Reading from a USB flash drive

I searched the forum and found one topic on this but it was an old topic. I’m wondering if I can read data from a USB drive from either a photon, which we’re currently using, or an Argon, which we will probably be upgrading to.

Not without digging into the device OS firmware - (currently) these devices don’t support USB Host mode out the box.

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So reading from an SD card is still the best option I assume?

Yes - SDfat library works really well for that.

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you might be able to use a usb host shield similar to this one,

however you would need to figure out the code. this page offers a good overview of a usb host shield project,

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Thanks for the information, I’ll keep this for future projects. This particular one is limited on space so I won’t be able to use it.