187 lines
5 KiB
C++
187 lines
5 KiB
C++
/*
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* CopyLeft 2022 Pascal Engélibert
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*
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* This program is free software: you can redistribute it and/or modify it under the terms of the GNU Affero General Public License as published by the Free Software Foundation, version 3 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more details.
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You should have received a copy of the GNU Affero General Public License along with this program. If not, see https://www.gnu.org/licenses/.
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*/
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// Telephone Jukebox
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//
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// Three types of output may be used, by configuring the code below.
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//
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// 1: Digital I2S - Normally used with the audio shield:
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// http://www.pjrc.com/store/teensy3_audio.html
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//
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// 2: Digital S/PDIF - Connect pin 22 to a S/PDIF transmitter
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// https://www.oshpark.com/shared_projects/KcDBKHta
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//
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// 3: Analog DAC - Connect the DAC pin to an amplified speaker
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// http://www.pjrc.com/teensy/gui/?info=AudioOutputAnalog
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//
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// To configure the output type, first uncomment one of the three
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// output objects. If not using the audio shield, comment out
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// the sgtl5000_1 lines in setup(), so it does not wait forever
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// trying to configure the SGTL5000 codec chip.
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//
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// The SD card may connect to different pins, depending on the
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// hardware you are using. Uncomment or configure the SD card
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// pins to match your hardware.
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//
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// Two pins can be used (one for hang up detection and one for counting), but it also works well with only one pin for both functions.
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#include <Audio.h>
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#include <Wire.h>
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#include <SPI.h>
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#include <SD.h>
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#include <SerialFlash.h>
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//#define PIN_PULSE 4
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#define PIN_STOP 2
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#define PULSE_DELAY 100
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unsigned long pulses_end = 0;
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unsigned int pulses = 0;
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bool pulse = false;
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AudioMixer4 mix2;
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AudioMixer4 mix1;
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AudioSynthWaveform waveform1;
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AudioPlaySdWav wav1;
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// Use one of these 3 output types: Digital I2S, Digital S/PDIF, or Analog DAC
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AudioOutputI2S phone1;
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//AudioOutputSPDIF phone1;
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//AudioOutputAnalog phone1;
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//On Teensy LC, use this for the Teensy Audio Shield:
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//AudioOutputI2Sslave phone1;
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AudioConnection c1(waveform1, 0, mix1, 0);
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AudioConnection c2(waveform1, 0, mix2, 0);
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AudioConnection c3(wav1, 0, mix1, 1);
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AudioConnection c4(wav1, 1, mix2, 1);
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AudioConnection c5(mix1, 0, phone1, 0);
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AudioConnection c6(mix2, 0, phone1, 1);
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AudioControlSGTL5000 sgtl5000_1;
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// Use these with the Teensy Audio Shield
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#define SDCARD_CS_PIN 10
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#define SDCARD_MOSI_PIN 7
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#define SDCARD_SCK_PIN 14
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// Use these with the Teensy 3.5 & 3.6 SD card
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//#define SDCARD_CS_PIN BUILTIN_SDCARD
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//#define SDCARD_MOSI_PIN 11 // not actually used
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//#define SDCARD_SCK_PIN 13 // not actually used
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// Use these for the SD+Wiz820 or other adaptors
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//#define SDCARD_CS_PIN 4
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//#define SDCARD_MOSI_PIN 11
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//#define SDCARD_SCK_PIN 13
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void setup() {
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pinMode(PIN_STOP, INPUT_PULLUP);
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//pinMode(PIN_PULSE, INPUT_PULLUP);
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AudioMemory(8);
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// Comment these out if not using the audio adaptor board.
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// This may wait forever if the SDA & SCL pins lack
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// pullup resistors
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sgtl5000_1.enable();
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sgtl5000_1.volume(0.5);
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waveform1.begin(WAVEFORM_SINE);
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waveform1.frequency(440);
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SPI.setMOSI(SDCARD_MOSI_PIN);
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SPI.setSCK(SDCARD_SCK_PIN);
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if(!SD.begin(SDCARD_CS_PIN)) {
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// Error: Cannot read SD card
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while(true) {
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if(!digitalRead(PIN_STOP)) {
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waveform1.amplitude(0.5);
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delay(250);
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waveform1.amplitude(0.0);
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delay(1750);
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}
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}
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}
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}
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void play_track(unsigned int track) {
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char filename[16];
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sprintf(filename, "%d.WAV", track);
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wav1.play(filename);
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}
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void loop() {
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/*if(digitalRead(PIN_STOP)) {
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waveform1.amplitude(0.0);
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if(wav1.isPlaying()) {
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wav1.stop();
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}
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} else {
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if(wav1.isPlaying()) {
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waveform1.amplitude(0.0);
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} else {
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waveform1.amplitude(0.5);
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}
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}
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if(digitalRead(PIN_PULSE)) {
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if(!pulse) {
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pulses ++;
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pulse = true;
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}
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}
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else if(pulse) {
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pulse = false;
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pulses_end = millis() + PULSE_DELAY;
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}
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else if(pulses) {
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if(millis() >= pulses_end) {
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if(!digitalRead(PIN_STOP))
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play_track(pulses);
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pulses = 0;
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}
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}*/
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// If phone is hang up
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if(digitalRead(PIN_STOP)) {
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// Stop tone and music
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waveform1.amplitude(0.0);
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if(wav1.isPlaying()) {
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wav1.stop();
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}
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if(!pulse) {
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pulse = true;
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pulses ++;
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pulses_end = millis() + PULSE_DELAY;
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}
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else if(millis() > pulses_end) {
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pulses = 0;
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}
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} else {
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if(wav1.isPlaying()) {
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// Stop tone
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waveform1.amplitude(0.0);
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} else {
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// Start tone
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waveform1.amplitude(0.5);
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}
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if(pulse) {
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pulse = false;
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pulses_end = millis() + PULSE_DELAY;
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} else if(pulses && millis() > pulses_end) {
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play_track(pulses % 10);
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pulses = 0;
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}
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}
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delay(10);
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}
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