new technical notes

http://kicad.sourceforge.net/wiki/index.php/FAQ#How_can_I_use_relative_coordinates.3F

Edit /usr/share/kicad/template/kicad.pro

eg: LibName2=/root/xxxxx_2/xxxxx/trunk/scrying_hardware/lib/cywusb6935

collected here:

https://code.goto10.org/svn/xxxxx/trunk/scrying_hardware/

with scrying platform/ATmega128 functioning as frequency counter. The FGM-3 [Fluxgate Magnetometer] sensor outputs frequencies between approximately 120 kHz and 50 kHz.

Local Resonance Amplifier

Now tested and working for additional power: connections for coil and external power source.

http://1010.co.uk/lra2.tar.gz

Software: http://scrying.svn.sourceforge.net/viewvc/scrying/

[in main scheme interpreter and also test code as lra.c]

http://1010.co.uk/hidclient02.tar.gz

Command line client for xxxxx-HID device (see http://1010.co.uk/avrhid.html)

Usage: ./hidtool read 5

[first rmmod usbhid to detach driver]

reads analogue 10 bit values form channel 5 to STDOUT.

Also included eegtool and hidtoolosc [channel] [IP] [port] for HID to OSC message forwarding.

(also note for pd-extended Debian testing/Lenny install: http://www.mail-archive.com/pd-list@iem.at/msg21782.html )

for the MAX548 DAC) to scrying/avr Scheme interpreter and hardware library:

 (dacwrite 128)

[library code for the AVR Atmega128 written in C]:

http://scrying.svn.sourceforge.net/viewvc/scrying/

For prototype LRA [Local Resonance Amplifier] board:

http://1010.co.uk/lra.tar.gz

1] Ported from gr.hier_block to use gr.hier_block2 and from flow_graph to top_block

2] Our example code replaces examples within:

http://acert.ir.bbn.com/projects/adroitgrdevel/

source tree:

http://acert.ir.bbn.com/viewvc/adroitgrdevel/adroitgrdevel/

3] New code:

http://1010.co.uk/bbn-examples-hier2.tar.gz

4] Usage:

 ./bbn_80211b_rx.py -R B -f 2.46G -v -b -p -S 4

5] TODO: decode packets and print to file/stdout.

6] [un]related references:

http://www.gnuradio.org/trac/browser/gnuradio/trunk/gnuradio-core/src/python/gnuradio/gr/hier_block2.py?rev=6466

http://beagleboard.org/project/Beagle+SDR/

http://span.ece.utah.edu/pmwiki/pmwiki.php?n=Main.80211bReceiver

http://www.nabble.com/BBN's-802.11b-code-td18136664.html

http://www.mail-archive.com/discuss-gnuradio@gnu.org/msg15066.html

http://www.nd.edu/~jnl/sdr/docs/tutorials/8.html

http://www.phys-x.org/grblog/grblog.html

http://www.gnuradio.org/trac/wiki/Tutorials/WritePythonApplications

1] R:

svn checkout https://svn.r-project.org/ESS/trunk

(load "/path/to/ess-svn/lisp/ess-site.el")

M-x R in GNU Emacs

M-x ess->tabcomplete for functions

  #simplest
  
  require(akima)
  
  require(lattice)
  
  mtab<-read.table("/root/2310test.log")
  par(bg = "slategray")
  persp(interp(mtab[,1],mtab[,2],mtab[,3],duplicate="strip"), theta = 110, phi = 100, col = "green3", ltheta = -120, shade = 0.8, border = NA)
  
  # cloud (lines) and wireframe
  
  mtab<-read.table("/root/2310test.log")
  temp <-data.frame(mtab[,1],mtab[,2],mtab[,3])
  reggrid <-interp(mtab[,1],mtab[,2],mtab[,3],duplicate="strip")
  cloud(mtab[,3]~mtab[,2]*mtab[,1],type="l")
  wireframe(reggrid$z,scales=list(arrows=FALSE),drape=TRUE,colorkey=TRUE)
  
  help(persp)

2] gnuplot:

See: http://cars9.uchicago.edu/~ravel/software/gnuplot-mode.html

  ;; Lines enabling gnuplot-mode
  
  ;; move the files gnuplot.el to someplace in your lisp load-path or
  ;; use a line like
    (setq load-path (append (list "/root/soft/gnuplot-mode.0.6.0") load-path))
  
  ;; these lines enable the use of gnuplot mode
    (autoload 'gnuplot-mode "gnuplot" "gnuplot major mode" t)
    (autoload 'gnuplot-make-buffer "gnuplot" "open a buffer in gnuplot mode" t)
  
  ;; this line automatically causes all files with the .gp extension to
  ;; be loaded into gnuplot mode
    (setq auto-mode-alist (append '(("\\.gp$" . gnuplot-mode)) auto-mode-alist))
  
  ;; This line binds the function-9 key so that it opens a buffer into
  ;; gnuplot mode 
    (global-set-key [(f9)] 'gnuplot-make-buffer)
  
  ;; end of line for gnuplot-mode

  # make sure all data is tabbed and good
  
  # C-c C-r to send region to gnuplot
  
  set parametric
  unset key
  set style data line
  set surface
  set contour both
  set cntrparam bspline
  set dgrid3d 30,30,10
  splot "/root/2310test.log"
  
  # flat heat map
  
  unset surface
  unset contour
  set view map
  set pm3d at b
  set dgrid3d 30,30,10
  splot "/root/2310test.log" using 1:2:3
  
  help splot
  
  # for line style plot (a la plot3)
  
  set ticslevel 0
  set surface
  unset contour
  unset pm3d
  unset dgrid3d 
  splot "/root/2310test.log" using 1:2:3 with lines
  
  # animation and overlays??
  TBC

[photo credit: Lindsay Brown]

During the TEMPEST workshop we developed live TEMPEST voice transmission based on:

http://www.erikyyy.de/tempest/

• AM modulation of voice signal transmitted through changing screen

contents:

1] Patch mp3player.cpp (in above code):

  101c101
  <   screen = SDL_SetVideoMode(resx, resy, 8, SDL_HWPALETTE | SDL_ANYFORMAT | SDL_FULLSCREEN);
  ---
  >   screen = SDL_SetVideoMode(resx, resy, 8, SDL_HWPALETTE | SDL_ANYFORMAT); // | SDL_FULLSCREEN);
  130a131,132
  > 
  > #if 0
  143a146,151
  > #else
  >   FILE *input=fdopen(0,"rb");
  >   audiolength=128;
  >   audiobuf = (u_int8_t*) malloc (audiolength);
  >   fread(audiobuf,audiolength,1,input);
  > #endif
  182c190,194
  <       if (curpos>=audiolength) exit(0);
  ---
  >       if (curpos>=audiolength) 
  >       {
  >         curpos=0;
  >         fread(audiobuf,audiolength,1,input);
  >       }
  184a197
  >     usleep(1.0/7680*128*1e6-100);

2] Commandline invocation:

  sox -t alsa hw:0,0 -t raw -u -b -c 1 -r 7680 - | ./tempest_for_mp3 65000000 1024 768 1344 806 1500000 1 100 fake

with latter figures culled from: xvidtune -show

 ./usrp_tv_rcv_nogui.py -d 32 -i usrp -f 623.234M -R B -8 -g 59 ~/testingpipe

and:

 cat testingpipe | devdisplay 128 625 1

[using new devdisplay with blocksize option now at: http://1010.co.uk/devdisplay.c ]

Simple C code for phototransistor TEMPEST using BPW42

http://1010.co.uk/temppar.c

Using the following applications and options:

 usrp_fft.py -R B -g 59 -W -f 640M -d 16

 usrp_fft.py -R B -g 59 -f 640M -d 8 -8

 usrp_oscope.py -R B

 ./usrp_tv_rcv.py -R B -f 519.25M -g 59 -d 8 -8

 ./usrp_am_mw_rcv.py -O plughw:0,0 -R B -f 519.25M

 usrp_wfm_rcv.py -O plughw:0,0 -R B

 ./hfx2.py -R B -O plughw:0,0 -c 640M

 class my_graph(gr.top_block): // rather than class my_graph(gr.flow_graph):

 python specsense.py -R B 800M 2400M -d 32 > testing_spec
 plot "/root/testing_spec" (in gnuplot)

1] On Debian testing:

 apt-get install libtool python-wxgtk2.8 sdcc-libraries-nf sdcc-nf guile-1.8-dev libfftw3-dev libboost-test1.35-dev libcppunit-dev 

2]

 svn co http://gnuradio.org/svn/gnuradio/trunk gnuradio

3]

 ./bootstrap
 ./configure
 make
 make install

No use of auto***. Only libtool.

References:

http://gnuradio.org/trac/wiki/BuildConfiguration

http://staff.washington.edu/jon/gr-osx/gr-osx-core.html

Using GeoIP, matplotlib and basemap to plot geography of IPs currently swarming with same OS/browser fingerprint to:

http://1010.co.uk/org/autotate.html

After much configuration and patching of basemap and geos:

http://osdir.com/ml/gis.geos.devel/2006-06/msg00021.html

For first processing of logs using grep and a keyboard macro in GNU Emacs based on:

re-search-forward "^[0-9][0-9]*[0-9]*"

And then using variant of:

https://fedorahosted.org/fedora-infrastructure/browser/scripts/geoip/generate-worldmap.py

from mpl_toolkits.basemap import Basemap

• Links:

http://matplotlib.sourceforge.net/

http://www.scipy.org/Cookbook/Matplotlib/Maps

http://www.maxmind.com/download/geoip/database/

M-x serial-term

and then C-c is escape eg>

C-c C-b to switch buffers

C-c C-k char mode

C-c C-j line mode [with history accessed by way of M-p previous and M-n next]

providing adequate console for scrying serial connection [/dev/ttyUSB0].

To upload a region of code to the serial device:

  (defun serial-send-region ()
    (interactive)
  (let ((tmper (buffer-substring (region-beginning) (region-end))))
    (switch-to-buffer (find-file-noselect "/tmp/scrying.transfer"))
    (erase-buffer)
    (insert tmper)
    (save-buffer "/tmp/scrying.transfer")
    (start-process "scrying-upload" nil "/root/scrying/scrying/scrying.sh")))

acii-xfer command is wrapped in scrying.sh:

  #!/bin/sh
  
  /usr/bin/ascii-xfr -sen -l 10 -c 10 /tmp/scrying.transfer > /dev/ttyUSB0

Adding code to org-remember.el to place note title and URL on WelcomePage.html/index:

http://1010.co.uk/org-remember.el

 '(org-directory "~/svn_test/trunk/orgpub/")
 '(org-remember-interactive-interface (quote outline))
 '(org-remember-store-without-prompt nil)

exec /usr/bin/evilwm -term xtt -fg green -bg black 

XTerm.vt100.metaSendsEscape: true

(org-remember nil ?w))