MicroSD card breakout board & Arduino Pro Mini 3.3V 8 MHz

[buton]

i had problems reading the breakout board from the Arduino pro mini...

how ever it works with an arduino UNO..

is the breakout board compatible with the MINI?

[adafruit_support_bill]

It is compatible with 3.3v logic. We have not tested it specifically with the Pro Mini.

[buton]

Maybe it could be a timing issue because of the 8 mhz clock?

[adafruit_support_bill]

I have heard of issues with accessing SD cards on 8MHz variants. We don't carry any of them, so I don't have any firsthand experience with it.

[buton]

if i power the breakout module with external 5 volt.. the arduino pro mini will read and recognize the SD card...

[adafruit_support_bill]

Yes. The on-board 3.3v regulator needs >3.3v to properly regulate.

[buton]

i got it to work...

Thanks