Teensy 3.6 is connected to laptop through usb. Part_1_02_Hardware_Test from the Audio examples of Teensyduino outputs continuous beeping sound, which was working earlier. Yes, audio headphones are connected to jack and the audio board is properly soldered.
This is the code:
#include <Audio.h>
#include <Wire.h>
#include <SD.h>
#include <SPI.h>
#include <SerialFlash.h>
#include <Bounce.h>
AudioSynthWaveform waveform1;
AudioOutputI2S i2s1;
AudioConnection patchCord1(waveform1, 0, i2s1, 0);
AudioConnection patchCord2(waveform1, 0, i2s1, 1);
AudioControlSGTL5000 sgtl5000_1;
Bounce button0 = Bounce(0, 15);
Bounce button1 = Bounce(1, 15);
Bounce button2 = Bounce(2, 15);
int count=1;
int a1history=0, a2history=0, a3history=0;
void setup() {
AudioMemory(10);
pinMode(0, INPUT_PULLUP);
pinMode(1, INPUT_PULLUP);
pinMode(2, INPUT_PULLUP);
Serial.begin(115200);
sgtl5000_1.enable();
sgtl5000_1.volume(0.3);
waveform1.begin(WAVEFORM_SINE);
delay(1000);
button0.update();
button1.update();
button2.update();
a1history = analogRead(A1);
a2history = analogRead(A2);
a3history = analogRead(A3);
}
void loop() {
Serial.print("Beep #");
Serial.println(count);
count = count + 1;
waveform1.frequency(440);
waveform1.amplitude(0.9);
wait(250);
waveform1.amplitude(0);
wait(1750);
}
void wait(unsigned int milliseconds)
{
elapsedMillis msec=0;
while (msec <= milliseconds) {
button0.update();
button1.update();
button2.update();
if (button0.fallingEdge()) Serial.println("Button (pin 0) Press");
if (button1.fallingEdge()) Serial.println("Button (pin 1) Press");
if (button2.fallingEdge()) Serial.println("Button (pin 2) Press");
if (button0.risingEdge()) Serial.println("Button (pin 0) Release");
if (button1.risingEdge()) Serial.println("Button (pin 1) Release");
if (button2.risingEdge()) Serial.println("Button (pin 2) Release");
int a1 = analogRead(A1);
int a2 = analogRead(A2);
int a3 = analogRead(A3);
if (a1 > a1history + 50 || a1 < a1history - 50) {
Serial.print("Knob (pin A1) = ");
Serial.println(a1);
a1history = a1;
}
if (a2 > a2history + 50 || a2 < a2history - 50) {
Serial.print("Knob (pin A2) = ");
Serial.println(a2);
a2history = a2;
}
if (a3 > a3history + 50 || a3 < a3history - 50) {
Serial.print("Knob (pin A3) = ");
Serial.println(a3);
a3history = a3;
}
}
}
Could you also tell me which pin from teensy 3.6 is responsible for sending audio to the headphone jack?