Open .pde files with Arduino IDE in Linux
After I installed the Arduino IDE I found out that I could not run "arduino test.pde" to open an existing sketch. The previous command would just open a blank sketch.
To fix this problem you have to edit the Arduino startup script, which in my case is located at "/usr/share/arduino/arduino". The last line of this file looks like this:
java -Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel processing.app.Base
and it needs to be changed to this:
java -Dswing.defaultlaf=com.sun.java.swing.plaf.gtk.GTKLookAndFeel processing.app.Base "$*"
Finally I had to change my "/usr/bin/arduino" from:
/usr/share/arduino/arduino
to
/usr/share/arduino/arduino "$*"
Now you should be able to associate .pde files with the Arduino IDE and have them automatically open.
Arduino Basics 1: LEDs
I am going to start with some very simple programs, but hopefully build and program them in such a way that they can easily be reused in larger programs without too much modification.
LEDs are used in many applications and can be very useful when debugging. Turning on an LED can be compared to writing "Hello World" or some other test statement to the terminal window. LEDs have a positive end (the longer one) and a negative end (shorter). When hooking up a circuit make sure that the LED has the correct orientation.
C++ Grid Class
This is a basic grid class which I plan to use for some simple games including a rewrite of my Connect Four game. This grid class uses std::vector for easy memory management.
Accessors:
- height()
- width()
- retrieve(n, m)
- print()
Mutalators:
- insert(n, m, x)
- resize(n, m)
Arduino
I am now an owner of an Arduino Uno. I also purchased several 'value packs' of various components, LEDs and some basic sensors. I was able to find some buttons and switches and motors laying around and in old electronics.
I have a good theoretical knowledge of circuits, and after two classes on them I can tell you the voltage or current at any point in almost any circuit. I know opamps and transistors like the back of my hand, but designing a circuit from scratch was surprisingly never covered.
After some quick reading and installing the software it seems like the Arduino programming language is heavily based off of C/C++ which is good because I don't have to relearn any syntax.
Hopefully I will start posting some basic accomplishments soon such as turning on LEDs.
Data Structures and Algorithms
I just finished taking a data structures and algorithms course which was very cool and broadened my perspective when it comes to programming. Although we only got to program a small portion of the things we learned about, I feel that what I did implement is clean and efficient.
- Single Linked List with Single Node
- Undo Redo Stack (uses Single Linked List and Single Node)
- Double Linked List with Double Node
- Dynamic Queue as Array
- B Tree with B Tree Node
- Dynamic Double Hash Table
- Weighted Graph (can find the minimum spanning tree)
Mouse Jail for Twinview
This program will trap the mouse within certain screen coordinates. It can keep your mouse in 1 screen when trying to play games so it doesn't mess up side scrolling and eliminates the possibility of clicking on other windows which makes the game lose focus. The original version of MouseJail was designed to work with xinerama, but I modified it so that it works with nVidia's twinview. I personally use Openbox and it works great.
To use, just compile it and then run it like this (use appropriate coordinates):
./Jail 0 0 1920 1080
Note that the mouse might jump outside those boundaries for quick moments so use:
./Jail 0 0 1917 1080
Connect Four
This is a console Connect Four game. This initial release only has support for a two player game, but I plan to add AI soon. Once I become more comfortable with C++ I will try to add graphics.
DI.FM Radio Player
This project is basically a port of Manadar's windows edition.
All the streams and stream names can be customized easily via a ~/.streams file, and the amount you wish to have is flexible. You are also not limited to di.fm streams, any stream should work.
This project is still in an alpha stage. As of now:
-Recording doesn't work.
-Statusbar text doesn't scroll.
-The ~/.streams file is in the same directory as the script to make testing easier.
If you find a bug, problem, something you would like to have or a way to fix the above problems please let me know.
Python, wxpython and gstreamer are required.
Netcfg Auto Connect
This script scans to see what networks are available, then checks if any of the networks are ones you want to auto connect to. If this is the case it will connect to the approperiate netcfg profile.
I start this script in my /etc/rc.local. Pick what is best for your distribution.
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