BeagleBone Black UARTs Unlike the BeagleBone White, the BeagleBone Black has no built-in serial to USB connection. This was one of the several cost saving measures taken in order to get the per-unit price down to $45 USD. The serial…
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Using BeagleBone Black GPIOs
To control digital input / outputs for the BeagleBone Black, you can use the facilities exposed by the kernel in the /sys/class/gpio directory. Note that the BeagleBone White pinouts are different from the BeagleBone Black. Also note that the GPIOs…
Posted in BeagleBone Black, HowTo
Expanding Linux Partitions: Part 2 of 2
As shown in Part 1 of this article, extracting Linux from a pre-made .img file can result in unused space at the end of the uSD card. Depending on the size of the uSD card, this could leave a significant…
BeagleBone Black GA Angstrom Image
Before booting the BeagleBone Black for the first time, you may want to snap an image of the unbooted the Angstrom load from NVRAM in its virgin state for future reference. To do this, we need a microSD card to…
Expanding Linux Partitions: Part 1 of 2
When installing Linux by unpacking .tar files into empty boot and root file system partitions, you get to decide how the partitions will lay out. When extracting Linux from a raw image file, the partition table is already defined and…
Node.js for the BeagleBone Black
To run node.js on the BeagleBone, it needs to be compiled from scratch or you can install a precompiled distribution available on the downloads page. While it seems to be more common to cross-compile for the ARM, I find it…