HI, I been making an animatronic and I wanted to make it talk. But I can't get an amplifier and I would like to see if I can use a cheap aux\bluetooh speaker for an amp.
The reason for this is because I want to fully animate my animatronic and I made it work in the talking part but I don't know if I can use scrap to do the rest of the audio.
continuing for this topic I found kind of related to this.
Try the DFPlayerMini for recording audio on SD card and playback to 3W speaker.
Okay that could work but I'm also having a problem hooking up the micro sd module to my Arduino mega 2560. Any fix?
Why not?
AUX cable is line level, an industry standard voltage level you will need to amplify to something that can drive whatever speaker(s) you are using.
What micro SD module? What files? What speaker, code and everything else?
Yes, Kinter and Fosi both make great options. I bought mine on Amazon. For the price, these can't be beat (especially the Fosi). When the project is old, reuse the amp for a bluetooth (some models) shop radio or something.
I don't work for either or anything, I'm just a very satisfied customer of both these companies.
I wanted to play an audio file using a micro SD module and wanted to send a signal to an actual assembled speaker via aux cable
Ok, but an aux cable is line level, approximately one-half to one volt. That won't drive a speaker. So you need an amplifier. Want decent quality that isn't crackly, muddy and that you can hear clearly in a room that isn't silent (or outside?).
If so, you want an amplifier that you don't make yourself unless you are confident you can make one.
So you could buy one of these
But in my experience making Hallowe'en animatronics, they just don't satisfy. Not clear enough at their full volume, which you will need to set it to if you want to hear it. Maybe if it's for a costume it would be good enough, but as I already said, an amp like this by Kinter
Is a great budget option for things like arcade machines, Hallowe'en props and the like. You supply your own 12V to drive it, use a 3.5mm to RCA stereo jack cable to connect to your MP3 board. It's fewer dollars than the Adafruit option and I can attest that it's much better.