Portable USB scanners are very useful. They’re lightweight, easy to use, they can run off the power of the USB port, and most times they work right out of the box on Linux. Most times. It’s not the case of the Trust Flat Scan USB 19200 flatbed scanner. Continue reading “Install Driver for Trust Flat Scan USB 19200 Flatbed Scanner on Ubuntu/Debian”
A few weeks ago I posted an article on how to find your computer’s hidden I2C port. Today I’m going to take it one step further and show you how to actually use it.
After making the Arduino library for the APDS-9930 ambient light and proximity sensor, I decided to port it to Python. In this post I’m going to show you how to use it. Continue reading “Use an APDS-9930 Ambient Light and Proximity Sensor with Python (Raspberry PI/PC)”
If you don’t know what I2C (read “I-squared-C”) is, you may want to check out its Wikipedia page, but in a few words, it’s an amazing protocol that allows communication between one (or more, according to Wikipedia) master devices and one or more slave device, using only 4 wires, two for power supply and two for data. Every slave device has its own unique address that the master can address to request information from the slave.
There are sooo many applications and useful electronic gadgets that use this protocol, like screens and sensors, and if you have an Arduino you might have already used it before without even knowing. Check if your sensor/display/toaster has two pins named SDA and SCL. If it does, it’s probably I2C-compatible, and you might be able to use it with your computer. Continue reading “Find Your Computer’s Hidden I²C Port and Use It!”
I own a bunch of LightScribe-compatible disk burners, and I always buy LightScribe media because I don’t like handwritten labels. LightScribe-labeled disks look better, maybe more professional, even when it’s just a CD with pirated music.
If you are like me, you might have probably noticed that lately everything seems trying to make us not want to use this awesome technology on Ubuntu. The official LightScribe website is unmaintained/has been hacked, so the LightScribe System Software and the LightScribe Simple Labeler can’t be downloaded; the mirrors that used to host the Debian packages for the LaCie 4L Labeler app are down as well; even those users who are brave enough to download the RPM from LaCie’s and use alien to debianize it might have noticed that a Segmentation fault makes our beloved app crash.
However, you don’t have to worry any more! I’ve got a solution here for everybody! Continue reading “How To Burn LightScribe Labels on Latest Versions of Ubuntu (x86 and x64)”
Today I was wondering whether both Kivy and GTK could run together in the same application. So I started looking up online to see if anybody already tried, but I didn’t find anything. Then I thought maybe I could try doing it myself. I was surprised when I managed to do it. All you need to do is run them in a separate thread. That’s it! I thought it wasn’t going to work as GTK is very picky with threads, but it did!
You can do very useful things with both frameworks running. You can, for example, have an Ubuntu AppIndicator connected to your app, create a Unity launcher QuickList, use the music/messaging menu, send notifications, run a separate GTK window, etc. Continue reading “How To Use Both Kivy and GTK in the Same Application”
Some of you probably noticed a little button next to the power button in some HP laptops. How many of you actually found out what it’s for? On Windows, as long as all the drivers are installed, it opens a window that’s not really useful. On Linux (unless somebody has figured out some way to use it), it does nothing. But when the PC is off some sort of thing called QuickLook comes out after about 10 seconds. For who doesn’t know what it’s for, it’s supposed to be combined with Microsoft Outlook. It installs a plug-in into it and emails, calendars and contacts can be viewed quickly even when the PC is off (kinda).
Continue reading “Replace HP QuickLook with a custom bootloader”