Note that the IO pins are 3.4V only, need voltage leveling to use. But it has USB and UART IO which I'm pretty sure that USB is always 5V and I think (please help here!) that UART is the same 5V as our serial and software serial.
Voltage at Any Digital Input Min: -0.3 Max: IOVDD+0.3 1 V1 Must not exceed 3.6 V
The book compiles together a lot of information, which otherwise would be difficult to piece together from different sources, such as datasheets, application notes and C header files. For example, it tells how to use all of the 22 input and/or output pins of the VS1053. The book explains the structure of the VS1053 audio path and teaches how to write VSDSP interrupt handlers in both assembly and C language. All of the examples use VSIDE, with step by step guide on how to obtain, install and use the graphical development environment.
I also have 2 of those VS1003 modules. I've found several Arduino libraries and code for that module but I can not get it to play an mp3 from an SD card. I can get it to work in midi mode though with the library from Maniacbug. (Maybe we should start a new topic about the module.)
I would have to find a way to get 100 at 5 Euros each plus any shipping.
Arduino will run 8 MHz on 3.6V won't it?
I think that a guy like you would also be interested in a book like this:http://www.vsdsp-forum.com/phpbb/viewtopic.php?f=11&t=36
Quote from: GoForSmoke on May 23, 2013, 03:26 amI would have to find a way to get 100 at 5 Euros each plus any shipping.What is the minimum number you want to deal with per person? Hypothetically, would you be willing to repackage and ship me one?
At this point I am just testing waters.
Quote from: GoForSmoke on May 24, 2013, 05:58 pmAt this point I am just testing waters. I looked at the module and I'm a bit puzzled. If I understand it correctly this module can play 20 minutes of audio from internal flash That would be more than enough for most of my projects to give back audio feedback.But this module has so many pins ? How many control pins from the Arduino would I need if I wanted to play <=255 files at arduino command?What would I need to get the files in the flash?If it would be less than 5 pins: I'm in for at least 20 of those at 5 euro each plus transport. Best regardsJantjeps As the pins are not 5 volt tolerant some cheap bulk logic translators would make it a service deal XD