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#2637 Compatible Shields and Accessories
Posted by
on 23 September 2010 - 01:34 AM
The SparkFun MP3 Shield is compatible.
http://www.sparkfun....roducts_id=9736
When combined with the Adafruit Data Logger SD Shield:
http://www.adafruit....products_id=243
And when passing small byte arrays (remember maximum RAM on Netduino is 60k and that the 4.1.1.0 firmware is needed for SD) from the SD card to the MP3 shield, it works rather well, if only a little jittery.
There's sample code for sending an MP3 file's byte arrays here:
https://www.ghielect...hp?topic=2738.0
It's not intended for the Netduino, but replacing the following pins does the trick:
BSYNC -> Pins.GPIO_PIN_D2
DREQ -> Pins.GPIO_PIN_D3
RESET -> [Any unused pin?]
CS -> Pins.GPIO_PIN_D9
NOTE: I didn't really know what pin to assign for "reset", but it doesn't seem to be necessary in order to work.
The volume is set to the value "1" in the code, but it really should be a hex value (see the spec sheet on SparkFun's product page).
