Topic: [ESHOP launched] Trezor: Bitcoin hardware wallet - page 258. (Read 965789 times)
First prototype of Raspberry Pi shield:
First preview of the design. Dimensions are 60x40x10 mm.
ok, gonna follow this for real ... I'm a sucker for hardware prototype pics.
yeah, hardware prototype porn... not even cable porn comes close
ok, gonna follow this for real ... I'm a sucker for hardware prototype pics.
Slush:
- what will be level of serial comms allowable with the board? (e.g. stty access via minicom?)
Slush:
- what will be level of serial comms allowable with the board? (e.g. stty access via minicom?)
Stellaris will connect to linux via /dev/ttyACMx in case TI code for serial port is used.
ok, gonna follow this for real ... I'm a sucker for hardware prototype pics.
Slush:
- what will be level of serial comms allowable with the board? (e.g. stty access via minicom?)
Slush:
- what will be level of serial comms allowable with the board? (e.g. stty access via minicom?)
We don't plan this, as device itself isn't full bitcoin client and it cannot check transaction validity. For now we're focused more on making secure wallet than on mobile payments.
As I promised, there's picture of the prototype for custom device. Small display, two buttons and micro USB is already here. However we're still waiting for samples from our distributor, which we need for building RPi shield and random number generator for this prototype.
Oh, not sure if anyone asked, but is there a way to do piglet to piglet transactions? connecting the two devices to each other?
God, lol, dont use lm4f120, I have two which died last week from just a bit of over current on their pins..
Unfortunately there's no better alternative that I know of at the moment. Were you using plain chip or the Launchpad when you fried your ones?They were controlling my fpgas. Power spiked and there was some over-current. PIC32 controllers surived well. Also, those lm4f120 which were buffered survived. Those two werent buffered, I was betatesting some new firmware. Its probably the design of the IO blocks. They are able to sink only 4mA with two pins on each side able to sink 8mA when most other MCUs can sink more. They also get a bit too hot at 80MHz imo.
God, lol, dont use lm4f120, I have two which died last week from just a bit of over current on their pins..
Unfortunately there's no better alternative that I know of at the moment. Were you using plain chip or the Launchpad when you fried your ones?
God, lol, dont use lm4f120, I have two which died last week from just a bit of over current on their pins..
Man I can't wait to buy one of these. Any ideas about the price yet?
I don't like false promises and there're still so many open questions. Price is driven mostly by cost of casing and count of devices built in one round/series. Although we can guess the price of casings pretty soon, we still don't have any estimation for size of the market. Price per device for 100 devices can be many times higher than for 10000 devices...
As I promised, there's picture of the prototype for custom device. Small display, two buttons and micro USB is already here. However we're still waiting for samples from our distributor, which we need for building RPi shield and random number generator for this prototype.
Man I can't wait to buy one of these. Any ideas about the price yet?
As I promised, there's picture of the prototype for custom device. Small display, two buttons and micro USB is already here. However we're still waiting for samples from our distributor, which we need for building RPi shield and random number generator for this prototype.
I just started discussion about hardware wallet wire protocol: https://bitcointalksearch.org/topic/hardware-wallet-wire-protocol-125383
Feel free to write your ideas and criticism there. I'm still writing some short description for proposed messages.
Feel free to write your ideas and criticism there. I'm still writing some short description for proposed messages.
Slush, this is so awesome. Any very rough estimate on when the Raspberry Pi shield will be available? Before or after the standalone device?
I don't want to promise any date yet, but RPi version will be available before "full" device. We're currently using RPi for prototyping and I hope that RPi shield will help us hardening the software prototype and protocol for final device...
Slush, this is so awesome. Any very rough estimate on when the Raspberry Pi shield will be available? Before or after the standalone device?
got any more pictures
Nothing changed on the look yet. We're making progress on the software layer and we're waiting for sample chips from the distributor. On thursday we'll have custom PCB for our evaluation board, so maybe some pictures will appear then ;-).
got any more pictures
You can go even further than this. If you send the entire serialised spending transaction once for each TxInput, you don't even need to store outputs. You can then have essentially unlimited inputs and outputs.
I know, however I prefer to compile transaction inside the device, instead of parsing that one provided by the client. I see potential security issues while doing this and not having full implementation of script parser...
Jump to: