Nabaztag: my investigation, proxy and bytecode assembler
http://nabaztag.magicmonkey.org/dokuwiki/
2008-07-19T23:18:15+01:00Nabaztag: my investigation, proxy and bytecode assembler
http://nabaztag.magicmonkey.org/dokuwiki/
http://nabaztag.magicmonkey.org/dokuwiki/lib/images/favicon.icotext/html2008-07-17T01:27:49+01:00Kevin (kevin@87.194.151.46)start
http://nabaztag.magicmonkey.org/dokuwiki/start?do=diff1216254469
In this wiki, I’ll try to document everything which I learn whilst “playing” with my Nabaztag. It probably won’t be all that interesting, but may be of some use to someone, and will probably be useful to me in a few years&rsq...text/html2008-07-17T01:27:00+01:00Kevin (kevin@87.194.151.46)my-assembler - Updated assembler file
http://nabaztag.magicmonkey.org/dokuwiki/my-assembler?do=diff1216254420
My assembler is written in a fairly quick and hacky way, however it seems to work ok. naz_assembler_v2.tbz2 It needs PHP5, and you run it like this: php -f <path to asm.php> <path to .asm file> It will write a file called the same thi...text/html2008-06-24T23:20:31+01:00Kevin (kevin@87.194.151.46)my-nabaztag-proxy
http://nabaztag.magicmonkey.org/dokuwiki/my-nabaztag-proxy?do=diff1214346031
This is where I’m developing a new proxy, which will eventually be able to support multiple rabbits and be able to either offer them services itself OR transparently pass on the request to the Violet service. It needs an Apache config similar...text/html2007-01-21T20:06:47+01:00Kevin (kevin@86.111.164.233)my-proxy
http://nabaztag.magicmonkey.org/dokuwiki/my-proxy?do=diff1169410007
There are many HTTP proxies available on the Internet, probably the most well-known of which is Squid. Most of them can use external “filter” programs to define how the HTTP request is handled, which would be a fine way to spoof a respon...text/html2007-01-20T14:31:28+01:00Kevin (kevin@86.111.164.233)interrupt-handling-example - created
http://nabaztag.magicmonkey.org/dokuwiki/interrupt-handling-example?do=diff1169303488
This program handles an interrupt which is generated when the button on the rabbit’s head is pressed. It flashes some lights all the time, to show that the program hasn’t locked-up, and it flashes another light when the button is pressed...text/html2007-01-20T14:28:54+01:00Kevin (kevin@86.111.164.233)clockface - created
http://nabaztag.magicmonkey.org/dokuwiki/clockface?do=diff1169303334
This is a program which my girlfriend suggested I write; I don’t see too well without glasses, so at night I find it difficult to read a clock. This program makes the tummy LED change colour depending upon what hour it it, and the lights aroun...text/html2007-01-20T14:23:54+01:00Kevin (kevin@86.111.164.233)programs - created
http://nabaztag.magicmonkey.org/dokuwiki/programs?do=diff1169303034
Here’s some fun programs I’ve written - I’m very much still at the learning phase, so most of these are experimental programs. Clockface Interrupt handling example ...text/html2007-01-20T13:02:20+01:00Kevin (kevin@86.111.164.233)the-bytecode
http://nabaztag.magicmonkey.org/dokuwiki/the-bytecode?do=diff1169298140
The Nabaztag runs a virtual machine on top of a PIC 18F. The PIC code handles all of the bootup, all the network stuff, the HTTP requests, and all of the actual hardware interface. The virtual machine gets new firmware via a type “5” HTT...text/html2007-01-16T23:55:39+01:00Kevin (kevin@86.111.164.233)random-things-i-ve-learnt
http://nabaztag.magicmonkey.org/dokuwiki/random-things-i-ve-learnt?do=diff1168991739
in no particular order... For a type 4 packet (which sets the SRC data) to be interpreted, it must start with the same 4 bytes as the “ID” of the currently-running program. The value of the register given to the SRC instruction starts ...text/html2006-08-12T23:47:22+01:00Kevin (kevin@86.111.164.233)iroise-assembler - Properly marked the code sections
http://nabaztag.magicmonkey.org/dokuwiki/iroise-assembler?do=diff1155422842
A nice person has put together a pretty-darn-good online (dis)assembler at http://nabaztag.iroise.net/ but there’s absolutely _no_ documentation for the assembly code which it uses. I found that the easiest way to find out about it was to capt...text/html2006-07-30T20:30:51+01:00Kevin (kevin@86.111.164.233)intercepting-the-packets - Linked to my proxy page
http://nabaztag.magicmonkey.org/dokuwiki/intercepting-the-packets?do=diff1154287851
There’s a few ways in which you can intercept the communication between the rabbit and the server: Define a proxy in the rabbit’s wireless setup screen, to point at your packet-intercepter Spoof the response to the DNS request that the...text/html2006-07-30T18:35:36+01:00Kevin (kevin@86.111.164.233)the-hardware - Added the title
http://nabaztag.magicmonkey.org/dokuwiki/the-hardware?do=diff1154280936
The Nabaztag is made up of: 5 coloured lights (3 across the stomach, one behind the nose, and one lighting-up the toes), all of which are made of colour-mixing 8-bit red/green/blue LEDs 2 motors, one for each ear a position sensor on each motor ...