Perturb.org - Scott's Geek Stuff

[...] The BeagleBone Black includes four user controllable LEDs: USR0 through USR3. They can be controlled by going to: [...]

[...] The BeagleBone Black has a lot of pins, and a lot of features. Of interest to me are the 65 user controllable [...]

[...] The BeagleBone Black has a barrel connector to power the board if you don't want to use USB. Power input should [...]

[...] You can view the BeagleBone Black boot process, and login via a serial connection (with a TTL adapter) by connecting to the [...]

[...] serial ports on the fly If I load the IDE before plugging in my Arduino it won't see the serial port in the menu. The only way to get it to pick up the port is to restart the IDE. Often my [...]

[...] I needed to debug the raw bytes coming across my serial port from my Arduino. I wrote a simple Perl script to dump the data: serial_debug.pl. [...]

[...] : J1 = Ground J2 = Not connected J3 = Not connected J4 = TXD J5 = RXD J6 = Not connected Your serial port should be set for 8N1, with hardware flow control disabled. I'm using a PL2303HX based USB to [...]

[...] CentOS 7.0 has been released and I gathered the versions of some core packages: Package Version Perl 5.16.3 PHP 5.4.16 Vim 7.4.160 Firefox 24.6.0 Apache 2.4.6 [...]

[...] Fedora 21 looks like it will ship with following package versions: Package Version Perl 5.18.4 PHP 5.6.2 Vim 7.4.475 Firefox 33.0 Apache 2.4.10 [...]

[...] CentOS 6.5 ships with these versions of some core packages: Package Version Perl 5.10.1 (bleh) PHP 5.3.3 Vim 7.2.411 Firefox 31.2.0 Apache 2.2.15 [...]

[...] , but sometimes I do not want to include a large module to extract two arguments. I wrote a quick function that will parse simple command line arguments and give you a hash of their values. [...]

[...] Quick function to get a random element from a Javascript array. [...]

[...] Needed a quick function to remove relative elements from a path. Similar to PHP's realpath but doesn't require the [...]