Even if your experience does not include writing code to control pneumatic systems, you should still have a good understanding of them, especially if the organization uses pneumatics in its robotic devices. By researching the organization before the interview, you can determine the types of systems their products and devices employ. Once you know this, you can then update your knowledge of these or at least refresh it. This will provide you with the best opportunity for success during the interview.

"Pneumatic systems are driven using compressed gases or fluids. They combined pumps, cylinders, actuators, transmission lines, and other components to move the various parts of a robotic device when commanded to do so. Writing code for these devices is similar to creating programs for electromechanical devices. The only difference is the interface of the system."