Have you ever dreamed of building your own cluster? Running your own service on your own machines? Now with ARM boards it is possible! You don't need much space or excessive amount of money. In this article you may see how I did it and how to control power of each ARM device separately.
Some time ago I'd an opportunity to play around with BBB. The program presented in this article is collecting data from DS18B20 sensors and stores them in sqlite database. Data are accessible via http (jQuery mobile). I was in hurry while writing the code, so article's content might seem a bit messy. Additionally you may set an alarm, whenever temperature exceeds defined boundaries you'll be notified by email.
If you're are an embedded system beginner and you don't know where to start, this is article for you! After reading, you'll know how to build simple system with yocto/buildroot and how to boot it with qemu.
In this short article I present a C++ library for GPIO handling on BeagleBone Black. It consists of method which translates between pin head names and pin numbers, it also keeps track of export/unexport operations (some of pins are used by default).