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LabNet hardware control software for the Raspberry Pi.

Alexej Schatz1, York Winter1

  • 1Humboldt Universität, Berlin, Germany.

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Summary
This summary is machine-generated.

LabNet is a C++ software enabling precise, time-critical control of Raspberry Pi hardware for parallel laboratory experiments. It offers sub-millisecond network latencies, outperforming existing tools for efficient experimental automation.

Keywords:
behaviourhardwaremouseneurosciencesoftware

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Area of Science:

  • * Neuroscience
  • * Behavioral Science
  • * Automation Engineering

Background:

  • * Single-board computers like Raspberry Pi offer accessible hardware control for laboratory experiments.
  • * Existing solutions face challenges in managing parallel setups and critical timing.
  • * General-purpose input/output (GPIO) pins and hardware attached on top (HATs) provide extensive sensor and control capabilities.

Purpose of the Study:

  • * To develop a C++ optimized control layer software for Raspberry Pi hardware.
  • * To enable time-critical operations and simplify expansion for laboratory automation.
  • * To provide a robust and performant solution for networked experimental control.

Main Methods:

  • * Implemented LabNet using the actor model for simplified multithreading and modularity.
  • * Utilized Protocol Buffers (Protobuf) for an efficient, language-agnostic messaging protocol.
  • * Optimized for C++ to achieve high performance and low network communication latencies.
  • * Designed to handle simultaneous monitoring and reaction to up to 14 pairs of digital inputs.

Main Results:

  • * Achieved sub-millisecond network communication latencies, outperforming local tools like Bpod, pyControl, and Autopilot.
  • * Demonstrated efficient handling of multiple parallel experimental setups.
  • * Showcased the ability to monitor and react to numerous digital inputs without latency increase.
  • * LabNet is open-source and under continuous development.

Conclusions:

  • * LabNet provides a high-performance, scalable solution for networked hardware control in time-critical laboratory automation.
  • * Its modular design and efficient communication protocol facilitate integration into diverse experimental setups.
  • * Suitable for general automation tasks where the control PC is remotely located.