Assignment Eight

/***************************************************
DFPlayer - A Mini MP3 Player For Arduino
<https://www.dfrobot.com/index.php?route=product/product&product_id=1121>

***************************************************
This example shows the basic function of library for DFPlayer.

Created 2016-12-07
By [Angelo qiao](Angelo.qiao@dfrobot.com)

GNU Lesser General Public License.
See <http://www.gnu.org/licenses/> for details.
All above must be included in any redistribution
****************************************************/

/***********Notice and Trouble shooting***************
1.Connection and Diagram can be found here
<https://www.dfrobot.com/wiki/index.php/DFPlayer_Mini_SKU:DFR0299#Connection_Diagram>
2.This code is tested on Arduino Uno, Leonardo, Mega boards.
****************************************************/

#include <SoftwareSerial.h>
#include <DFRobotDFPlayerMini.h>

SoftwareSerial mySoftwareSerial(10, 11); // RX, TX
DFRobotDFPlayerMini myDFPlayer;
void printDetail(uint8_t type, int value);

//--------NEOPIXEL SETUP --------
#include <Adafruit_NeoPixel.h>
#ifdef __AVR__
#include <avr/power.h>
#endif
static const int PIN = 5;
static const int NUMPIXELS = 2;
Adafruit_NeoPixel pixels = Adafruit_NeoPixel(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);
//------------------------------

//------- TIMING --------
unsigned long lastSampleTime = 0;
unsigned long sampleInterval = 500; // in ms
//------------------------------

static const int bPinOne = 2;
static const int bPinTwo = 3;
int bCountOne = 0;
int bCountTwo = 0;
bool bStateOne = false;
bool bStateTwo = false;

int currentState = 0;

void setup() {
mySoftwareSerial.begin(9600);
Serial.begin(115200);

Serial.println();
Serial.println(F("DFRobot DFPlayer Mini Demo"));
Serial.println(F("Initializing DFPlayer ... (May take 3~5 seconds)"));

if (!myDFPlayer.begin(mySoftwareSerial)) { //Use softwareSerial to communicate with mp3.
Serial.println(F("Unable to begin:"));
Serial.println(F("1.Please recheck the connection!"));
Serial.println(F("2.Please insert the SD card!"));
while (true);
}
Serial.println(F("DFPlayer Mini online."));

myDFPlayer.volume(30); //Set volume value. From 0 to 30
myDFPlayer.play(1); //Play the first mp3

pinMode(bPinOne, INPUT_PULLUP);
pinMode(bPinTwo, INPUT_PULLUP);
attachInterrupt(digitalPinToInterrupt(bPinOne), bSwitchOne, CHANGE);
attachInterrupt(digitalPinToInterrupt(bPinTwo), bSwitchTwo, CHANGE);
pixels.begin();
pixels.show();

}

void loop(){

if(currentState == 3){
myDFPlayer.play(1);
}

if (currentState == 1){
myDFPlayer.pause();
rainbow(20);
} else if (currentState == 2){
pixelOff();
myDFPlayer.start();

}

if (myDFPlayer.available()) {
printDetail(myDFPlayer.readType(), myDFPlayer.read()); //Print the detail message from DFPlayer to handle different errors and states.
}
}

void bSwitchOne() {
unsigned long now = millis();

if (lastSampleTime + sampleInterval < now) {
lastSampleTime = now;
bCountOne++;
bStateOne = true;
Serial.print("button one: ");
Serial.println(bCountOne);

if (bCountOne % 2 == 1){
currentState = 1;
} else if (bCountOne % 2 == 0){
currentState = 2;
}

}

}

void bSwitchTwo() {
unsigned long now = millis();

if (lastSampleTime + sampleInterval < now) {
lastSampleTime = now;
bCountTwo++;
bStateTwo = true;
Serial.print("button two: ");
Serial.println(bCountTwo);

if (bCountTwo % 2 == 1){
currentState = 3;
} else if (bCountTwo % 2 == 0){
currentState = 4;
}
}

}

void rainbow(uint8_t wait) {
uint16_t i, j;

for (j = 0; j < 256; j++) {
for (i = 0; i < pixels.numPixels(); i++) {
pixels.setPixelColor(i, Wheel((i + j) & 255));
}
pixels.show();
delay(wait);
}
}

void pixelOff() {
for (int i = 0; i < pixels.numPixels(); i++) {
pixels.setPixelColor(i, (0, 0, 0));
}
pixels.show();
}

uint32_t Wheel(byte WheelPos) {
WheelPos = 255 - WheelPos;
if (WheelPos < 85) {
return pixels.Color(255 - WheelPos * 3, 0, WheelPos * 3);
}
if (WheelPos < 170) {
WheelPos -= 85;
return pixels.Color(0, WheelPos * 3, 255 - WheelPos * 3);
}
WheelPos -= 170;
return pixels.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
}

void printDetail(uint8_t type, int value) {
switch (type) {
case TimeOut:
Serial.println(F("Time Out!"));
break;
case WrongStack:
Serial.println(F("Stack Wrong!"));
break;
case DFPlayerCardInserted:
Serial.println(F("Card Inserted!"));
break;
case DFPlayerCardRemoved:
Serial.println(F("Card Removed!"));
break;
case DFPlayerCardOnline:
Serial.println(F("Card Online!"));
break;
case DFPlayerPlayFinished:
Serial.print(F("Number:"));
Serial.print(value);
Serial.println(F(" Play Finished!"));
break;
case DFPlayerError:
Serial.print(F("DFPlayerError:"));
switch (value) {
case Busy:
Serial.println(F("Card not found"));
break;
case Sleeping:
Serial.println(F("Sleeping"));
break;
case SerialWrongStack:
Serial.println(F("Get Wrong Stack"));
break;
case CheckSumNotMatch:
Serial.println(F("Check Sum Not Match"));
break;
case FileIndexOut:
Serial.println(F("File Index Out of Bound"));
break;
case FileMismatch:
Serial.println(F("Cannot Find File"));
break;
case Advertise:
Serial.println(F("In Advertise"));
break;
default:
break;
}
break;
default:
break;
}
}