pneuCNTRL: a Pneumatic Control System for User Studies on Dynamic, Haptic Inflatables.

We present pneuCNTRL, a system providing a programmable, precise air pressure control in a multi-channel setup with interactive actuated, soft and malleable inflatables which we used for studies on data physicalization. pneuCNTRL is a compact, easy-to-use, and affordable solution that allows researchers to quickly and accurately control shape and haptic properties of inflatable structures in HCI experimental studies. We describe its design and functionality, and summarize our experiences with its use in research and teaching. We also discuss potential benefits of pneuCNTRL, such as its ability to support a wide range of experimental designs and the exploration of novel research questions.