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Now with classes, debugging music+lights=gaps

This commit is contained in:
Neale Pickett 2016-09-25 21:51:15 -06:00
parent e87a3f66b4
commit c3f635e1f9
5 changed files with 207 additions and 305 deletions
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72
MusicPlayer.cpp Normal file
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#include <Arduino.h>
#include <SPI.h>
#include <Adafruit_VS1053.h>
#include <SD.h>
#include "MusicPlayer.h"
MusicPlayer::MusicPlayer(int8_t cs, int8_t dcs, int8_t dreq, int8_t cardcs)
{
musicPlayer = new Adafruit_VS1053_FilePlayer(cs, dcs, dreq, cardcs);
musicPlayer->begin();
musicPlayer->setVolume(20, 20); // lower = louder
musicPlayer->sineTest(0x44, 500);
SD.begin(cardcs);
}
void
MusicPlayer::setVolume(uint8_t left, uint8_t right)
{
musicPlayer->setVolume(left, right);
}
boolean
MusicPlayer::startPlayingFile(const char *trackname)
{
return musicPlayer->startPlayingFile(trackname);
}
void
MusicPlayer::stopPlaying()
{
musicPlayer->stopPlaying();
}
void
MusicPlayer::poll(unsigned long jiffies)
{
/* Cleverness ensues
*
* The Adafruit library is written to let you go off and do whatever you need,
* hooking into an interrupt to sort of act like a multitasking operating system,
* interrupting your program periodically.
*
* That's smart, since it makes it easy to use,
* but we want this to be responsive, and can't handle something barging in and taking up lots of time:
* it makes things look really uneven as our display code pauses to fill the buffer.
* Fortunately, we don't have to fill the entire buffer at once, we can trickle data in.
* That's what this does.
*
* Since the entire program is polling, without ever calling delay,
* and hopefully doing what needs to be done quickly,
* we check to see if the music chip wants more data.
* If it does, we give it one chunk, and only one chunk,
* rather than filling its buffer back up completely.
*
* There is still some weirdness with this loop,
* possibly because the SPI routines are masking interrupts used to increment millis.
* But it's remarkably more fluid than the other way.
*/
if (musicPlayer->playingMusic && musicPlayer->readyForData()) {
int bytesread = musicPlayer->currentTrack.read(musicPlayer->mp3buffer, VS1053_DATABUFFERLEN);
if (bytesread == 0) {
musicPlayer->playingMusic = false;
musicPlayer->currentTrack.close();
} else {
musicPlayer->playData(musicPlayer->mp3buffer, bytesread);
}
}
}

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MusicPlayer.h Normal file
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#pragma once
#include <Arduino.h>
#include <SD.h>
#include <Adafruit_VS1053.h>
class MusicPlayer {
Adafruit_VS1053_FilePlayer *musicPlayer;
public:
MusicPlayer(int8_t cs, int8_t dcs, int8_t dreq, int8_t cardcs);
boolean startPlayingFile(const char *trackname);
void setVolume(uint8_t left, uint8_t right);
void stopPlaying();
void poll(unsigned long jiffies); // Call this once per loop()
};

344
ProtonPack.ino
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#include <SPI.h>
#include <Wire.h>
#include <SD.h>
#include <Adafruit_NeoPixel.h>
#include <Adafruit_VS1053.h>
#include <Adafruit_LEDBackpack.h>
#include <Adafruit_GFX.h>
#include "MusicPlayer.h"
#include "Synchrotron.h"
#define DEBUG 12
// Music Player
#define MUSIC_CS 7
#define MUSIC_DATA 6
#define MUSIC_CARDCS 4
#define MUSIC_REQ 3
MusicPlayer *music;
// Music Player object
#define SHIELD_RESET -1 // VS1053 reset pin (unused!)
#define SHIELD_CS 7 // VS1053 chip select pin (output)
#define SHIELD_DCS 6 // VS1053 Data/command select pin (output)
#define CARDCS 4 // Card chip select
#define DREQ 1 // VS1053 Data request (an interrupt pin)
Adafruit_VS1053_FilePlayer musicPlayer = Adafruit_VS1053_FilePlayer(SHIELD_RESET, SHIELD_CS, SHIELD_DCS, DREQ, CARDCS);
// Synchrotron
#define SYNC1_NPIXELS 24
#define SYNC1_DATA 5
Synchrotron *sync1;
// NeoPixel: so cool
#define SYNCHROTRON_PIN 5
#define SYNCHROTRON_PIXELS 24 // I'm using the middle-sized NeoPixel ring
Adafruit_NeoPixel synchrotron = Adafruit_NeoPixel(SYNCHROTRON_PIXELS, SYNCHROTRON_PIN, NEO_GRB | NEO_KHZ800);
// 7-segment displays
Adafruit_7segment disp1 = Adafruit_7segment();
// Debug LED
#define DEBUG 13
// Inputs
#define TRIGGER 8
#define TRIGGER 9
// Nominal brightness
#define brightness 64
const byte dispBright = 10;
// global time counter
unsigned long jiffies = 0;
void rgbPWM(byte r, byte g, byte b) {
// XXX: do this
}
void rgb(byte r, byte g, byte b) {
for (int i = 0; i < SYNCHROTRON_PIXELS; i += 1) {
synchrotron.setPixelColor(i, synchrotron.Color(r, g, b));
}
synchrotron.show();
}
void setup() {
randomSeed(analogRead(12));
// synchrotron
synchrotron.begin();
synchrotron.show(); // Turn everything off
// inputs
pinMode(TRIGGER, INPUT_PULLUP);
// outputs
pinMode(DEBUG, OUTPUT);
// music player, this sets up SPI for us
SD.begin(CARDCS);
musicPlayer.begin();
musicPlayer.setVolume(20, 20); // lower = louder
// We don't set useInterrupt, since we do our own polling for smoother operations
music = new MusicPlayer(MUSIC_CS, MUSIC_DATA, MUSIC_REQ, MUSIC_CARDCS);
// 7-segment displays.
// These also use SPI, in i2c mode.
// Since the music player has a CS line,
// and we're unlikely to send the right i2c command to the 7-segment to wake it up,
// it's okay to use the same SPI bus for both.
disp1.begin(0x70);
// synchrotron
sync1 = new Synchrotron(SYNC1_NPIXELS, SYNC1_DATA);
}
// Synchrotron needs to "spin up"
// We start slow, with red, then work our way through the rainbow to blue
bool charge() {
static uint32_t count = 0;
static int every = 9;
static int reps = 0;
uint32_t color_count;
byte r, g, b;
static int whichout = 0;
// Play startup sound at the start
if (count == 0) {
musicPlayer.startPlayingFile("track001.mp3");
}
// Make the animation play out a little more slowly,
// while still allowing a nice fast rotation
color_count = count / 4;
// Give the illusion of something spinning up
if (every == 1) {
whichout = (whichout + 1) % SYNCHROTRON_PIXELS;
} else if (count % every == 0) {
whichout = (whichout + 1) % SYNCHROTRON_PIXELS;
reps += 1;
if (reps == 20 - every) {
every -= 1;
reps = 0;
}
}
// Start at blue, go through hue to red
switch (color_count / brightness) {
case 0:
r = color_count % brightness;
g = 0;
b = 0;
break;
case 1:
r = brightness - (color_count % brightness) - 1;
g = color_count % brightness;
b = 0;
break;
case 2:
r = 0;
g = brightness - (color_count % brightness) - 1;
b = color_count % brightness;
break;
default:
rgb(brightness, 0, 0);
return true;
}
// Set 'em up pixels
for (int i = 0; i < SYNCHROTRON_PIXELS; i += 1) {
if (whichout == i) {
synchrotron.setPixelColor(i, 0);
} else if ((whichout == (i+1) % SYNCHROTRON_PIXELS) || ((whichout+1) % SYNCHROTRON_PIXELS == i)) {
synchrotron.setPixelColor(i, synchrotron.Color(r/4, g/4, b/4));
} else {
synchrotron.setPixelColor(i, synchrotron.Color(r, g, b));
}
}
synchrotron.show();
disp1.clear();
disp1.printNumber(0xb00, HEX);
disp1.setBrightness(dispBright);
disp1.writeDisplay();
count += 1;
return false;
}
// Do a sort of mirrored KITT effect
bool kitt() {
static int count = 0;
int out = count % (SYNCHROTRON_PIXELS/2);
if (jiffies % 12 != 0) {
return false;
}
for (int i = 0; i < SYNCHROTRON_PIXELS; i += 1) {
int pixnum = (SYNCHROTRON_PIXELS/2) - abs(i - (SYNCHROTRON_PIXELS / 2));
int intensity;
if (count < SYNCHROTRON_PIXELS/2) {
intensity = 100;
if (pixnum == out) {
intensity = 50;
} else if (pixnum < out) {
intensity = 10;
}
} else {
intensity = 10;
if (pixnum == out) {
intensity = 50;
} else if (pixnum < out) {
intensity = 100;
}
}
synchrotron.setPixelColor(i, synchrotron.Color(brightness * intensity / 100, 0, 0));
}
synchrotron.show();
count += 1;
if (count > SYNCHROTRON_PIXELS) {
rgb(brightness, 0, 0);
count = 0;
return true;
}
return false;
}
bool glitch(int r, int g, int b) {
static int state = 0;
int i;
if (jiffies % 10 != 0) {
return false;
}
switch (state) {
case 0:
// glitch to a random color
r = random(brightness / 6);
g = random(brightness / 6);
b = random(brightness / 6);
rgb(r, g, b);
state = 1;
break;
case 1:
rgb(r, g, b);
state = 0;
return true;
break;
}
return false;
}
void fire() {
rgb(0, brightness, brightness);
}
void fireDone() {
rgb(brightness, 0, 0);
}
void flashDebug() {
if (jiffies % 50 == 0) {
int val = digitalRead(DEBUG);
digitalWrite(DEBUG, (val==HIGH)?LOW:HIGH);
}
}
uint8_t val;
void tick() {
static int doing = 0;
static float val1 = 584.2;
static bool firing = false;
bool trigger;
trigger = (digitalRead(TRIGGER) == LOW);
if (trigger) {
firing = true;
doing = 100;
}
switch (doing) {
case 0: // doing nothing
if (jiffies % 300 == 0) {
doing = 1; // KITT
} else if (random(350) == 0) {
doing = 2; // surge
} else if (random(400) == 0) {
doing = 3; // glitch
}
break;
case 1:
if (kitt()) {
doing = 0;
}
break;
case 2:
doing = 0;
break;
case 3:
if (glitch(brightness, 0, 0)) {
doing = 0;
}
break;
case 100:
fire();
if (! trigger) {
doing = 101;
}
break;
case 101:
fireDone();
doing = 0;
break;
default:
doing = 0;
}
// screw around with the displays
if (random(20) == 0) {
val1 += (random(3) - 1) / 10.0;
disp1.print(val1);
disp1.setBrightness(dispBright);
disp1.writeDisplay();
} else if (random(150) == 0) {
disp1.setBrightness(random(16));
disp1.writeDisplay();
} else if (random(150) == 0) {
disp1.clear();
disp1.writeDisplay();
} else if (random(400) == 0) {
int someNumber = random(9999);
disp1.print(someNumber);
disp1.writeDisplay();
}
flashDebug();
val = (jiffies % 100) < 50;
digitalWrite(DEBUG, val);
}
void loop() {
static int state = 0;
// 6 seems to be about what my overly-critical brain needs to buffer out
// any music player delays so that they're unnoticeable
unsigned long new_jiffies = millis() / 6;
boolean trigger = ! digitalRead(TRIGGER);
if (new_jiffies > jiffies) {
jiffies = new_jiffies;
tick();
}
music->poll(jiffies);
/* Cleverness ensues
*
* The Adafruit library is written to let you go off and do whatever you need,
* hooking into an interrupt to sort of act like a multitasking operating system,
* interrupting your program periodically.
*
* That's smart, since it makes it easy to use,
* but we want this to be responsive, and can't handle something barging in and taking up lots of time:
* it makes things look really uneven as our display code pauses to fill the buffer.
* Fortunately, we don't have to fill the entire buffer at once, we can trickle data in.
* That's what this does.
*
* Since the entire program is polling, without ever calling delay,
* and hopefully doing what needs to be done quickly,
* we check to see if the music chip wants more data.
* If it does, we give it one chunk, and only one chunk,
* rather than filling its buffer back up completely.
*
* There is still some weirdness with this loop,
* possibly because the SPI routines are masking interrupts used to increment millis.
* But it's remarkably more fluid than the other way.
*/
if (musicPlayer.playingMusic && musicPlayer.readyForData()) {
int bytesread = musicPlayer.currentTrack.read(musicPlayer.mp3buffer, VS1053_DATABUFFERLEN);
if (bytesread == 0) {
musicPlayer.playingMusic = false;
musicPlayer.currentTrack.close();
} else {
musicPlayer.playData(musicPlayer.mp3buffer, bytesread);
if (state == 0) {
if (new_jiffies > jiffies) {
if (trigger) {
state = 1;
music->startPlayingFile("track001.mp3");
sync1->charge();
}
jiffies = new_jiffies;
sync1->tick(jiffies);
flashDebug();
}
}
}

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Synchrotron.cpp Normal file
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#include <Arduino.h>
#include <Adafruit_NeoPixel.h>
#include "Synchrotron.h"
#define brightness 255
Synchrotron::Synchrotron(uint16_t n, uint8_t p, neoPixelType t)
{
pxl = new Adafruit_NeoPixel(n, p, t);
npixels = n;
cur = 0;
pxl->begin();
pxl->show();
standby();
}
Synchrotron::standby() {
tickrate = 12;
ticks = 0;
r = brightness;
g = 0;
b = 0;
}
Synchrotron::charge() {
tickrate = 2;
ticks = 0;
r = brightness;
g = brightness / 8;
b = 0;
}
Synchrotron::fire() {
}
Synchrotron::discharge() {
}
Synchrotron::tick(unsigned long jiffies) {
float adj = (float)ticks / (float)tickrate;
byte raa = r * adj;
byte gaa = g * adj;
byte baa = b * adj;
byte ra = r - raa;
byte ga = g - gaa;
byte ba = b - baa;
pxl->clear();
pxl->setPixelColor((cur + 1) % npixels, pxl->Color(raa, gaa, baa));
for (int i = 0; i < 4; i += 1) {
int div = 1 << (2*i);
pxl->setPixelColor((cur + npixels - i) % npixels, pxl->Color(ra/div, ga/div, ba/div));
}
pxl->show();
ticks += 1;
if (ticks == tickrate) {
ticks = 0;
cur = (cur + 1) % npixels;
}
}

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Synchrotron.h Normal file
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#pragma once
#include <Arduino.h>
#include <Adafruit_NeoPixel.h>
class Synchrotron {
Adafruit_NeoPixel *pxl;
uint16_t npixels; // How many pixels there are
int cur; // Which pixel the synchrotron is on, currently
int tickrate; // How many millis between pixel position changes
int ticks; // How many ticks have elapsed since last position change
byte r, g, b; // Current color
public:
Synchrotron(uint16_t n, uint8_t p=6, neoPixelType t=NEO_GRB + NEO_KHZ800);
standby();
charge();
fire();
discharge();
tick(unsigned long jiffies); // Try to call this every jiffy
};