Remark:
With this module, you can actually make an MP3 player without a controller (Particle):
Put 2 switches between module pins IO1 and IO2 and GND, you can control PREVIOUS and NEXT (short press) as well as VOL+ and VOL- (Long press)
But the value of above sketch is to see how you can control this module from a Particle.
The limits are those of your imagination!
You can put 99 folders on the SD card, with each 255 MP3 files…
What I still want to find out is how to simply play a particular song with one command.
=> Can we develop a function to select a specific folder and a specific song?
Can you help me find this?
Here is a page from the manual describing the key to this: HEXADECIMAL Calculations…
Nice challenge!
