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Friday, June 26. 2009
@infinitesummer #infsum #infnashua Posted by Johnathan Vail
in Books at
08:28
Comments (0) Trackbacks (0) @infinitesummer #infsum #infnashua@infinitesummer is the twitter feed for the Infinite Summer project to get lots of people to read David Foster Wallace's tome Infinite Jest. There is a rough schedule as a guideline to keep people moving along and allow discussion of the book without too many spoilers for others. I plan on hosting several meetup tweetups to hang out with like minded readers to read and socialize. Since I live near Greeley Park and it is an ideal location I suspect most of them will take place there. We will be using the twitter hashtag #infnashua while the general hashtag is #infsum So get thee to a bookseller and pick up a copy of Infinite Jest and follow @infintesummer on Twitter. Oh and one more thing. Feel free to use the #infnashua tag to make your own readup tweetup. I will try to be there. Monday, May 11. 2009@humandoor micasaverde Z-Wave enabled Schlage lock on twitterLike @catdoor I wanted to tweet access to the house for humans too like I have for the cat. Schlage has a new line of Z-wave enabled locks and deadbolts. ![]() Continue reading "@humandoor micasaverde Z-Wave enabled Schlage lock on twitter" Monday, January 12. 2009Saturday, January 10. 2009RFID @catdoor for Twitter, Phase 1Simple concept, put an RFID chip on your cat and a reader by the door. Tweet whenever the cat uses the door. The reader is a APSX 15.56MHZ RW-210 reader. The RFID is a Sakymat LOGI TAG aka "laundry tag". The server is a Hush mini-ITX machine with a 32G CF chip instead of a hard drive. The code is written in Python running on Fedora Core 10. Pictures will follow, the code is below: Continue reading "RFID @catdoor for Twitter, Phase 1" Monday, December 1. 2008
Machining Mars Etek Backplate with ... Posted by Johnathan Vail
in Electric Motorcycle at
21:03
Comments (0) Trackbacks (0) Machining Mars Etek Backplate with PythonTo get the slots and the screws just right I used a Sherline tabletop CNC milling machine to cut the screw slots and openings. Only a little rework and it came out pretty good. Being new to machine a g-codes and also being a programmer I cobbled up some python to calculate the angles and emit the g-code used by the linuxcnc program. The code is shown below: Continue reading "Machining Mars Etek Backplate with Python" Wednesday, November 12. 2008Windows Sockets Error 10048 and TIME_WAITThe problem: I have some Windows clients in Borland C++ and Python 2.6 talking to a server (in this case Borland C++ but it shouldn't matter as this seems to be a client issue). The client opens a socket to the server, sends some data, gets some data back. Fine. But if it does this very very fast or there are several clients running at once it will soon FAIL with WSAEADDRINUSE 10048 "Address already in use" A page for Pyro has this to say along with a very simple program to replicate the problem: There seems to be a problem (bug? feature?) in the Windows TCP stack that makes your program crash if it creates a lot of socket connections to the same location. Or maybe even just socket connections. I have no idea what is causing this, but it can be easily reproduced by the following code: Continue reading "Windows Sockets Error 10048 and TIME_WAIT" Wednesday, October 29. 2008
Interfacing to Fluke Meters with Python Posted by Johnathan Vail
at
11:18
Comments (0) Trackbacks (0) Interfacing to Fluke Meters with PythonI needed to automate some lab tests involving current measurements with a Fluke 187 meter and thought I would share my results. Since the other half of the code I was interfacing with was in python the best way to get the current from the meter is with python. I have an original RS-232 cable and also a newer USB cable with with a Fluke 289 meter. The code is below but to summarize my results:
Source code: Continue reading "Interfacing to Fluke Meters with Python" Monday, October 13. 2008Ruby Short Indicates the Force is OnFrom sears.com description for a slow cooker:
Saturday, August 30. 2008
Dreaming Mechanical Design Posted by Johnathan Vail
in Electric Motorcycle at
07:13
Comments (0) Trackbacks (0) Dreaming Mechanical DesignThis was maybe a half-dream. At the time I thought I was awake but now that I am really awake (at least I assume I am awake, if you are reading this then I really am awake) I realize that I was probably dreaming. The dream was the mechanical design of my El Ninja electric motorcycle. In particular I came up with the idea of welding captive nuts to the ends of the box stock for the cross members. Also to separate the two frame members and perhaps make the top one a turn-buckle even. And the amazing thing I think these are still good ideas in the light of day. Tuesday, August 26. 2008Almost Done (not)Now that the bike is in my garage I can finish stripping it. I also mounted the new sprocket and cleaned some things up. The big hurdle now is figuring out the lower frame and motor mount. Once there I just need to get a new chain and I should have all the parts. Oh and I should also get some new cotter pins. No sense re using the one on the axle. Here's a pic show the difference between the new and the old rear sprockets: Continue reading "Almost Done (not)" Sunday, June 29. 2008
Frame and Battery Mount Posted by Johnathan Vail
in Electric Motorcycle at
07:39
Comments (0) Trackbacks (0) Frame and Battery Mount
My original design was to use 1" angle iron to make a cage to hold two layers of two batteries each. It would be made structural as it fills the place where the motor was which was also integral to the structure of the bike since there is no lower frame member. The Lectra is very similar to what I was thinking:
Continue reading "Frame and Battery Mount" Monday, May 5. 2008Thursday, April 17. 2008total bladerunner or do androids dream of blue skies on mars?this place is odd sometimes. I had a Bladerunner moment the other evening. first the air is filled with smog and chinese dust. that makes the sky look like a tv tuned to a blank channel. then coming out of a restaurant the other evening they had an ad truck (truck with video advertising and blaring audio) drive by as a helicopter flew low over the buildings. totally like a scene in Bladerunner. the factory I have been visiting is brand new and super modern looking. in a retro way. in the cafeteria on the top floor the whole place has glass walls looking out over the valley and mountains and the decor is like 50's future with pastel yellow and lime green furniture and the workers in the cafeteria in matching uniforms. with the chinese dust the sky has a strange hazy colored look to it so it felt like the mars base from total recall. Monday, March 31. 2008MAKE UPnP FAST
The Goal: I have a linux based embedded appliance that I need to find and configure on a typical automatic DHCP network.
The Solution:Universal Plug and Play. If it all works correctly you can have an icon representing your appliance or device magically pop up on Windows "Network Places" in about 20 minutes. Basically you download the pupnp.lib package from sourceforge and configure/make/install it and try the sample devices. When that works, modify the appropriate XML and HTML files. And there you go! But... things are never quite that easy... Continue reading "MAKE UPnP FAST" Monday, January 28. 2008
This is very close to what I am doing... Posted by Johnathan Vail
at
20:36
Comments (0) Trackbacks (0) This is very close to what I am doing...This video is very close to what I am doing. He has a bigger Ninja and maybe larger batteries. And a more powerful motor. But a great video and it looks like he did a great job. |
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