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I need help on designing a handheld storage based on micro SD Card + QSPI interface + Wi-Fi data transfer

HKPhysicist

Hello Fellow Engineers and Experts,

I want to design a device to replace the super expensive iCloud or Gcloud digital monopoly.  So you can download your beloved digital contents from your phone any time through Wi-Fi.  Then, stack them up one by one infinitely under your desk.

It is my basic components:

  1. micro SD Card
  2. SQPI interface and controller
  3. a MCU with SQPI peripheral, with SoC Wi-Fi
  4. a built-in Li+ battery
  5. Li+ charger chip
  6. any more
  7. There are already many USB storages for this purpose.  So this method will not be my goal.

Please share your opinions.  Perhaps, we can work together.  Wink

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  • 0

      this is an interesting endeavor to be sure but I am wondering if you can go into more detail on the use case.  For instance, what kind of data will you be transferring from the phone?  Also, how does the data get onto the phone in the first place?

    Also explain your last sentence:

    "Then, stack them up one by one infinitely under your desk."

     

  • 0 in reply to dang74

    iPhone users are very rich.

    Their phones do not have SD Card slots.  They pay big money every month to icloud for storage.

    USB sticks might be regarded as low class by them.  So,a separate high class portable storage fit their taste.  They take video along their trips and my device inside their pocket or bag stores their video through wifi (streaming whenever possible). 

    Once the current SD Card is full, my app will alert the user to place an empty SD Card into my device.

    Nowadays, SD Card can be up to 1TB.  So my device is a complete replacement of the icloud digital monopoly.

    As my customer have more and more digital video collection, what he have to do is to keep them well indoor.  So, it is his own responsibility.

    In the icloud digital monopoly scenario, if one does not pay a single month fee, all his digital creation will be locked.  If the subscriber bankrupts, Apple won't care about him.  It is a total loss from the icloud subscriber's viewpoint.

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  • 0 in reply to dang74

    iPhone users are very rich.

    Their phones do not have SD Card slots.  They pay big money every month to icloud for storage.

    USB sticks might be regarded as low class by them.  So,a separate high class portable storage fit their taste.  They take video along their trips and my device inside their pocket or bag stores their video through wifi (streaming whenever possible). 

    Once the current SD Card is full, my app will alert the user to place an empty SD Card into my device.

    Nowadays, SD Card can be up to 1TB.  So my device is a complete replacement of the icloud digital monopoly.

    As my customer have more and more digital video collection, what he have to do is to keep them well indoor.  So, it is his own responsibility.

    In the icloud digital monopoly scenario, if one does not pay a single month fee, all his digital creation will be locked.  If the subscriber bankrupts, Apple won't care about him.  It is a total loss from the icloud subscriber's viewpoint.

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