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Introduction to Open Source Hardware
Published in Amartya Mukherjee, Nilanjan Dey, Smart Computing with Open Source Platforms, 2019
Amartya Mukherjee, Nilanjan Dey
The term open source hardware [1] is very common today. Open source hardware, also known as open hardware, is basically conceptualized as the electronic hardware or computer component built from some design information that can be copyrighted and licensed without a strict restriction of copyright law [2]. Schematic diagrams, components used, documentation, and the logic design are some of the components of the open source hardware design. Like open source software, the open source hardware may have the source code available for the hardware design; in this case, the source code is the blueprint or a design file that may sometimes be a computer-aided design (CAD) file.
Low-cost automated pipetting system using a single board computer and 3D-printing
Published in Instrumentation Science & Technology, 2023
Naga P. D. Boppana, Robyn A. Snow, Paul S. Simone, Gary L. Emmert, Michael A. Brown
Liquid handling plays a crucial role in numerous laboratories around the world. One of the largest sources of error in analytical methods is due to manual pipetting.[1,2] This is particularly true when delivering ultra-low volumes (micro-liter and nano-liter range) because the experience and technique of the analyst has a direct impact upon experimental variability. Consider a case where drinking water treatment plant (WTP) operators, who typically have minimal analytical training, are conducting routine analytical tests. One of the major sources of variability in the analytical results is often due to the inconsistent manual pipetting between the operators. Having an automated “push button” approach for pipetting would be an attractive choice for operators to help reduce the time required for preparing standard solutions and minimize operator-to-operator variability. The major goal of this research was to develop a low-cost, simple to use liquid delivery system that can dispense microliter volumes accurately and precisely. To meet this goal, an auto pipet was constructed using open-source hardware and software and 3 D-printing technology.
HardOps: utilising the software development toolchain for hardware design
Published in International Journal of Computer Integrated Manufacturing, 2022
Julian Stirling, Kaspar Bumke, Joel Collins, Vimal Dhokia, Richard Bowman
As open hardware is beginning to mature (Wilson Center 2020), so is the legal and regulatory framework that supports it. In 2020, CERN released version 2.0 of its Open Hardware License (CERN 2021a), and DIN released a standardised definition of Open-Source Hardware (DIN 2020). The toolchain and workflow for the open-source hardware development is also beginning to standardise. Distributed version control systems such as Git allow distributed teams to work on their own branch of development rather than relying on a traditional PDM. Git-based developer operations (DevOps) platforms such as GitHub and GitLab are seeing an increasing number of hardware projects, and CERN’s Open Hardware Repository (CERN 2021b) is also an instance of the open-source GitLab platform. While adopting platforms originally designed for managing software has its drawbacks (Stirling et al. 2020), it also unlocks a number of powerful tools for automating time-consuming processes.
A distribute and self-tuning wireless environment monitoring system for buildings based on the Wi-Fi Direct technology
Published in Science and Technology for the Built Environment, 2018
TheFig. 1present work focuses on investigating the possibility of using Wi-Fi Direct to build up large and extendable wireless networks in the building energy management systems to improve the capability and efficiency in information convergence and dissemination. For stationary monitoring systems possessing high real-time requirements and providing services for the control systems in buildings, a fixed power supply can make the system more stable and reduce the cost in manual maintenance, such as battery changing, though the installation flexibility is somehow reduced. The authors have built up an ad hoc and distributed monitoring system based on the Wi-Fi Direct technology and an open-source hardware platform. The initial discussion will focus on structure, working mechanism of the network, and how to rectify the outliers during the acquisition process. The second part will concentrate on the hardware design and software programming for the nodes. The performance of the proposed self-organized mechanism and the distributed rectifying method is evaluated in the third part through both simulation and implementation. It is hoped that this work can provide an extendable and easy-to-use wireless structure that is adequate in communication resources and can be further used for monitoring and controlling purposes in buildings.