Double Servo + Laser Arduino controlled with Qt program

I’m closing in at the end of the project soooo here’s a video of the “I just need to screw these parts together somehow” phase of the hardware.

Arduino + Qt with QextSerialPort

Last time I showed you a little play-around with Arduino and two servos.

Reminder: arduino-double-servo-sketch

Since my aim is to use it to control a webcam built on top of the two servos I have a program with a GUI that can do some image processing. I want to be able to control my “webcam-head” via the GUI so I need to send messages to the Arduino from my Qt (surprised?:D) application. I chose QextSerialPort because a friend of mine got nice experiences with it. I work with Ubuntu but it is also available on Windows systems.

Pop-out widget into a separate window with Qt

Have you ever felt that your application needs an extra window? When the user has 2 screens available how great would it be to separate the widgets you had to push into a tab widget!

I have good news for you: this can be done simply with Qt.

Let’s say we have a window with two widgets. They are quite important so we’d like the user to see both of them if possible. What can we do about it?

Ubuntu 11.04 and OpenCV 2.3 highgui link error

After updating from Ubuntu 10.04 Lucid Lynx where I had every OpenCV projects working I got a strange error when I tried to use any code that used highgui on Ubuntu 11.04 Natty.