The R256 single-axis controller and driver is engineered to feature the same compact size as its predecessor, yet is capable of increased microstepping resolution and higher output current. It is capable of step resolutions ranging from 2× to 256×, and it operates from +12 to 20V dc. Its phase current ranges from 0.1 to 2A peak. It is designed to be programmed via serial port and used as a stand-alone unit with no PC connection required.
The amount of plastic clogging the ocean continues to grow. Some startling, not-so-good news has come out recently about the roles plastic is playing in the ocean, as well as more heartening news about efforts to collect and reuse it.
Some of our culture's most enduring robots appeared in the 80s. The Aliens series produced another evil android, and we saw light robot fare in the form of Short Circuit. Two of the great robots of all time also showed up: The Terminator and RoboCop.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.