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USB 1GB Flash memory with LCD

softwareinthecloud

Dear Element14 Community,

 

I am trying to build a USB flash memory device with built-in LCD.

 

I need to show the files or a particular file on the LCD.

The LCD needs to be very small similar to these:

image

 

Do not need to have a battery, microphone and audio player capability.

 

Could you please let me know if this is possible?

 

I am planning to 3d print the case myself. I just need the pcb+memory & LCD to be around less than $2.

 

How can I get the memory LCD and PCB built? Should I get the components seperately?

 

Is there a board that I can buy off the shelf that can do these at the lowest possible cost?

 

Thank you.

Parents

  • What's the goal? Sometimes starting at the beginning lets other people give you idea that you haven't thought of. You can get Wemos or arduino pro-mini knock-offs from ebay pretty darn cheap (about $5 or so). You can also get SD Card shields and Oled shields for about the same price (again $5 or so)....you could then display the contents of the sd card on the screen...and get wifi for free.

  • in reply to cmspooner

    The MP3 players go around $3.50 on alibabaexpress.

     

    I can sourcee them if I want to but the problem is the software. Not that easy to customise software.

     

    I may need o get a different programmer to reflash the firmware to suit my needs(dont know if it will be even possible wit tose mp3 players).

    Also SD card increases the price. Need one that has built in memory.

  • in reply to softwareinthecloud

    How many are you trying to make ?

     

    If it's just a few then it probably isn't viable - your only hope would be to get hold of an existing product that you could hack but a very low cost MP3 player will probably be based on a single custom chip and one memory chip. The manufacturers won't talk to you about how to modify it unless you are going to spend a lot of money.

     

    Building from scratch would need a micro (in BGA or similar) a flash chip, the display, some odds and ends and a custom board, and the skills to do the design.

     

    MK

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  • in reply to softwareinthecloud

    How many are you trying to make ?

     

    If it's just a few then it probably isn't viable - your only hope would be to get hold of an existing product that you could hack but a very low cost MP3 player will probably be based on a single custom chip and one memory chip. The manufacturers won't talk to you about how to modify it unless you are going to spend a lot of money.

     

    Building from scratch would need a micro (in BGA or similar) a flash chip, the display, some odds and ends and a custom board, and the skills to do the design.

     

    MK

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