Review or Discard at Will

Power over other Pairs

Power over other Pairs (PooP – perhaps the second o is silent) I’m working on a project I’ve entered into Parallax, Inc. Spinneret Design contest. The first thing I need to accomplish after ordering and receiving the parts from Parallax is to create power for the Spinneret. Hello World on my Spinneret will have to wait for me to create a power supply and delivery method.   Basically what PooP allows for is to plug in a DC wall wart into two of the unused of four pairs in 10/100mb cat5 cabling and on the other end add regulation and filtering to supply 5vdc to the Spinneret. I could power the Spinneret with 3.3 but I want the 5vdc for an LCD and Sensirion (temperature/humidity sensor) Last night I sketched out this rough idea with parts list and a couple questions. Click on any of the following images for a larger display. Then picked the parts at a local electronics store. For curiosity sake I also picked up this surface mount RJ45 connector. I have not used it in this current project. Note that it has two LEDs They aren’t powered from the Ethernet. Rather they are supplied by circuitry on the motherboard. I’ve often noted that they power this circuit even with the computer off. Note how I created a strain relief with a zip tie  I got this low profile box at a hardware store (Lowe’s or Home depot) It shows the input jack, the LED power indicator, and the little circuit board I got at Radio Shack to build the regulator, capacitors and power on. My handwritten schematic with some annotations. I think the 3.3 vdc regulator can be placed off of the Vout of the the 5vdc regulator contrary to the ‘proposed addition’ If you know of any resources for drawing schematics please leave a comment. Perhaps clip art or templates for use in gimp, etc.. Or an actual circuit drawing program. Budget is tight. Here it is all buttoned up. I have fifty feet of cat5 between the boxes. They are sitting next to one another for the sake of the picture. And here we go! Hello...

.net Resources

(formerly C# Resources, originally published Jan 13, 2010 @ 22:11 Edit) Here are some links that I have found useful while learning C#, MSSQL and ASP.NET. Perhaps it’s just a big bookmark for me. These links are gleaned from looking at a lot of google… I gota get back to this link ASAP * Info on moving .mdf to sql server particularly aspnetdb.mdf * login, authentication and authorization Might be good reference for the BIG cis 258 assignment MySql stuff These helped me to learn how to implement and use the MySql connector from (sun) The site looked to have many articles on many different programming languages. SQL Injection .net gdi+ graphics Simple mouse and graphics web.config Great tutorials has a bunch of video tutorials. I found the site from some Microsoft MSDN video tutorials hosted at they were free, however most of the others at require a subscription. I think pay up as the quality of the tutorials in my opinion appears to be well worth the subscription price. I’m sure you know about but if not it’s well worth a look. And a second look too. With so much information I find it hard to find what I’m looking for. When my searches aren’t working I try to find some different keywords to get to the same information I’m looking for. Sometimes starting at the home for whatever language you are working on. I copied and pasted these link from Tom’s (.cs/ instructor) ado lecture.   Sams Teach Yourself C# in 24 Hours (online tutorial) C-Sharp Corner Tutorials  Learning C# SSW introduction to C# (pdf) MSDN C# Training Videos MSDN Training Videos on Microsoft Training Videos (ASP & Ajax)   Microsoft Virtual Labs (including, C# & IIS) Microsoft Webcast on IIS Microsoft MSDN MSDN C# Language Specifications   W3C (XHTML/CSS Reference) Not categorized Some insight into visual studio web sites vs web projects. Be sure to read comments. Check this for web site administration