Quote from: yheneaul on February 23, 2018, 02:04:59 AM

Hi Bitcoin fans!

I ported the code of the Bitcoin trezor wallet to Linux to be able to run it on a raspberry pi zero. The raspberry pi zero is a very popular, small and cheap computer that is available for approximately 5$. The choice of the pi zero is interesting because it can be used as a usb device when plugged on a host computer.

This allow anybody to build its own hardware wallet at a very low cost with a good level security if used with a pass phrase.

All the instructions to build it are on my blog here:

https://www.pitrezor.com

On my site I explain how to assemble the buttons like the real trezor and connect an oled display. The oled is optional because I also support the hdmi output of the pi zero directly.

The software image is ready to download and flash on an SD Card. The Linux image is based on Yocto which allowed me to build a very minimal Linux system with only the bare minimum softwares to run my application. All code modifications are public and the software image can easily be rebuild (with docker).

Yannick

Hi yheneaul,
it's really impressive that you were able to do this development.
On the other hand, (and sorry to say, but) I would never trust any solution that's not the original, and it's not coming from the manufacturer's webshop directly, and that's a pity for amazon and ebay and for the others.... (but that's just me)
Wallets are the security storages of the coins (OK, I know they're only store the private keys), so if I have to deal with secure stuff, I'll buy the original.
What is the reason people buy Trezor, Ledger Nano S, and others? Because they want to use them, not only to store their coins. Hardware wallets are for people who spend some coins sometime and not only gathers them. For those who don't want to spend, paper wallet is a way cheaper solution (cheaper than $5 maybe). Hardware wallets need to have the screen and the buttons to let the users control their spendings, so your solution can be the competitor of the paper wallets, maybe.