.4);
mix1.gain(3, 0.4);
mix2.gain(1, 0.4);
mix2.gain(2, 0.4);
}
void loop() {
trellis.read(); // interrupt management does all the work! :)
delay(20); //the trellis has a resolution of around 60hz
// When the buttons are pressed, just start a sound playing.
// The audio library will play each sound through the mixers
// so any combination can play simultaneously.
//
// if (button0.fallingEdge()) {
// sound0.play(AudioSampleSnare);
// }
// if (button1.fallingEdge()) {
// sound1.play(AudioSampleTomtom);
// }
// if (button2.fallingEdge()) {
// sound2.play(AudioSampleHihat);
// }
// if (button3.fallingEdge()) {
// sound3.play(AudioSampleKick);
// }
// if (button4.fallingEdge()) {
// // comment this line to work with Teensy 3.0.
// // the Gong sound is very long, too much for 3.0's memory
// sound4.play(AudioSampleGong);
// }
// if (button5.fallingEdge()) {
// sound5.play(AudioSampleCashregister);
// }
}
/******************************************/
// Input a value 0 to 255 to get a color value.
// The colors are a transition r - g - b - back to r.
uint32_t Wheel(byte WheelPos) {
if(WheelPos < 85) {
return trellis.pixels.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
} else if(WheelPos < 170) {
WheelPos -= 85;
return trellis.pixels.Color(255 - WheelPos * 3, 0, WheelPos * 3);
} else {
WheelPos -= 170;
return trellis.pixels.Color(0, WheelPos * 3, 255 - WheelPos * 3);
}
return 0;
}
