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Topic: Don't know where to start! (Read 433 times) previous topic - next topic

Kyle Quamme

Hello, I would like to use an Arduino board and waveshield to replicate the function of a music box in a doll for my girlfriend. Someone at sometime turned the knob backwards and totally stripped out the main gear in the mechanical box, so I figured I would add a personal signature to it and go digital, haha.

Is this possible? Is there a simpler way? I have no coding/programming experience, so this is all green to me.

gnu_linux

Is this what you want to build?

http://ladyada.net/make/waveshield/

:)

Kyle Quamme

Yes, that is what I am talking about. Is that a good way to do this? Also, can I switch out the jog wheel for a momentary push button style that would play the playlist instead of adjusting the volume, or could I add a momentary push button to that board?

gnu_linux

You could probably write some code to get the potentiometer to select the audio file to play instead of controlling the volume

The audio shield and arduino is probably among the cheapest open hardware and software platforms that can do this, but remember it can only play uncompressed wav audio files

MP3 capabilities would require much more expensive hardware

An open do it yourself MP3 player would cost upwards of $120 if not more and would require much more advanced soldering skills

:)

gnu_linux

According to the documentation, the waveshield can have up to 6 buttons connected to the 6 analog inputs

:)

ladyada

http://www.ladyada.net/make/waveshield/examples.html

Kyle Quamme

#6
Oct 25, 2008, 06:20 am Last Edit: Oct 25, 2008, 06:21 am by kyle.quamme Reason: 1
Thanks for the info. This looks like a good way to go.

btw, I am not worried about having to play WAVs, I will only have one sound file in this stuffed bunny rabbit, so that shouldn't be a big problem.

What kinds of SD cards are compatible? Are the high capacity cards compatible? Not that I need the higher capacity, but it can be hard to find anything like a 128 or 256 in stores these days...maybe I need to look in different places, haha.

gnu_linux

"The wave shield uses SD/MMC cards. They are extraordinarily popular, sometimes even available in grocery stores! They are used in MP3 players, cameras, audio recorders, etc. You can use any card that can store 32 MB to 1.0 GB. A 1 gigabyte card can hold 380 minutes of uncompressed audio for the shield, and costs $5 "


Any card 2GB or less should work

SDHC cards are probably not going to work at all

:)

westfw

I like to buy "microsd" or "minisd" cards; they're smaller and can go in "other things" that use SD cards, and they come with (or can be used with) adapters to the larger SD formats.  eBay is a reasonable source of older (smaller) flash cards in assorted formats.  Especially in mid-sized lot.  For instance, I bought a lot of 20 64M microSD cards with adapters for $24 postpaid.  They've gone into phones, cameras, and assorted other stuff...

gnu_linux

You are also limited by FAT16 and 8.3 filenames so keep that in mind

:)

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