Browsing by Subject "Hardware"

Now showing 1 - 3 of 3
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    The 'bIUreactor': An Open-Source 3D Tissue Research Platform
    (Springer, 2024) Butch, Elizabeth; Prideaux, Matthew; Holland, Mark; Phan, Justin‑Thuy; Trent, Cole; Soon, Victor; Hutchins, Gary; Smith, Lester; Radiology and Imaging Sciences, School of Medicine
    We developed the open-source bIUreactor research platform for studying 3D structured tissues. The versatile and modular platform allows a researcher to generate 3D tissues, culture them with oxygenated perfusion, and provide cyclic loading, all in their own lab (in laboratorium) for an all in cost of $8,000 including 3D printer, printing resin, and electronics. We achieved this by applying a design philosophy that leverages 3D printing, open-source software and hardware, and practical techniques to produce the following: 1. perfusible 3D tissues, 2. a bioreactor chamber for tissue culture, 3. a module for applying cyclic compression, 4. a peristaltic pump for providing oxygenated perfusion to 3D tissues, 5. motor control units, and 6. open-source code for running the control units. By making it widely available for researchers to investigate 3D tissue models and easy for them to use, we intend for the bIUreactor to democratize 3D tissue research, therefore increasing the pace and scale of biomedical research discoveries using 3D tissue models.
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    The Community Food Box IoT Project Report (Senior Design)
    (2024-05-26) Dersch, Hayden; Culpepper, Camren; Kempe, Jason; Weissbach, Robert; Freije, Elizabeth; Pash, Phil
    The Food Box IoT Project is an embedded system designed to assist the non-profit organization, Community Food Box Project (CFBP). CFBP provides 24/7 emergency food access through repurposed newspaper boxes in Indianapolis and Southern Indiana. As the number of served communities grows and the demand for food resources rises, there is a crucial need for a centralized virtual process to manage each food box. CFBP desires to remotely collect data from food boxes and provide users with up-to-date information about each box. Currently, the process is done by individuals conducting visual inspections of each food box and filling them as needed. Food box management is decentralized and lacks predictive data. CFBP provides a website with limited and static food box information. The Food Box IoT Project consists of a hybrid application linked to a microcontroller-sensor system. The software application features an interactive map or list view displaying food box details and locations, with native GPS navigation to each. Users interact by leaving feedback and reporting food boxes as empty. Secure admin accounts grant CFBP special permissions to manage system data. CFBP’s admin accounts can view user feedback, manipulate food box details, and add or delete food boxes. The hardware system uses sensor data collected by a microcontroller to update whether a specific food box is empty or not. The hardware and software systems are connected through an SQL database hosted by a web server. The hardware and software independently exchange data with the database. This architecture supports the deployment of two hardware system prototypes without impacting the functionality of the software system-wide.
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    Themed Entertainment Impact Adapter Senior Design Final Report
    (2023-05-03) Landis, George; Freeh, Ryan; Pash, Phillip
    This project is what is known as the Themed Entertainment Impact Adapter. The issue is to improve a system already in place by creating a new detection system that will allow a guest to interact with set pieces with a physical hit and have communication back to the host. The sponsor, IFM Interactive, is wanting a custom Printed Circuit Board (PCB) that will be housed in a watertight plastic case specified by the sponsor. The device is a detection system that uses an accelerometer to notify another unit that the device detects a spike in the z-axis direction. The specifications that needed to be met that were given by the sponsor are as follows, • Printed circuit board-based design that mounts inside of an IP rated enclosure selected and provided by the customer. • Enclosure penetrations must retain environmental (IP) ratings such that the device could be installed outdoors. • Capable of operating in temperatures up to 80C. • Accept 5VDC for power. • Communicate via half-duplex asynchronous UART over RS-485. • Connect to upstream power and RS-485 data via a single 4 pole M8 connector. • Detects forces applied via internal accelerometer. • Implements communication protocol specified by the customer. • Create ~6 fully working units by April. The test plan is to test on a similar board using an RP2040. We will want to make sure that it sends a signal using UART over RS-485 to a computer emulating the host machine. The results have been successful in testing. There have been issues with the actual device that are minor fixes in the software design than the hardware. The final system will meet the standards from the sponsor. Some recommendations on improvements would be a better implementation of the hardware. Thus, there is just a bit more of editing on the layout. Moving the USB-C to another open way to make way for the port that will be drilled out of the unit to allow for access to power and data to the upstream unit.