Embedded – blog. http://blog.jayway.com Jayway Fri, 24 Aug 2018 10:39:04 +0000 en-US hourly 1 https://wordpress.org/?v=6.1.1 http://blog.jayway.com/wp-content/uploads/2019/02/favicon-1.png Embedded – blog. http://blog.jayway.com 32 32 DIY “Face ID” door lock using AWS Rekognition http://blog.jayway.com/2018/08/24/diy-face-recognition-door-lock/ http://blog.jayway.com/2018/08/24/diy-face-recognition-door-lock/#comments Fri, 24 Aug 2018 10:39:04 +0000 https://blog.jayway.com/?p=19492 DIY “Face ID” I recently started to learn and explore the services at AWS, and the face recognition service seemed particularly interesting. In this post I want to share with you how I managed to build a “Face ID” door lock for the office. I picked up the idea from a colleague who suggested that […]

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]]> http://blog.jayway.com/2018/08/24/diy-face-recognition-door-lock/feed/ 10 White screen problem with Kivy on Raspberry Pi 3 solved http://blog.jayway.com/2016/11/04/white-screen-problem-kivy-raspberry-pi-3-solved/ http://blog.jayway.com/2016/11/04/white-screen-problem-kivy-raspberry-pi-3-solved/#comments Fri, 04 Nov 2016 14:17:50 +0000 https://blog.jayway.com/?p=19012 I have developed an application in Python which uses the Kivy framework to implement the user interface. When I tried my application on my Raspberry Pi 3 the result wasn’t what I expected. The screen just turned white. Now the thing is my Raspberry Pi is running with the screen rotated 90 degrees (i.e. display_rotate=3 […]

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]]> http://blog.jayway.com/2016/11/04/white-screen-problem-kivy-raspberry-pi-3-solved/feed/ 4 Linux From Scratch on Raspberry Pi http://blog.jayway.com/2013/01/20/linux-from-scratch-on-raspberry-pi/ http://blog.jayway.com/2013/01/20/linux-from-scratch-on-raspberry-pi/#comments Sun, 20 Jan 2013 21:34:46 +0000 http://blog.jayway.com/?p=14687 Introduction Linux From Scratch (LFS) is a project providing instructions for building your own Linux system from scratch. If you have not already, I recommend you visiting their homepage http://www.linuxfromscratch.org. LFS has many flavors, and a few of them targets cross-compilation and embedded systems; the CLFS tracks. You will find more information about them here. This […]

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]]> http://blog.jayway.com/2013/01/20/linux-from-scratch-on-raspberry-pi/feed/ 33 A practical approach to the AOSP build system http://blog.jayway.com/2012/10/24/a-practical-approach-to-the-aosp-build-system/ http://blog.jayway.com/2012/10/24/a-practical-approach-to-the-aosp-build-system/#comments Wed, 24 Oct 2012 07:05:51 +0000 http://blog.jayway.com/?p=14205 Introduction The Android open-source project (AOSP) is quite complex and it can be hard to find a good way to get more familiar with it. I’m going to try a practical approach, by adding an Android application to the system image, while at the same time describing the relevant parts of the build process. As […]

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]]> http://blog.jayway.com/2012/10/24/a-practical-approach-to-the-aosp-build-system/feed/ 13 Setting up a chroot for Android platform development http://blog.jayway.com/2012/10/05/setting-up-a-chroot-for-android-platform-development/ http://blog.jayway.com/2012/10/05/setting-up-a-chroot-for-android-platform-development/#comments Fri, 05 Oct 2012 11:03:10 +0000 http://blog.jayway.com/?p=14191 Introduction Since Ubuntu 10.04 is still the only fully supported OS when building the Android source code (according to http://source.android.com/source/initializing.html), you might run into trouble when trying to compile it on an OS with different versions of the tools used in the build process. This happened to me when trying to compile Android ICS (4.0.1_r1) on […]

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]]> http://blog.jayway.com/2012/10/05/setting-up-a-chroot-for-android-platform-development/feed/ 4 Creating a Linux multi-os installation USB-stick http://blog.jayway.com/2012/07/04/creating-a-linux-multi-os-installation-usb-stick/ http://blog.jayway.com/2012/07/04/creating-a-linux-multi-os-installation-usb-stick/#comments Wed, 04 Jul 2012 19:13:13 +0000 http://blog.jayway.com/?p=13912 Introduction If you, like me, are tired of burning the latest version of your favorite Linux distribution to a CD/DVD every time a new version comes out, this multi-os installation stick might solve the problem for you. The main differences between this solution and many other USB installation sticks are: It supports installation of multiple […]

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]]> http://blog.jayway.com/2012/07/04/creating-a-linux-multi-os-installation-usb-stick/feed/ 5 Getting started with Android NDK http://blog.jayway.com/2011/10/13/getting-started-with-android-ndk/ http://blog.jayway.com/2011/10/13/getting-started-with-android-ndk/#comments Thu, 13 Oct 2011 20:15:48 +0000 http://blog.jayway.com/?p=10385 You want to try out the Android NDK? I have gotten a lot of questions about how to setup and work with the NDK and I decided to write down how I do it. My goal with this entry is to gather all the information you need to get started with the Android NDK. I […]

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]]> http://blog.jayway.com/2011/10/13/getting-started-with-android-ndk/feed/ 17 Open links from Text-elements in QtQuick http://blog.jayway.com/2011/10/12/open-links-from-text-elements-in-qtquick/ http://blog.jayway.com/2011/10/12/open-links-from-text-elements-in-qtquick/#comments Wed, 12 Oct 2011 08:42:57 +0000 http://blog.jayway.com/?p=10368 From day one, QtQuick’s Text-element sports opening URL:s in an external application, typically a web page. It’s very easy to use this feature and probably most of you have already been close to or have used it. The only thing that is required is that you set the Text.textFormat property to Text.RichText. Default, textFormat is […]

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]]> http://blog.jayway.com/2011/10/12/open-links-from-text-elements-in-qtquick/feed/ 1 Arduino UNO and the Google ADK – part III http://blog.jayway.com/2011/10/12/arduino-uno-and-the-google-adk-part-iii/ http://blog.jayway.com/2011/10/12/arduino-uno-and-the-google-adk-part-iii/#comments Wed, 12 Oct 2011 06:10:05 +0000 http://blog.jayway.com/?p=9429 Preparing the Arduino The Arduino firmware is a simple program receiving a toggle LED command from the connected Android device. Some parts are taken from the USB Host Shield 2.0 library. Connect the USB Host Shield 2.0 to the Arduino UNO (note that the picture above does not show the connected host shield, but it will […]

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]]> http://blog.jayway.com/2011/10/12/arduino-uno-and-the-google-adk-part-iii/feed/ 3 Arduino UNO and the Google ADK – part II http://blog.jayway.com/2011/10/12/arduino-uno-and-the-google-adk-part-ii/ http://blog.jayway.com/2011/10/12/arduino-uno-and-the-google-adk-part-ii/#comments Wed, 12 Oct 2011 06:05:11 +0000 http://blog.jayway.com/?p=9435 Getting into detail The Android application is a  simple demo that toggles a LED connected to the accessory (the Arduino UNO). The Android code can be found under the java directory in the source git: git clone git://github.com/joekickass/Arduino-Uno-Android-Accessory.git Below I will highlight parts of the code. Most of the information given can be found in the […]

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