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Pneumatic coding blocks enable programmability of electronics-free fluidic soft robots.

Sergio Picella1,2, Catharina M van Riet1,3, Johannes T B Overvelde1,2

  • 1Autonomous Matter Department, AMOLF, Amsterdam 1098 XG, Netherlands.

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Researchers developed new pneumatic coding blocks for soft robots, enabling complex behaviors without electronics. This innovation allows autonomous soft grippers to adapt actions based on environmental interactions, mimicking biological systems.

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Area of Science:

  • Robotics
  • Materials Science
  • Biomimetics

Background:

  • Autonomous systems require decision-making based on environmental cues, a challenge for soft robots.
  • Current electronics-free pneumatic soft robots often use digital-like fluidic circuits.
  • Existing approaches can limit the simplicity and autonomy of soft robotic devices.

Purpose of the Study:

  • To design novel pneumatic coding blocks for soft robots.
  • To enable complex, autonomous behaviors in electronics-free soft robotic systems.
  • To provide an alternative design strategy inspired by biological systems.

Main Methods:

  • Developed dedicated pneumatic coding blocks analogous to software control statements (If, If...break, For).
  • Leveraged the analog nature of nonlinear mechanical components for pneumatic logic.
  • Combined these blocks into programs to implement sequences and control robotic behavior.

Main Results:

  • Successfully designed and implemented pneumatic coding blocks for soft robots.
  • Demonstrated control of an autonomous soft gripper with environment-dependent behavior switching.
  • Showcased the ability to create complex sequences using these pneumatic blocks.

Conclusions:

  • Pneumatic coding blocks offer a new paradigm for complex behavior in soft robotics.
  • This approach enhances autonomy and simplicity in electronics-free soft robots.
  • The strategy provides a biomimetic alternative for designing soft robotic functionalities.