Let’s start with the basics of the project. I’m making a talking sword prop. The issue is the sword’s voice is very baritone so small speakers don’t replicate or throw the sound well. So I decided to have the sword (which has glyphs that illuminate/flash to the voice) send the audio to a higher quality (and not unsubstantial weight) speaker hidden on the cosplayer’s body.
What I want to do is have the audio files contained on an SD card inside the sword and output to something like a bc127, intercepting the audio levels with the analog meter to control the glyph LEDs (probably NeoPixels for the colors I need). But I’m having trouble finding a bluetooth module for Arduino designed to work as an audio source (mostly I find tutorials on how to do the media controls). Does anyone have any information on how I can do this? Because of the motions the cosplayer will be doing, a wired connection is not an option.