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#include <FatReader.h>
#include <SdReader.h>
#include <avr/pgmspace.h>
#include "WaveUtil.h"
#include "WaveHC.h"
SdReader card; // This object holds the information for the card
FatVolume vol; // This holds the information for the partition on the card
FatReader root; // This holds the information for the filesystem on the card
FatReader f; // This holds the information for the file we're play
WaveHC wave; // This is the only wave (audio) object, since we will only play one at a time
//=============================================================================
int ledAnalogOne[] = {6, 9, 11}; //the three pins of the first analog LED 3 = redPin, 5 = greenPin, 6 = bluePin
//These pins must be PWM
//Defined Colors (different RGB (red, green, blue) values for colors
//(to add your own ie. fuscia experiment and then add to the list)
const byte RED[] = {255, 0, 0};
const byte ORANGE[] = {83, 4, 0};
const byte YELLOW[] = {255, 255, 0};
const byte GREEN[] = {0, 255, 0};
const byte BLUE[] = {0, 0, 255};
const byte INDIGO[] = {4, 0, 19};
const byte VIOLET[] = {23, 0, 22};
const byte CYAN[] = {0, 255, 255};
const byte MAGENTA[] = {255, 0, 255};
const byte WHITE[] = {255, 255, 255};
const byte PINK[] = {158, 4, 79};
const byte TEST[] = {255, 255, 255 };
const byte BLACK[] = {0, 0, 0};
int led1State = 0;
long int led1time = 10UL;
unsigned long count1 = 0;
boolean timeout(unsigned long *marker, unsigned long interval) {
if (millis() - *marker >= interval) {
*marker += interval; // move on ready for next interval
return true;
}
else return false;
}
//===================================================================================
// this handy function will return the number of bytes currently free in RAM, great for debugging!
int freeRam(void)
{
extern int __bss_end;
extern int *__brkval;
int free_memory;
if((int)__brkval == 0) {
free_memory = ((int)&free_memory) - ((int)&__bss_end);
}
else {
free_memory = ((int)&free_memory) - ((int)__brkval);
}
return free_memory;
}
void sdErrorCheck(void)
{
if (!card.errorCode()) return;
putstring("\n\rSD I/O error: ");
Serial.print(card.errorCode(), HEX);
putstring(", ");
Serial.println(card.errorData(), HEX);
while(1);
}
void setup() {
//================================================================
led1time = 1UL;
led1State = 0;
for(int i = 0; i < 3; i++){
pinMode(ledAnalogOne[i], OUTPUT); //Set the three LED pins as outputs
}
setColor(ledAnalogOne, BLACK);
//==================================================================
byte i;
// set up serial port
Serial.begin(9600);
putstring_nl("WaveHC with ");
putstring_nl("buttons");
putstring("Free RAM: "); // This can help with debugging, running out of RAM is bad
Serial.println(freeRam()); // if this is under 150 bytes it may spell trouble!
// Set the output pins for the DAC control. This pins are defined in the library
pinMode(2, OUTPUT);
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
pinMode(5, OUTPUT);
// pin13 LED
pinMode(13, OUTPUT);
// if (!card.init(true)) { //play with 4 MHz spi if 8MHz isn't working for you
if (!card.init()) { //play with 8 MHz spi (default faster!)
putstring_nl("Card init. failed!"); // Something went wrong, lets print out why
sdErrorCheck();
while(1); // then 'halt' - do nothing!
}
// enable optimize read - some cards may timeout. Disable if you're having problems
card.partialBlockRead(true);
// Now we will look for a FAT partition!
uint8_t part;
for (part = 0; part < 5; part++) { // we have up to 5 slots to look in
if (vol.init(card, part))
break; // we found one, lets bail
}
if (part == 5) { // if we ended up not finding one :(
putstring_nl("No valid FAT partition!");
sdErrorCheck(); // Something went wrong, lets print out why
while(1); // then 'halt' - do nothing!
}
// Lets tell the user about what we found
putstring("Using partition ");
Serial.print(part, DEC);
putstring(", type is FAT");
Serial.println(vol.fatType(),DEC); // FAT16 or FAT32?
// Try to open the root directory
if (!root.openRoot(vol)) {
putstring_nl("Can't open root dir!"); // Something went wrong,
while(1); // then 'halt' - do nothing!
}
// Whew! We got past the tough parts.
putstring_nl("Ready!");
}
void loop() {
byte i;
static byte playing =-1;
if (playing != 0) {
playing = 0;
playfile("1.WAV");
}
if (timeout(&count1, led1time )) {
switch (led1State) {
case 0:
{ // begin the sequence
led1State = 1; // next step
led1time = 2000UL; // for half a second
fadeToColor(ledAnalogOne, RED, ORANGE, 5); // switch it on
break;
}
case 1:
{
led1State = 2; // next step
led1time = 2000UL; // for however
fadeToColor(ledAnalogOne, YELLOW, GREEN, 5); // switch it off
break;
}
case 2:
{
led1State = 3;
led1time = 2000UL;
fadeToColor(ledAnalogOne, BLUE, INDIGO, 5); // switch it on
break;
}
case 3:
{
led1State = 4;
led1time = 2000UL;
fadeToColor(ledAnalogOne, VIOLET, CYAN, 5); // switch it off
break;
}
case 4:
{
led1State = 5;
led1time = 2000UL;
fadeToColor(ledAnalogOne, MAGENTA, WHITE, 5);
break;
}
case 5:
{
led1State = 0;
led1time = 2000UL;
fadeToColor(ledAnalogOne, PINK, BLACK, 3);
break;
}
}}}
}
//=================================================================================
void setColor(int* led, byte* color){
for(int i = 0; i < 3; i++){ //iterate through each of the three pins (red green blue)
analogWrite(led[i], 255 - color[i]); //set the analog output value of each pin to the input value (ie led[0] (red pin) to 255- color[0] (red input color)
//we use 255 - the value because our RGB LED is common anode, this means a color is full on when we output analogWrite(pin, 0)
//and off when we output analogWrite(pin, 255).
}
}
/* A version of setColor that takes a predefined color (neccesary to allow const int pre-defined colors */
void setColor(int* led, const byte* color){
byte tempByte[] = {color[0], color[1], color[2]};
setColor(led, tempByte);
}
/* Fades the LED from a start color to an end color at fadeSpeed
led - (int array of three values defining the LEDs pins (led[0] = redPin, led[1] = greenPin, led[2] = bluePin))
startCcolor - (byte array of three values defing the start RGB color (startColor[0] = start Red value, startColor[1] = start Green value, startColor[2] = start Red value
endCcolor - (byte array of three values defing the finished RGB color (endColor[0] = end Red value, endColor[1] = end Green value, endColor[2] = end Red value
fadeSpeed - this is the delay in milliseconds between steps, defines the speed of the fade
*/
void fadeToColor(int* led, byte* startColor, byte* endColor, int fadeSpeed){
int changeRed = endColor[0] - startColor[0]; //the difference in the two colors for the red channel
int changeGreen = endColor[1] - startColor[1]; //the difference in the two colors for the green channel
int changeBlue = endColor[2] - startColor[2]; //the difference in the two colors for the blue channel
int steps = max(abs(changeRed),max(abs(changeGreen), abs(changeBlue))); //make the number of change steps the maximum channel change
for(int i = 0 ; i < steps; i++){ //iterate for the channel with the maximum change
byte newRed = startColor[0] + (i * changeRed / steps); //the newRed intensity dependant on the start intensity and the change determined above
byte newGreen = startColor[1] + (i * changeGreen / steps); //the newGreen intensity
byte newBlue = startColor[2] + (i * changeBlue / steps); //the newBlue intensity
byte newColor[] = {newRed, newGreen, newBlue}; //Define an RGB color array for the new color
setColor(led, newColor); //Set the LED to the calculated value
delay(fadeSpeed); //Delay fadeSpeed milliseconds before going on to the next color
}
setColor(led, endColor); //The LED should be at the endColor but set to endColor to avoid rounding errors
}
/* A version of fadeToColor that takes predefined colors (neccesary to allow const int pre-defined colors */
void fadeToColor(int* led, const byte* startColor, const byte* endColor, int fadeSpeed){
byte tempByte1[] = {startColor[0], startColor[1], startColor[2]};
byte tempByte2[] = {endColor[0], endColor[1], endColor[2]};
fadeToColor(led, tempByte1, tempByte2, fadeSpeed);
}
//==========================================================================================
// Plays a full file from beginning to end with no pause.
void playcomplete(char *name) {
// call our helper to find and play this name
playfile(name);
while (wave.isplaying) {
// do nothing while its playing
}
// now its done playing
}
void playfile(char *name) {
// see if the wave object is currently doing something
if (wave.isplaying) {// already playing something, so stop it!
wave.stop(); // stop it
}
// look in the root directory and open the file
if (!f.open(root, name)) {
putstring("Couldn't open file "); Serial.print(name); return;
}
// OK read the file and turn it into a wave object
if (!wave.create(f)) {
putstring_nl("Not a valid WAV"); return;
}
// ok time to play! start playback
wave.play();
}
