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Looks like a small bulb used to indicate something unusual, like a malfunction.

VIM auto save spell checking language

Filed under: Uncategorized — Tags: , , , , , — admin @ 2014/07/15 12:40

If switching between languages is frequent then having a fixed default spell checking language on every start is not very comfortable. This simple plugin solved my issue: (more…)

Hibernation and turning swap off

Filed under: Uncategorized — Tags: , , , , , — admin @ 2014/07/07 09:20

Having 16 GB RAM today is nothing extraordinary. Swap seems to be a useless thing. And it perhaps is. Even if you are able somehow fill up those gigs of memory then it is caused probably by some extremely hungry program which will initiate a horrendous swapping and your system will become virtually frozen. (more…)

MS VC++ 2012 and Windows XP

Filed under: Uncategorized — Tags: , , , , , , — admin @ 2014/07/02 07:21

MS VC++ 2012 is installed, development environment is fine tuned with all necessary libraries, QT and boost are no longer complaining about missing components etc… Then you find out that your application is not working in Windows XP. You see only a terse dialog with a message program.exe is not a valid Win32 application. (more…)

Elecrow PCB prototyping

Filed under: Uncategorized — Tags: , , , , , — admin @ 2014/03/23 23:20

Another quick PCB manufacturer review. This time it was an audioohmmeter sent to Elecrow PCB service. Price was $9.90 + $3.72 shipment. I ordered 5 pieces, got 10. Nice! Overall quality looks very good. Lets see it in details. (more…)

Xubuntu upgrade to 13.10 with troubles

Filed under: Uncategorized — Tags: , , , , , — admin @ 2014/03/18 19:15

New (X)Ubuntu switched to systemd and it brought new challenges with upgrading. I use Xubuntu fork but this might affect others as well. I can’t turn off or hibernate the computer. Even after logout there are no buttons for powering off. And I can’t access NetworkManager. (more…)

Windows 8 SDK

Filed under: Uncategorized — Tags: , , , , , , , , , — admin @ 2014/03/08 01:14

MS Visual C++ 2012 SDK might be already mature enough and lots of libraries are being built with this version these days. Its support for C++11 is also supposedly better so lets try it. This is not a review. Only a simple “how to” about installing and troubleshooting. (more…)

OSH Park PCB prototyping

Filed under: Uncategorized — Tags: , , , , , , , , — admin @ 2014/03/01 14:48

I’ve sent a little LED dimmer PCB to OSH Park service. For 4.6 USD it is a great deal. Vias are 0.8 mm in diameter and 0.3 mm drill. SMD components are 0805. The result? Very good. (more…)

Single button push on push off

Filed under: Uncategorized — Tags: , , , , — admin @ 2014/02/02 16:11

Turning circuits on and off by a toggle switch is so old school. Today devices have a single push button and that button can power up or down the device with a single push without much force applied. (more…)

Transistor power dissipation

How to choose the right switching transistor for my application? It must withstand the current, generated heat and applied voltages. Current and voltage does not pose any problem. You have to use some calculations about the power dissipation. (more…)

Don’t be afraid of a long learning curve

Filed under: Uncategorized — Tags: , , , , — admin @ 2014/01/31 00:12

This post is a little bit different. It does not contain any how-to, know-how or data. It is a little thought that I came to after a recent experience. (more…)

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