Trying to figure out how to access my Pico Wireless Micro SD card. The closest I have got is picowireless.is_sdcard_detected() which returns a value of True. Does anyone know how to read/write the card?

I’ll caveat this response with a) I don’t have a Pico Wireless pack, so this answer may be complete nonsense and b) It looks like you’re using MicroPython (I’m assuming that from the is_sdcard_detected() call) and this answer relates to C++ … With that out of the way, there’s an example in the pimo…

I’ve not used the SD card on the wireless board but I have got the SD card working with MicroPython. You do not even need an SD card reader. I soldered some pins onto the pad of the micro SD card adapter and connected directly to the Pico pins. In my example I used the other SPI set. You can find t…

Thanks for the reply. I should have been more specific - yes, I’m using MicroPython. I have a look at the link you provided.

I can confirm that the sdcard on the pico wireless is driven by the pico on SPI0 so I have made the following adjustments to the code: sd_spi = machine.SPI(0, sck = machine.Pin(18, machine.Pin.OUT), mosi = machine.Pin(19, machine.Pin.OUT), miso = machine.Pin(16, machine.Pin.OUT)) sd = sdcard.SDCar…

I’ve found this to be the most frustrating of all my Pico add-on boards. Lack of clear documentation about the correct pins is not helping. It has been out long enough for this to have been sorted by now. The ‘home-made’ SDcard adapter method works perfectly in MicroPython - build your own. [SD-Ca…

I’m glad it’s not just me! Thanks for the comment Tonygo2. By the way I found your workout for waveshare 1.3" IPS display very useful. So come on Pimeroni, give us an example! RytonMike

Just gave it a go and @Tonygo2 's SD card example seems to work fine for me on Wireless Pack with sd_spi = machine.SPI(0, sck = machine.Pin(18, machine.Pin.OUT), mosi = machine.Pin(19, machine.Pin.OUT), miso = machine.Pin(16, machine.Pin.OUT)) sd = sdcard.SDCard(sd_spi, machine.Pin(22)) I saved …

Yep, just tried a few SD cards with varying results - the ones on the left worked fine and the ones on the right didn’t (the 1GB Sandisk did the [Errno 5] EIO thing) [PXL_20211015_091910267_2]

Hel Gibbons, Thanks I just tried it with a SanDisk Ultra 8GB (10) SDHC I (Red/Grey) in the Pico Wireless SD slot and it worked perfectly. Another thing fixed! I get my SD cards from Amazon or Ebuyer.com - there are some very iffy cards on Ebay.

Pico Wireless - how to access SD card?

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gneeman August 23, 2021, 10:19am 5

Thanks very much for your reply. I’ll have a good look at the info you provided and give it a try.

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Pico Wireless - how to access SD card?

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