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libam7xxx-0.1.4 released

by ao2, July 28, 2013
in

Release 0.1.4 of libam7xxx is out, bringing a very nice performance improvement.

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Acer C110 pico projector with BeagleBone Black

by ao2, July 15, 2013
in

I was having a hard time getting the Acer C110 USB pico projector work when connected to the BeagleBone Black, it wasn't showing up on the USB bus at all, no sign of it in the kernel messages and consequently no sign of it in lsusb.

Projecting the Ångström login screen
Cable setup 1
Cable setup 2
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Tweeper: a Twitter to RSS web scraper

by ao2, July 7, 2013
in

Tweeper is a web scraper which extracts the most recent public tweets of a given user from their home page on Twitter.com and formats them in RSS, so the information can be conveniently accessed and collected by a feed reader.

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Misc links: April-May 2013

by ao2, May 29, 2013
in

Some funteresting stuff I've run into in the past months:

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How to trace and visualize POSIX threads

by ao2, April 5, 2013
in

Writing even a simple multi-threaded program is a complex problem, synchronization issues are always around the corner, causing race conditions which can lead to deadlock or resource starvation; and the stress of not being sure that our program works correctly is another component of the complexity.

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crackpop

by ao2, April 3, 2013
in

Some relative of mine forgot the password to access their e-mail account, but they were still remembering the pattern they used to pick it up, and that pattern could be easily represented by a regular expression. They did not have a backup email address to be able to use the password-reset mechanism.

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libam7xxx-0.1.3 released

by ao2, March 18, 2013
in

After almost one year of fixes and new functionalities here is libam7xxx-0.1.3.

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Hacking a USB blood pressure meter

by ao2, March 13, 2013
in

A blood pressure meter with a USB port happened to land into my hands, only Windows was supported for downloading data to a PC, and I wanted to see how the device interacted with the software and try to “free” it so that it could be used elsewhere.

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Run commands as another user, with access to the X display

by ao2, March 5, 2013
in

I've uploaded a simple wrapper around sudo, for executing commands as another user with full access to the X display (GLX works too); I call it xudo.

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Writing Android apps from command line

by ao2, March 4, 2013
in

I've put on-line a brief tutorial of my first experiences with Android apps from the command line interface, IDEs are just not really in my line.

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