I am looking for assistance using the Sparkfun MP3 Sound Shield. The first practice sketch that I tried to run is Sparkfun’s SFEMP3Shield example FilePlayer sketch.
When connected to my computer using the USB cable, the Serial Monitor displays two error messages:
- Free RAM = 917 Should be a base line of 1017, on ATmega328 when using INTx — I am using an Elegoo UNO R3 ATmega 328P
2, Can’t access SD card; SD errorCode 0X50,0X&F — tried 8GB card PNY brand and 16GB LaxTex brand
I am running Arduino IDE 1.8.13 on MacOS 10.14.6 (Mojave)
Douglas Margison
Make sure your cards are formatted FAT32, I find that the [formatting utility from the SD Card Association works very well for this.
If you’re still having trouble after formatting, send a photo of the top and bottom of the shield and a photo showing it connected to your arduino.](SD Memory Card Formatter for Windows/Mac | SD Association)
Useful exercise turning the shield over to the photograph. I had 3 pins that hadn’t been soldered. Powering things up after soldering all the pins, I now get to the menu on FilePlayer sketch and “d” displays the card’s directory.
Thanks for the assistance.
Douglas