mirror of https://github.com/nealey/proton
5v version before synchrotron improvements
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021c9ffb26
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371
ProtonPack.ino
371
ProtonPack.ino
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@ -1,142 +1,189 @@
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// Proton Pack with NeoPixels
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// Boy howdy do these make everything easy
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#include <SPI.h>
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#include <Wire.h>
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#include "Adafruit_LEDBackpack.h"
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#include "Adafruit_GFX.h"
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#include <SD.h>
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#include <Adafruit_NeoPixel.h>
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#include <Adafruit_VS1053.h>
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#include <Adafruit_LEDBackpack.h>
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#include <Adafruit_GFX.h>
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#define LTCH 8
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#define RED 9
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#define GREEN 10
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#define BLUE 11
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#define DEBUG 13
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#define TRIGGER 4
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#define DEBUG 12
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// Music Player object
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#define SHIELD_RESET -1 // VS1053 reset pin (unused!)
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#define SHIELD_CS 7 // VS1053 chip select pin (output)
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#define SHIELD_DCS 6 // VS1053 Data/command select pin (output)
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#define CARDCS 4 // Card chip select
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#define DREQ 1 // VS1053 Data request (an interrupt pin)
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Adafruit_VS1053_FilePlayer musicPlayer = Adafruit_VS1053_FilePlayer(SHIELD_RESET, SHIELD_CS, SHIELD_DCS, DREQ, CARDCS);
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// NeoPixel: so cool
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#define SYNCHROTRON_PIN 5
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#define SYNCHROTRON_PIXELS 24 // I'm using the middle-sized NeoPixel ring
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Adafruit_NeoPixel synchrotron = Adafruit_NeoPixel(SYNCHROTRON_PIXELS, SYNCHROTRON_PIN, NEO_GRB | NEO_KHZ800);
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// 7-segment displays
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Adafruit_7segment disp1 = Adafruit_7segment();
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// Inputs
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#define TRIGGER 8
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// Nominal brightness
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#define brightness 64
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const byte powerColor[3] = {0xff, 0, 0};
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const byte dispBright = 10;
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unsigned long jiffies = 0;
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Adafruit_7segment disp1;
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void rgbPWM(byte r, byte g, byte b) {
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analogWrite(RED, 0xff - r);
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analogWrite(GREEN, 0xff - g);
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analogWrite(BLUE, 0xff - b);
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// XXX: do this
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}
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void rgb(byte r, byte g, byte b) {
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SPI.transfer(b);
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SPI.transfer(g);
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SPI.transfer(r);
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digitalWrite(LTCH, HIGH);
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digitalWrite(LTCH, LOW);
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for (int i = 0; i < SYNCHROTRON_PIXELS; i += 1) {
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synchrotron.setPixelColor(i, synchrotron.Color(r, g, b));
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}
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synchrotron.show();
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}
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void setup() {
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randomSeed(analogRead(12));
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SPI.begin();
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SPI.setDataMode(SPI_MODE0);
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SPI.setClockDivider(SPI_CLOCK_DIV2);
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SPI.setBitOrder(LSBFIRST);
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disp1 = Adafruit_7segment();
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disp1.begin(0x70);
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pinMode(LTCH, OUTPUT);
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pinMode(RED, OUTPUT);
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pinMode(GREEN, OUTPUT);
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pinMode(BLUE, OUTPUT);
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pinMode(DEBUG, OUTPUT);
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// synchrotron
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synchrotron.begin();
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synchrotron.show(); // Turn everything off
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// inputs
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pinMode(TRIGGER, INPUT_PULLUP);
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// music player, this sets up SPI for us
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SD.begin(CARDCS);
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musicPlayer.begin();
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musicPlayer.setVolume(20, 20); // lower = louder
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// We don't set useInterrupt, since we do our own polling for smoother operations
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// 7-segment displays.
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// These also use SPI, in i2c mode.
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// Since the music player has a CS line,
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// and we're unlikely to send the right i2c command to the 7-segment to wake it up,
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// it's okay to use the same SPI bus for both.
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disp1.begin(0x70);
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}
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// Cycle through colors, one spoke at a time.
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// Since we can only control brightness by color component for all spokes,
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// we can't do a fancier trick per-spoke.
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// But this one isn't that bad, really.
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bool doStartup() {
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static int count = 0;
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static byte cur[3] = {0, 0, 0};
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// Run this every 12 jiffies
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if (jiffies % 6 != 0) {
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return false;
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// Synchrotron needs to "spin up"
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// We start slow, with red, then work our way through the rainbow to blue
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bool charge() {
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static uint32_t count = 0;
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static int every = 9;
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static int reps = 0;
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uint32_t color_count;
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byte r, g, b;
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static int whichout = 0;
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// Play startup sound at the start
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if (count == 0) {
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musicPlayer.startPlayingFile("track001.mp3");
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}
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int weight = 0;
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int pos = count % 8;
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int color = 6 - (count / 8);
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// Make the animation play out a little more slowly,
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// while still allowing a nice fast rotation
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color_count = count / 4;
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// Give the illusion of something spinning up
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if (every == 1) {
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whichout = (whichout + 1) % SYNCHROTRON_PIXELS;
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} else if (count % every == 0) {
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whichout = (whichout + 1) % SYNCHROTRON_PIXELS;
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reps += 1;
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if (reps == 20 - every) {
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every -= 1;
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reps = 0;
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}
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}
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// Start at blue, go through hue to red
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switch (color_count / brightness) {
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case 0:
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r = color_count % brightness;
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g = 0;
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b = 0;
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break;
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case 1:
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r = brightness - (color_count % brightness) - 1;
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g = color_count % brightness;
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b = 0;
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break;
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case 2:
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r = 0;
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g = brightness - (color_count % brightness) - 1;
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b = color_count % brightness;
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break;
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default:
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rgb(brightness, 0, 0);
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return true;
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}
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// Set 'em up pixels
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for (int i = 0; i < SYNCHROTRON_PIXELS; i += 1) {
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if (whichout == i) {
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synchrotron.setPixelColor(i, 0);
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} else if ((whichout == (i+1) % SYNCHROTRON_PIXELS) || ((whichout+1) % SYNCHROTRON_PIXELS == i)) {
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synchrotron.setPixelColor(i, synchrotron.Color(r/4, g/4, b/4));
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} else {
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synchrotron.setPixelColor(i, synchrotron.Color(r, g, b));
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}
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}
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synchrotron.show();
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disp1.clear();
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disp1.printNumber(0xb00, HEX);
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disp1.setBrightness(dispBright);
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disp1.writeDisplay();
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count += 1;
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for (int i = 0; i < 3; i += 1) {
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int bit = (color & (1 << i))?1:0;
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weight += bit;
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// Shift the current color in from the LSB to the MSB
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cur[i] = (cur[i] << 1) | bit;
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}
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rgb(cur[0], cur[1], cur[2]);
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rgbPWM(32 * weight, 32 * weight, 32 * weight);
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for (int i = 0; i < 5; i += 1) {
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disp1.writeDigitRaw(i, random(256));
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}
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disp1.setBrightness(random(16));
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disp1.writeDisplay();
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if ((color == 1) && (pos == 7)) {
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rgb(powerColor[0], powerColor[1], powerColor[2]);
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disp1.clear();
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disp1.printNumber(0xb00, HEX);
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disp1.setBrightness(dispBright);
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disp1.writeDisplay();
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return true;
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}
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return false;
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}
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// Pulse to an extreme, then back
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bool pulse(byte initial, int pct) {
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static int prev = 0;
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static int state = 0;
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static int val = 0;
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int cur = (pct << 8) | initial;
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int newval = initial;
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// Reset if called with new values
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if (prev != cur) {
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state = 0;
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prev = cur;
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// Do a sort of mirrored KITT effect
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bool kitt() {
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static int count = 0;
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int out = count % (SYNCHROTRON_PIXELS/2);
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if (jiffies % 12 != 0) {
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return false;
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}
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switch (state) {
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case 0:
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state = 1;
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val = initial;
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break;
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case 1:
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val = (val * pct) / 100;
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if ((val <= 1) || (val >= 255)) {
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state = 2;
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for (int i = 0; i < SYNCHROTRON_PIXELS; i += 1) {
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int pixnum = (SYNCHROTRON_PIXELS/2) - abs(i - (SYNCHROTRON_PIXELS / 2));
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int intensity;
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if (count < SYNCHROTRON_PIXELS/2) {
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intensity = 100;
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if (pixnum == out) {
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intensity = 50;
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} else if (pixnum < out) {
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intensity = 10;
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}
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} else {
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intensity = 10;
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if (pixnum == out) {
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intensity = 50;
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} else if (pixnum < out) {
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intensity = 100;
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}
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}
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break;
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case 2:
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// discrete exponentiation, woo woo
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while ((newval * pct) / 100 != val) {
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newval = (newval * pct) / 100;
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}
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val = newval;
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if (val == initial) {
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state = 3;
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}
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break;
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case 3:
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state = 0;
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val = 0;
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synchrotron.setPixelColor(i, synchrotron.Color(brightness * intensity / 100, 0, 0));
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}
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synchrotron.show();
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count += 1;
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if (count > SYNCHROTRON_PIXELS) {
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rgb(brightness, 0, 0);
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count = 0;
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return true;
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}
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newval = min(val, 255);
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rgbPWM(newval, newval, newval);
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return false;
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}
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@ -144,17 +191,16 @@ bool glitch(int r, int g, int b) {
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static int state = 0;
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int i;
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if (jiffies % 5 != 0) {
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if (jiffies % 10 != 0) {
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return false;
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}
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switch (state) {
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case 0:
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// pick a random bit and clear it
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i = random(8);
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r &= ~(1 << i);
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g &= ~(1 << i);
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b &= ~(1 << i);
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// glitch to a random color
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r = random(brightness / 6);
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g = random(brightness / 6);
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b = random(brightness / 6);
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rgb(r, g, b);
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state = 1;
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break;
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@ -169,22 +215,26 @@ bool glitch(int r, int g, int b) {
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}
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void fire() {
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rgb(0, 0xff, 0xff);
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pulse(32, 160);
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rgb(0, brightness, brightness);
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}
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void fireDone() {
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rgb(powerColor[0], powerColor[1], powerColor[2]);
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rgbPWM(64, 64, 64);
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rgb(brightness, 0, 0);
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}
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void flashDebug() {
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if (jiffies % 50 == 0) {
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int val = digitalRead(DEBUG);
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digitalWrite(DEBUG, (val==HIGH)?LOW:HIGH);
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}
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}
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int doPowered() {
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void tick() {
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static int doing = 0;
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static float val1 = 584.2;
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static bool firing = false;
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bool trigger;
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trigger = (digitalRead(TRIGGER) == LOW);
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if (trigger) {
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@ -194,26 +244,24 @@ int doPowered() {
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switch (doing) {
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case 0: // doing nothing
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if (jiffies % 200 == 0) {
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doing = 1; // pulse
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if (jiffies % 300 == 0) {
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doing = 1; // KITT
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} else if (random(350) == 0) {
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doing = 2; // surge
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} else if (random(200) == 0) {
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} else if (random(400) == 0) {
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doing = 3; // glitch
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}
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break;
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case 1:
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if (pulse(64, 80)) {
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if (kitt()) {
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doing = 0;
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}
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break;
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case 2:
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if (pulse(64, 120)) {
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doing = 0;
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}
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doing = 0;
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break;
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case 3:
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if (glitch(powerColor[0], powerColor[1], powerColor[2])) {
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if (glitch(brightness, 0, 0)) {
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doing = 0;
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}
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break;
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@ -248,38 +296,51 @@ int doPowered() {
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disp1.print(someNumber);
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disp1.writeDisplay();
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}
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return 1;
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}
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void flashDebug() {
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if (jiffies % 50 == 0) {
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int val = digitalRead(DEBUG);
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digitalWrite(DEBUG, (val==HIGH)?LOW:HIGH);
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}
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flashDebug();
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}
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void loop() {
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static int state = 0;
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// 6 seems to be about what my overly-critical brain needs to buffer out
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// any music player delays so that they're unnoticeable
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unsigned long new_jiffies = millis() / 6;
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// state machine
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// The delay is *outside* the state machine, you'll notice.
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// So don't call sleep in your state function.
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switch (state) {
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case 0:
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if (doStartup()) {
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state = 1;
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}
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break;
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case 1:
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state = doPowered();
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break;
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if (new_jiffies > jiffies) {
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jiffies = new_jiffies;
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tick();
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}
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flashDebug();
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delay(12);
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jiffies += 1;
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/* Cleverness ensues
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*
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* The Adafruit library is written to let you go off and do whatever you need,
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* hooking into an interrupt to sort of act like a multitasking operating system,
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* interrupting your program periodically.
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*
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* That's smart, since it makes it easy to use,
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* but we want this to be responsive, and can't handle something barging in and taking up lots of time:
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* it makes things look really uneven as our display code pauses to fill the buffer.
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* Fortunately, we don't have to fill the entire buffer at once, we can trickle data in.
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* That's what this does.
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*
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* Since the entire program is polling, without ever calling delay,
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* and hopefully doing what needs to be done quickly,
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* we check to see if the music chip wants more data.
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* If it does, we give it one chunk, and only one chunk,
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* rather than filling its buffer back up completely.
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*
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* There is still some weirdness with this loop,
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* possibly because the SPI routines are masking interrupts used to increment millis.
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* But it's remarkably more fluid than the other way.
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*/
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if (musicPlayer.playingMusic && musicPlayer.readyForData()) {
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int bytesread = musicPlayer.currentTrack.read(musicPlayer.mp3buffer, VS1053_DATABUFFERLEN);
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if (bytesread == 0) {
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musicPlayer.playingMusic = false;
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musicPlayer.currentTrack.close();
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} else {
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musicPlayer.playData(musicPlayer.mp3buffer, bytesread);
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}
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}
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}
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