14 Jul 2007
on Lego Technic.
15 Apr 2007
dusted off my old N scale layout and resumed my work on the
DCC command station.
23 May 2003
, which is a small collection of
classes that allows an XML
document to be used to load an object tree and vice versa. The mapping
between the XML file and the object tree is done using a config XML file.
A simple example followed by a more complicated one is described.
5 Nov 2002
I built a
based on a PIC communicating
with a java front-end on a PC through a serial port. It captures IR signals
from remotes and displays the waveform. The results are in
an analysis of IR signals
with details of the remote control signals I have analysed(JVC, Sony,
5 Dec 2000
Resuming my work on the DCC
project, I plan on how programming can be
on the command station. A description of
implementing service mode
has also been added.
1 Dec 2000
I added a section describing
how I used transition curves
on my new
1 Nov 2000
Recovering from eye surgery,
I had a bit of time on my hands. I started building a new
N scale layout
to sit on top of a wall
31 May 99
The page layout has been
revamped. It uses frames along with all its attendant idiosyncrasies.
14 May 99
Description of a protocol
to connect several PICs
together has been added. I have also described an approach for computer control
of a turntable
28 Jun 98
I've added some pages
on simulating the motion of a
human body using java and VRML2.
19 Mar 98
Dying to use my new toy(an AcerScan 610Plus scanner), I scanned images of my first
attempt at making a PCB and my Accessory Decoder PCB. The images appear in the
5 Sep 97
A week's break between jobs has allowed me to spend some time on my
N scale layout.
This gave me enough material to flesh out my description of the
12 Apr 97
A PIC interface to a vacuum fluorescent display
has been added. This page also debuts a Java applet to show timing diagrams
generated from a trace file from MPSIM(DOS).
18 Feb 97
of a PIC 16C84 based IR receiver which
receives Sony remote control signals and sends them on an RS-232 port have
been added. The PIC source is also available and the listing has been produced
by the ASM to HTML converter.
10 Feb 97
A baby boy is born to me and my wife Pradnya at 4:38 PM. He weighed 8 lbs and
has been named RISHIK
the virtuous one!
22 Jan 97
on a Java program that makes
an HTML file out of a PIC assembly file has been added.
9 Jan 97
on a preliminary design of a DCC
turnout decoder has been added. A description of my attempts to fit a Lenz
decoder into a Fleischman loco can be found here
2 Aug 96
on using Microsoft Excel
to generate stimulus files for MPSIM has been added. A
on a couple of VB programs
to display MPSIM trace files like scope traces has been added.
22 Jul 96
Several pages outlining a DCC based
have been added. Two sample spreadsheets - one for
testing serial input at 1200 baud and the other for testing a
DCC input are also in there.
18 Dec 95
A GIF picture for illustration and a Postscript file for the actual
template have been added to the Cubic Spiral
Updated on 5 Nov 2002. Feedback to