Controlling a four-axis robot arm


The comparatively simple example in this article illustrates how to control a small model robot with the PiXtend controller and is suitable, for example, to familiarize students with the basics of robotics. The advantage of using the ST programming language is that almost all industrial controllers understand the resulting code.

The PiXtend V2 -L- is clearly aimed at the professional user in the industry, but its pricing makes it quite suitable for ambitious private projects. Alternatively, the smaller PiXtend boards can also accomplish the job. A selection of other models can be found on the manufacturer's website [5].

The Author

Born in the era of magnetic core ring accumulators and rotary dial phones, Martin Mohr developed a love for everything that flashes at an early age. After studying computer science, the qualified electrician developed Java applications. His old passion for electronics was revived by the Raspberry Pi.

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