Reading SD #980
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I'm built and uploaded the code to a Lily T Dongle S3 (with Display) and I can see the counter ticking away. Having a hard time mounting the SD (TF card) that is in the device to my Mac (M1) so I can read the CSV data. Any help would be super helpful! |
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Replies: 2 comments 12 replies
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How did you format the SD card? |
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You need at FAT32 formatted SD card. |
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Ah got it! It's not showing up on my Mac as a volume, I will try on PC. Once it's formatted to FAT32, I'll try again! |
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Looks like the TF card that came with it is just outright broken, isn't mounting on my PC nor Mac. Bought a new one to test. |
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You can use the USB interface of your dongle to transmit the data, but not Wifi, because Wifi is used for sniffing. |
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There is no TF/SD card delivered with the Lilygo T-Dongle. What you find in the slot is just a plastic dummy. You need to replace this with a real SD card, and you need to FAT32 format this on a PC or MAC before. |
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Got it! To use the USB interface to transmit data to my MacBook, would I
need to modify any of the configuration files?
…On Tue, Jun 27, 2023 at 6:16 PM Verkehrsrot ***@***.***> wrote:
You can use the USB interface of your dongle to transmit the data, but not
Wifi, because Wifi is used for sniffing.
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Read the docs. |
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New SD card came in today. I formatted to FAT32, but CSV file after running it for 5min is empty? |
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You need to wait a while, writes to SD are asynchronous to save flash write cycles. |
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Gotcha! So I should wait at least 5-10min after I'm done capturing data to unplug the device and then try to read the SD card? |
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I was able to get the CSV to open after waiting 5-10min! Thank you! |
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You need to wait a while, writes to SD are asynchronous to save flash write cycles.