#include <FastLED.h>
// FastLED included just for the nice timer for now...will add blinkenlights!

// I have the JR6001 connected to an Adafruit Circuit Playground Express
// CPx        JR. 6001
//  VOUT    -> VCC
//  GND     -> GND
//  A6 (RX) -> TX
//  A7 (TX) -> RX

void setup() {
 // initialize *both* serial ports:
 Serial.begin(9600);  // USB comms
 Serial1.begin(9600); // Pins A6 & A7 on the Circuit Playground Express
}

void loop() {
 EVERY_N_SECONDS(8) {
   Serial1.write("AF:1"); // Set low volume by writing JR via Serial1
   Serial.println("Volume set to 1"); // Print to the Arduino serial monitor via USB
   delay(500);
   Serial1.write("A7:00001"); // Play track 00001
   Serial.println("Play track 00001 sent...");
   delay(2000);
   Serial1.write("AF:22"); // Set higher volume
   Serial.println("Volume set to 22");
   delay(500);
   Serial1.write("A7:00005"); // Play track 00005
   Serial.println("Play track 00005 sent...");
 }
} // END LOOP

//JR6001 V2.1
//Play Mode Definition: Power-on defaults to single stop
//  Whole Circle (00): Play the whole track in sequence, and then play it in circle after playback.
//  Mono Loop (01): Always Loop the Current Track
//  Single Stop (02): Stop playing the current track once
//  Total Random (03): Random Play of Tracks in Characters
//  Catalog Loop (04): Play the tracks in the current folder in sequence, and play them in a loop after playing. The catalog does not contain subdirectories.
//  Random Directory (05): Play in the current directory randomly, the directory does not contain subdirectories
//  Catalog sequential playback (06): Play the tracks in the current folder in order, stop after playback, the directory does not contain subdirectories.
//  Sequential Play (07): Play the whole track in sequence and stop after play.
//
//  B7:xx Sets Play Mode

//  ###. Communication instruction. ###
//
//  1. Play(A2)
//  Directive: A2
//  Note: Any time this command is issued, the current track will be played from scratch.
//
//  2. Pause(A3)
//  Directive: A3
//
//  3. Stop(A4)
//  Directive: A4
//  Return :null
//
//  4. Next(A5)
//  Directive: A5
//
//  5. Last(A6)
//  Directive: A6
//
//  6. Designated tracks(A7)
//  Directive: A7:00001
//  E.g A7:00008 Specifies to play a file named 00008 in the current memory.
//  Number of tracks from 00001-99999
//
//  7. Specify Disk Character, Specify Path Play(A8)
//  FLASH Directive: :A8:02+Path
//  TF Directive: :A8:01+Path
//  U Directive: :A8:00+Path
//  The instructions require MP3 file names loosely, both in English and Chinese,
//  but only 8 bytes at most.
//  e.g1:To play the 00005.MP3 file in the FLASH root directory,A8:02/00002
//  *???
//  A8:02 A8 is Directive NO.,02 is a express FLASH,
/// 00002*??? Is the path format
//  e.g2:To play the apple.MP3 file recorded by MUSIC in FLASH,Directive:
//  A8:02/MUSIC*/APPLE*???
//  A8:02 A8 is Directive NO.,02 is a express FLASH,
//  /MUSIC*/APPLE*??? is Path format
//
//  8. End play(AE)
//  Directive:AE
//  Note: This instruction can terminate the current operation ahead of time, will
//  terminate the current play, if it is in the plug-in, etc., will end the plug-in a
//  head of time and return to the original state.
//
//  9. Volume Setting(AF):
//  Directive:AF:XX
//  For example:AF:20 Set the volume to level 20 [docs say volume level is from 0-30; defaults to 20 om power-on]
//
//  10. Volume plus(B0):
//  Directive:B0
//
//  11. Volume minus (B1):
//  Directive:B1
//
//  12. Setting cycle mode(B4):
//  Directive:B4:XX
//  For example:Set to Mono Stop : B4:01
//
//  13. Combination play(B7)
//  Composite playback can only play files in the ZH folder, and the file names in the folder need to be two digits.
//  Directive:B7:XXXX (Follow the file name in the ZH folder directly behind the colon)
//  For example:B7:01020504,Files named 01, 02, 05, 04 in ZH folder will be played in this order
//
//  14. End Combination Play(B8)