Author Archives: rocapal

Send binary data with ICE

Ice provides a communication solution that is simple to understand and easy to program with. Yet, despite its simplicity, Ice is flexible enough to accommodate even the most demanding and mission-critical applications. ICE framework has a few primitive types to … Continue reading

Posted in jderobot | Leave a comment

Asus Xtion: usb soft reset

If you have an Asus Xtion pro live and usually you work under GNU/Linux, perhaps you notice than sometimes you can’t read from Asus Xtion because the usb bus has a problem. Unfortunately the only way to solve this problem is  disconnect … Continue reading

Posted in jderobot, robotica | Leave a comment

Video Surveillance HD: Raspberrypi + PiCam + Android

The video-surveillance field is active many years ago, but there is only products that show image and little else. It’s need to add intelligence to surveillance tasks. We are committed to create technology to care for people and avoid dangerous situations. For this we have created a surveillance … Continue reading

Posted in android, jderobot, rbpi | Leave a comment

RPI Camera Board

It’s a great pleasure have this cool gadget. This is the new RPI Camera Board, the essential part in every RPI project! The Raspberry Pi Camera Module is a custom designed add-on for Raspberry Pi. It attaches to Raspberry Pi by … Continue reading

Posted in jderobot | Leave a comment

Always Parcelable, never Serializable (in Android)

“The final conclusion of Android Team is that Serializable in JAVA is far too slow to satisfy Android’s interprocess-communication requirements. So the team built the Parcelable solution”. Just read this sentence is enough to forget Serializable mechanism. But, I want to show you … Continue reading

Posted in Uncategorized | Leave a comment

WorldTripLogger working!!

We tried the WorldTripLogger one day before MrHicks46 began his world trip on his motorcycle. We have noticed that the vibrations will be a little bit of a problem because some pictures have some wrong lines in the image, but most … Continue reading

Posted in arduino, floss | Leave a comment

Show your RTSP video in Android with VLC

If you have developed an Android app with video streaming, I’m sure you notice that Android use a pre-load of video buffer that fills in 10 seconds. This delay is hardcode in the source code. It’s very hard create a … Continue reading

Posted in android, floss | 3 Comments

Android SDK 64bit and Debian amd64

As you know, it’s possible download the Android SDK for 32 and 64 bits architecture.  If you choose 64bit architecture you notice that some binaries are compiled to 32bit architecture 1 2 3 vega:$/android/sdk/platform-tools$ file aapt aapt: ELF 32-bit LSB … Continue reading

Posted in android | Leave a comment

Polynomial Regression

Polynomial Regression is a form of linear regression model but fits a non-linear relationship between the value X and Y. Basically we have to add new features to the final equation. But what features? It’s simple we can add the … Continue reading

Posted in codigo, floss, libresoft, machine-learning | Leave a comment

Making screencast for Android classes

I need to record some screencast with audio for my online classes of Android. It’s a good way to explain all the topics about programming and android development. Slides, exercises, moodle and screencast is a cool combination to create high-quality … Continue reading

Posted in android, floss, master-sl | Leave a comment