Tag Archives: tools

November 29, 2017 · 7:52 pm

Tenma DC 72-2540 graphical interface

I was planning to write a post of how to write a simple GTK application indicator. But there’s a really good explanation already from
candidtim that you can follow. It is actually very well explained.

What I’ll do instead is just drop here an update to the Tenma DC 72-2540 command line tool that can be found in the tenma-serial github repo. It is the gtkIndicator.py script, that more or less looks like this:

And note that you can create a small .desktop file, so your desktop environment knows about it 😀

vim ~/.local/share/applications/TenmaDcPower.desktop

[Desktop Entry]
Name=Tenma DC power supply
Comment=
Exec=/usr/bin/tenmaSer/gtkIndicator.py
Icon=/usr/bin/tenmaSer/logo.png
Terminal=false
Type=Application
StartupNotify=true

Some Links

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October 31, 2017 · 5:04 pm

Tenma72-2540 Linux serial control

I daily work with a DC power supply to run different boards and prototypes. One day, plugging in the power supply I realized there was a USB and a COM port!
It is not correct from a tinkerer’s to avoid this option. So this day ended up with a small Python program (also golang, but that’s a different story) to use this feature.

more

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May 17, 2017 · 10:42 am

Vectorize an image using Inkscape

And now, for something completely different.

For a coming event we want to use logos from different bars and cafes around the block. The idea is to do a little of propaganda: banners, t-shirts, mugs all the way!

Some bars have their fancy logos already as a vector image. Other ones don’t even have a computer where the logo is stored.

In this post we’ll see how to create a vector file from a pixmap (jpg, png, whatever raster format that Inkscape can open). With a couple of examples, a graceful one and a crazy one.

There’s a lot of manuals online for this, an in-depth one with good examples can be found in Tavmjong Bah’s website.

vectorizing!

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May 2, 2016 · 2:21 pm

Create a module with XCircuit

xcicon_sm

I discovered XCircuit when looking for an easy and quick way to generate a schematic.
Since I am not going to simulate it, it would be enough to have a vector design program like Inkscape, but it’s never too late to learn a tool that may prove useful in the future.

There are other bigger, better, stronger EDA tools: Geda, KiCAD, EagleCAD… but I settled for something designed for publications.

(…)program for drawing publishable-quality electrical circuit schematic diagrams and related figures(…)
— XCircuit website

In this post you’ll find a quick overview of XCircuit, and how to create a module with it.

continue please

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November 20, 2014 · 3:45 pm

A better way to Jenkins

jenkins_logo

Jump around, Jump around. No maps this time, but Continuous Integration. My current work involves a lot of a software piece called Jenkins. I’ve been swimming with it the last 2 months and I feel compelled to share how we changed our ways.

This post is an overview guide on how to configure Jenkins to generate the jobs that are defined in a git repo.

let’s integrate continuously

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April 1, 2012 · 9:37 am

Emerillon

Some days ago while procastinating around I discovered a little software jewel:
Emerillon

Emerillon is named after the Émérillon, one of the three boats that visited New France under Jacques Cartier’s command in 1535. Émérillon is also French for Merlin Falcons.
— Emerillon Website

How Cool is that?


uppercanadahistory.ca

1541: Cartier's Three Ships Grand Heremine, Petite Hermine, & Emerillon


hjoefuhrmanphoto.com

Émerillon - Merlin Falcon


That Cool!

But we are not interested in the name (though I like it a lot), the software is neat.
Emerillon is a map viewer for Gnome desktop environment. It features OpenStreetMap layers and a small, easy to use interface.
The feature list is not very long (not as long as Google Earth) but it’s a nice start for a good map viewer.

The beautiful part is that it features a plugin system (currently with 4 basic plugins) that eases extensibility:

  • Search bar (using GeoNames)
  • Placemarks
  • Map Coordinates (window center latitude,longitude)
  • Link Generator (for ggmap, bing, osm)

Screens!

There’s a lot of room for improvement, but it seems that the bugzilla page of the project is somewhat dead. The last commit (translation to Japanese) is from a week ago, but the last development commit dates from 2011-11-11.

It’s a shame.

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