FILENAMEEXT
filesizeinbytes
Where "FILENAMEEXT" is the full 8.3 file name of each file, with no dot, if you have a file with shorter than 8 characters,
it will be padded with spaces.
The filesize is in bytes, and is padded with zeros as well
Volume up and down
You can adjust volume from 0 (silent) to 204 (loudest) in 2-increments. To increase the volume, send +\n (plus symbol
plus new line). to decrease volume send -\n (minus symbol plus new line) and it will reply with the new volume (5 ascii
characters, two of which are going to be zeros and then three digits of volume, plus a new line)
Play track by Number
Each track has a number with respect to when it was copied onto the SD card, starting with track #0, these are in the
order that the tracks are printed out when you send 'L' for list tracks.
The fastest way to play a track is by the track number, send #NN\n (# symbol, then the number of the track, and end
with a new line). E.g. to play the first track (track #0) send #0\n and for the 11th track, send #10\n
If the file wasnt found, it will reply with NoFile\n
If the file is found, the sound board will reply with playNNNNNFILENAMEEXT\n
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