So my EGR class has been contacted by the local Natural History Museum to build exhibits for the new wing. Our exhibit my team has decided to build is a dinosaur foot print comparison platform. We are etching glass which will be lit by LEDs to give it that cool light effect. I have already written and tested the code for my 4 buttons to light the 4 different footprints we are making. My next step is to incorporate speakers so when the kids press the buttons the speaker will play that dinosaurs associated sound.roar file.
The bit of research i did shows i will need an SD card and the SD card to arduino converter. The sound files will need to be in .wav and there are some codes out there for if button a is pressed play sound file a. Will i need more than one Arduino UNO for this and what external power supplies should i consider… and as i am a second year engineering student we have not learned about playing audio files yet so this is new territory for me. When connecting speakers to power sources do they need any special resistors or can i connect them to my standard resistors in my circuit?
Thank you to anyone who takes time to answer any of my questions i do appreciate the help.