[Idea] A $30 hardware Bitcoin wallet

Idea:

1. Modify Rockbox open source MP3 player firmware adding Bitcoin tx signing functions to it.


2. Buy SanDisk Sansa Clip Zip MP3 player for $30 (or something similar).


3. Install custom firmware.


4. You have a device which can sign Bitcoin transactions, and it costs only $30.

Benefits of using MP3 player hardware:

1. SanDisk produces it in high quantities, anybody can buy it, anywhere.


2. It is relatively cheap.


3. It has relatively good screen, which can be used to display tx details for better security.


4. It also works as an MP3 player, so people won't be upset about the need to spend money specifically on Bitcoin wallet

Drawbacks:

1. I don't know if USB connection it has can be used for fast and convenient signing. (I.e. whether it is customizable enough.)

submitted by killerstorm

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