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Open-hardware wireless controller and 3D-printed pumps for efficient liquid manipulation.

Alain Gervasi1, Pierre Cardol2, Patrick E Meyer3

  • 1Genetics and Physiology of Microalgae, InBios/Phytosystems, BotaBotLab, Institut de Botanique, University of Liège, Belgium.

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Summary
This summary is machine-generated.

Researchers developed a new wireless controller for precise liquid handling in biological experiments. This adaptable, low-cost system uses 3D-printed pumps and open-source software for accurate volume control.

Keywords:
3D-PrintingAutomationESP32Liquid handlingMQTTNode-RED

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Area of Science:

  • Biotechnology
  • Laboratory Automation
  • Instrumentation

Background:

  • Precise liquid handling is critical for biological experiments, requiring accurate manipulation of volumes from microliters to liters.
  • Existing systems may lack adaptability, affordability, or remote control capabilities, hindering research efficiency.

Purpose of the Study:

  • To introduce a novel, wireless controller system for versatile liquid handling tasks.
  • To provide a cost-effective, adaptable, and user-friendly solution for research environments.

Main Methods:

  • Development of a wireless controller using widely available electronic components and open-source software.
  • Integration with 3D-printed peristaltic and syringe pumps for precise volume delivery.
  • Implementation of WiFi and MQTT communication protocols for remote control and automation.
  • Utilizing Arduino IDE for microcontroller programming and JSON for configuration management.

Main Results:

  • The system enables precise liquid handling from milliliters to liters with high accuracy (peristaltic pump <1% error, syringe pump microliter accuracy).
  • Remote control over WiFi and automation via MQTT are successfully demonstrated.
  • User-friendly configuration via JSON files allows easy modification, storage, and export of settings.
  • The system is scalable and adaptable with the potential to integrate additional sensors and actuators.

Conclusions:

  • The developed wireless liquid handling system offers a low-cost, adaptable, and repeatable solution for research environments.
  • Its modular design and open-source nature make it suitable for a wide range of liquid manipulation tasks.
  • The system enhances experimental reproducibility and efficiency in scientific research.