WiPy with external MicroSD card module

[spacelggo]

Hi,

I am looking at a project combing the WiPy with the following MicroSD card module:
https://www.dfrobot.com/wiki/index.php/MicroSD_card_module_for_Arduino_(SKU:DFR0229)

I understand the WiPy has a native SDCard interface. The MicroSD card module however has an SPI interface.

Will I be able to connect to the MicroSD module using the native SDCard interface or will I need to use SPI?

[livius]

@spacelggo
I do not remember what was the cause of slowness you can try to find info on the forum.
I suppose that this was releated directly with SD driver not SPI itself.
Someone tested this i do not tested this myself. I use always direct connection and built in driver.

[spacelggo]

@livius

Thanks for the info.

Another question. You mentioned the current SPI driver is slow. I am hoping to use the WiPy to drive a persistence of vision(POV) effect from an APA102 LED string via SPI. This requires a very high refresh rate of the LEDs. Do you think the slowness will be an issue in this case?

[livius]

@spacelggo
Are you talking about top right image?
If yes - then answer is no - this is SPI device. You need simple sd card slot

or direct connect like this one ;-) but ignore labels and use from previous images

[spacelggo]

@livius

Ahhh ... so would this be correct?

[livius]

@spacelggo said in WiPy with external MicroSD card module:

[spacelggo]

Thanks Livius.

The MicroSD module only has the following pin-outs
MISO
SCK
SS chip Select
MOSI
GND
VCC

Are they able to be used for DAT0, SCLK and CMD?

[livius]

@spacelggo
You can use native by simple wiring.
you need only DAT0, CLK, CMD and power :)
P8: DAT0, P23: SCLK and P4: CMD

look at "sample" and forgot about other lines like DAT3..

SPI you can use also but current driver is very slow.