Led throwie from Hackaday.


Led throwie from Hackaday.com. "An LED-throwie which only activates at dawn or night. Add a magnet and you can stick it at metallic surfaces.  ATTENTION: For red, yellow and orange use a 120 Ohm resistor. For blue, green or white no resistor is needed."  Looks neat, but wish it used some parts that I am more familiar with. Wonder if you could not use just any pnp transistor. And etc...

Per NTE:
?
T 2N4401 = 123AP or 2n3906 or 2N2222?
R GL5516 = generic photo resistor


Comments

Post a Comment

Popular posts from this blog

Guiless?

Image
You actually can do a minimal windowing from the command line in Linux with dvtm. Dvtm is excellent for low end machines where graphics are not a priority. In the picture shown we have a working clock, SC a spreadsheet that you can easily export data to your favorite desktop spreadsheet such as Libreoffice, Links2 a web browser pointed to www.google.com, and finally nano a pretty decent basic text editor. I prefer vim, but nano has more of a user interface. Cheatsheet: `dvtm` is one simple, easy-to-use terminal multiplexer. Commonly used Options:     -v         prints version information to standard output, then exits.         -m <mod>   set default modifier at runtime.         [cmd...]   Execute cmd after dvtm is started. KeyBoard Shortcuts:     Mod    Each keybinding begins with Mod which defaults to ^g but can  be               changed in config.h or with the -m command line option.                       Mod-c  Create a new shell window.            Mod-x  Cl
Read more

Web.com and Network Solutions, the Walmart of the internet.

Web.com bought Network Solutions last month, and also has bought Register.com . Web.com picked up Network Solutions for $405M plus some stock. I have been using an e-commerce package form Network Solution for two years. I wouldn’t have noticed the buy out as the Network Solutions site has not changed. A couple of weeks ago I noticed that Network Solutions was offering some new products such as Gorilla Online Marketing . Soon after that we received a sales call about Gorilla Online Marketing from Network Solutions. When I returned the call the phone was answered by Register.com, I was confused at first but quickly found out about the buy outs. They seem like a good fit, they all target the same types of small to medium size businesses. Network Solution has always had great customer support in my opinion. Their sales people are a little irritating sometimes but they beat the heck out of GoDaddy.com and Comodo.com and you can’t beat the prices. If you can beat the prices ask them for a
Read more

MSOffice vs Libreoffice

Image
From https://wiki.documentfoundation.org/Feature_Comparison:_LibreOffice_-_Microsoft_Office Contents 1 Introduction 2 General office suite: LibreOffice vs. Microsoft Office 3 Word processors: LibreOffice Writer vs. Microsoft Word 4 Spreadsheet applications: LibreOffice Calc vs. Microsoft Excel 5 Presentation software: LibreOffice Impress vs. Microsoft Powerpoint 6 Database program: LibreOffice Base vs. Microsoft Access 7 Extensions: LibreOffice extensions adding outstanding features to LibreOffice 8 See also Introduction This page compares the features of LibreOffice 5.0.0 ( download ) and Microsoft Office 2013 . It separates major and minor feature differences and also includes notes on LibreOffice extensions. The comparison highlights differences and therefore does not display any features which are present in both office suites. The feature comparison table is continuously being updated and is work in progress It is a compilation by users and no
Read more