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

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

Post by 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?

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

Post by adafruit_support_bill »

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

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

Post by buton »

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

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

Post by 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.

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

Post by buton »

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

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

Post by adafruit_support_bill »

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

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

Post by buton »

i got it to work...

Thanks

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