WiPy with external MicroSD card module
I am looking at a project combing the WiPy with the following MicroSD card module:
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?
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.
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?
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
Ahhh ... so would this be correct?
The MicroSD module only has the following pin-outs
SS chip Select
Are they able to be used for DAT0, SCLK and CMD?
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.