Need answers to a couple topics! thank you

Beaglebone Black is the most recent incarnation of the Beaglebone open source hardware platform. For less than $50, the board includes Ethernet, graphics processing, 4Gb of nonvolatile storage, and ports supporting USB, HDMI, and Beaglebone's custom I/O add-ons, called "capes". Here's how to run some simple commands to toggle digital I/O on the board!

Here's a rundown of three boards best suited for beginning to intermediate FPGA designers. Some boards cost thousands of dollars, and it’s unrealistic to compare a board of that cost to a board that a hobbyist would likely choose, so this comparison looks at three popular boards in the sub-$90 price point.

The Sabertooth 2x32 motor controller can be used to create a robust drive platform for your next robotic endeavour. This article uses an Arduino Uno to communicate with the Sabertooth 2x32 controller.