Digital Commons Network^™

Autonomous Terrain-Mapping Robot For Search And Rescue, Soumil Joshi, Seann Calub

Electrical Engineering

This report documents the design, modular testing, and challenges faced while developing an autonomous terrain-mapping robot intended to navigate to a destination waypoint and deliver a small payload for search-and-rescue applications. The system combines a LiDAR sensor, an IMU sensor, and a Raspberry Pi 3B as the onboard processor, and an ESP32 microcontroller interfacing with motor drivers over a four-wheel chassis. A companion mobile application was developed to enable remote control and monitoring of the robot over a WiFi hotspot connection. A lithium-ion battery pack supplies power to all onboard components, with power budgets verified against component datasheets. Testing progresses …

Sunshine Pump: A Trailer-Mounted Solar Powered Water Pump System, Dylan Quan Dinh, Duncan Campbell

Electrical Engineering

The Sunshine Pump is a trailer-mounted, off-grid solar powered water pumping system that delivers approximately 1,000 gallons of water per day from a well of approximately 250 feet total dynamic head to an above-ground storage tank on a rural ranch in Los Osos, California. The system captures solar energy with a 1,500 watt photovoltaic array consisting of four 375 watt panels wired in series, regulates that energy through a maximum power point tracking stage integrated into an all-in-one inverter/charger, stores it in a 4,800 watt-hour LiFePO4 battery, and converts it to 230 volt AC power to drive a 0.75 horsepower …

System Integration And Validation Of The Cal Poly Spacecraft Attitude Dynamics Simulator Mk. Iv, Bricen S. Rigby

Master's Theses

The Cal Poly Spacecraft Attitude Dynamics Simulator (SADS) is an ongoing project that seeks to enable the simulation and validation of sensors, actuators, and control logic related to spacecraft attitude control. The SADS platform rests atop a spher- ical air-bearing device which allows for nearly frictionless rotation in all three axes. The orientation of the platform is controlled by four reaction wheels arranged in a pyramidal configuration. Over the past few years, there have been significant updates to the reaction wheel subsystem, as well as requests for a more capable central com- puter. Therefore, a new system architecture for the …

A Guide To Change Management Using The Sarah Model, Sara Kern, Sarah Barbrow, Sarah Jane Dooley, Sarah E. Lester, Sarah Over

Library Scholarship

Academic libraries are the heart of colleges and universities and, as such, are often centrally involved in and impacted by changes in the greater higher education landscape. For those working in these spaces, familiarity with strategies for managing change is essential to support yourself and others during especially turbulent times. The SARAH model, described below in bullet points with our modifications in brackets, offers a memorable way to understand responses to change, be they our own or others.

S - Shock or Surprise
A – Anger [Anxiety, Alert, or Anticipation]
R – Resistance or Rejection [Re-engagement, or Rationalization]
A - …

Hand Mapping: Our Sexual Health Is (Not) In Our Hands, Laura L. Ellingson

Feminist Pedagogy

This Original Teaching Activity introduces hand mapping, an assignment based on the body mapping method, in the context of a communication and gender studies course. Hand mapping can be adapted to interpersonal, organizational, intercultural, and media courses that address identities, intersectionality, communication, culture, and power in different contexts and mediums. Students outline their hands on paper and artfully embellish them as a visual representation of important takeaways or lessons they learned in the course in response to the prompt, “Our sexual health is (not) in our hands.” Students write an “artist’s statement” explaining meanings of color, symbolism, and design.

Muddying The Waters: Feminist Pedagogy In Uncertain Times, Ivy Mingyase Fofie, Janine Armstrong, Natonya Listach

Feminist Pedagogy

No abstract provided.

Tilly Norwood And The Promise Of Frictionless Creation: Feminist Pedagogy In Ai-Saturated Classrooms, Jill N. Fredenburg

Feminist Pedagogy

This article examines how feminist pedagogy can intervene in AI-saturated classrooms by foregrounding refusal, embodiment, and critical engagement with what I term the muddy algorithms of generative systems. As institutions increasingly normalize AI as an inevitable educational tool, this work challenges that assumption by situating AI within broader structures of power, labor, and extraction. Drawing on classroom experiences in media and communication courses, I use the case of Tilly Norwood, an AI-generated “actress,” to explore how automation reproduces gendered expectations of availability, consent, and creative labor. The concept of muddy algorithms names the opaque, uneven, and value-laden processes through which …

Holding Space: The Labor Of Being The Safe Instructor, Alexis M. Balmer

Feminist Pedagogy

No abstract provided.

Exploring Border Rhetoric, Resistance, And The American Dream: Alexandria Ocasio-Cortez' First House Address, Candice L. Ruh Phd, Cassandra Hightower

Feminist Pedagogy

Border rhetoric can be a “muddy” topic for undergraduates, as borders are often taught as fixed, factual lines that divide places and people. However, from a communication perspective, borders are fluid, symbolic, and socially constructed. This difference between viewing borders as physical dividers versus rhetorical constructs creates a valuable opportunity for students to think critically about how meaning is shaped by borders of land, language, and identity.             This original teaching activity uses Representative Alexandria Ocasio-Cortez’ (D-NY) first House speech—the most-watched C-SPAN video within 12 hours of release (Gajanan, 2019)—as a central case. It invites students to analyze a key moment …

Chronicling Oral History In The Classroom: Preserving Campus Memories And Fostering Connectivity, Madison A. Krall, Kate Sierra

Feminist Pedagogy

In our ever-changing world, projects involving undergraduates, faculty, and staff serve a dual purpose. This oral history assignment aids students in developing the real-world skills of project management, interpersonal communication, interviewing, and digital literacy. We outline how student-created oral histories reflect the underpinnings of feminist pedagogy and contribute to campus connectivity as students learn how people from different intersectional backgrounds can collaborate to benefit their university communities. Using communication research methods and new-age technology, students capture memories of long-standing campus representatives and develop video products for their university archives that bridge past university life, today’s classroom skills, and tomorrow’s potential.

The Pain Of Women And Femmes: A Multi-Session Class Activity On Generative Ai-Technology And Gender Norms, Bethany L. Johnson, Margaret M. Quinlan

Feminist Pedagogy

This unit helps students examine the societal implications of reproductive pain, focusing on healthcare settings and in post–Roe America. Through active listening, media analysis, and interactive research with ChatGPT, students examine how generative AI responds in a neutral tone; however, with additional data and correction, large language models (LLMs) produce more expansive and inclusive responses. Class activities include group discussions, research, and simulations. By using transcripts from the podcast “The Retrievals” and analyzing recent media, students evaluate how LLMs adjust their answers to identical questions, thereby calling into question their design, functionality, and benefits. The unit employs feminist pedagogy to …

Academic Senate - Agenda, 06/02/2026, Academic Senate

Academic Senate Agendas

No abstract provided.

As-1020-26 Resolution To Establish The Cal Poly Maritime Academy Senate Council, Academic Senate Executive Committee

Academic Senate Resolutions

Resolves that the Council’s responsibilities in the attached revision to the Academic Senate bylaws be adopted; and be it further that the Council’s responsibilities be located under the section on Representation in the senate bylaws; and resolves further that the Council Chair should be assigned 3 Weighted Teaching Units per year for their service.

As-1016-26 Resolution On Student Perceptions Of Learning Experience, Ad Hoc Committee On Student Perception Of Teaching Effectiveness

Academic Senate Resolutions

Resolves that Cal Poly Academic Senate endorses the Ad Hoc Committee’s report “Student Perceptions of Learning Experience: Rationale and Broad Principles of Design”; and be it further that the Academic Senate establish a standing committee with broad representation charged with oversight of all student feedback instruments and initiatives—summative, formative, and college or department-originated—including future revisions to the instrument; and further resolves that the Academic Senate forward the companion document “Formative Learning Feedback: A Companion to the Student Perceptions of Learning Experience Report”, prepared by a sub-committee of this Ad Hoc Committee, to the Academic Senate Instruction Committee and to the …

As-1019-26 Resolution On Proposed New Degree Program: Master Of Science In Computer Engineering, Computer Engineering Department

Academic Senate Resolutions

Resolves that the Academic Senate of Cal Poly approves the new degree program for the Master of Science in Computer Engineering for final review by the Chancellor’s Office.

As-1022-26 Resolution On The Modification Of The Academic Senate Bylaws, Academic Senate Executive Committee

Academic Senate Resolutions

Resolves that the bylaws of the Academic Senate be modified as shown on the attached copy.

Breadquest: Enhancing Roguelike Accessibility Through Procedural Generation And Thematic Design, Hahns Pena

Computer Science and Software Engineering

BreadQuest is a top-down roguelike dungeon crawler with a whimsical dessert theme that aims to make the genre more accessible while preserving strategic depth and replayability. Players explore procedurally generated dungeons, fight pastry-themed enemies, and collect bakery-inspired items that support a flavor-elemental combat system, with each run offering unique layouts, encounters, and rewards. Built in Unity with a modular, data-driven architecture, the game uses procedural generation techniques like Binary Space Partitioning, Voronoi diagrams, and Perlin noise to create varied and replayable levels. The project emphasizes approachable gameplay, cultural dessert inspiration, and replayability, with success evaluated through playtesting and player feedback.

Design And Parametric Testing Of A Transimpedance Amplifier For Low-Power Biomedical Applications, Stanlon Tan, William Chung, Brandon Wu

Electrical Engineering

This project developed and evaluated an optical sensing system for detecting changes associated with glucose concentration. The system combined a laser-diode, cuvette sample holder, photodiode, resistive-feedback transimpedance amplifier, high-resolution analog-to-digital converter, and microcontroller. Parametric testing evaluated the effects of input current and feedback resistance on transimpedance gain, output range, and linearity. Firmware was developed to configure the ADC, average repeated conversions, monitor measurement variation, convert raw digital counts into voltage using a source-meter calibration equation, and compare sample measurements with a water reference. A cuvette enclosure maintained alignment between the laser-diode, sample, and photodiode while reducing external optical interference. Testing …

Performance Evaluation Of Roadside Unit-Assisted Wireless Communication For Connected Vehicles, Keyrollos A. Hanna, Ethan M. Nguyen

Electrical Engineering

This project presents the design and implementation of a wireless communication network intended to improve situational awareness between vehicles and reduce the likelihood of multivehicle collisions. Two TurtleBot3 Burger platforms equipped with Raspberry Pi computers were used to simulate vehicles operating within a shared environment. Communication latency and packet loss were evaluated under multiple operating conditions, including direct vehicle-to-vehicle communication and communication assisted by a roadside unit (RSU). The results were analyzed to determine whether the proposed system could transmit warning messages with sufficient speed and reliability for collision prevention applications. The project demonstrates the feasibility of low-cost vehicle communication …

Wildlife Tracking Via Uav&Rf, Nam Ah Nguyen

Electrical Engineering

Animal tracking collars transmit very-high-frequency (VHF) beacon signals so researchers can locate tagged wildlife in terrain where direct visual tracking is difficult. This project develops a radio-frequency (RF) wildlife tracking prototype in which a UAV carries a receiving antenna and receiver over the search area to detect the collar signal and send measurements to a ground station. A transmitter test device was built to emulate a tracking collar. An STM32 microcontroller reads keypad input, controls a digital-to-analog converter (DAC), tunes a voltage-controlled oscillator (VCO) to the selected VHF frequency, and sends the RF signal through an amplifier and antenna. The …

Ugv-Based Vertebrate Pest Deterrence In Vineyards: Vision-Guided Row Patrol And Navigation, Candace Qualls, Karina Wilson, Ben Badhorn

Electrical Engineering

An increase in agricultural demands and the need to sustainably protect crops has created a need for autonomous navigation through a vineyard with a verified pest detection and deterrence system. Developing this solution revealed several challenges. First, the robot must reliably navigate through structured, repetitive vineyard rows. Second, pests must be detected accurately under changing environmental conditions. Lastly, the system must respond with a chosen deterrent within an appropriate time window, all while minimizing false triggers. To address these challenges, this project uses a Husky A200 unmanned ground vehicle equipped with a 2D LiDAR sensor, an Intel RealSense RGB camera, …

Uav Trio Formations For Aerial Pest Deterrence With Vision-Based Bird Monitoring, Benjamin Andrew Ly, Chris Kwon, Christian Joseph Macaranas

Electrical Engineering

No abstract provided.

Portable Food Pasteurization Using Pulsed Electric Fields (Pef), Thomas E. Mcmillan Iii

Electrical Engineering

Foodborne illnesses remain a significant public health concern, motivating continued development of alternative food pasteurization technologies. Pulsed electric field (PEF) treatment is a non-thermal pasteurization method that inactivates microorganisms through electroporation while minimizing thermal degradation of food products. The long-term objective of this project was development of a portable PEF food pasteurization system.

An iterative design approach was used to investigate generation of the high-voltage pulses required for PEF treatment. Multiple pulse forming network topologies were evaluated through simulation, leading to selection of a solid-state Marx generator architecture. A low-voltage five-stage prototype was designed, constructed, and tested to validate the …

Pv Performance Evaluation Study At Cal Poly Solar Farm, Eva Paola D. Calderon

Electrical Engineering

This photovoltaic (PV) system performance evaluation study aims to assess the performance of Cal Poly’s Gold Tree Solar Farm, which produces 4.5MW of solar energy. The evaluation concerns itself with the reliability of the PV system that can be affected by weather conditions, component malfunctions, and degradation of the PV modules. Under the International Energy Agency Photovoltaic Power Systems (IEA-PVPS) Task 13 objectives of reliability and maintenance, this study is necessary to contribute towards improvements in analysis and mitigation strategies for long term usage. Existing operational monitoring data from 2018 to 2025 is the focus timespan, providing real world data …

A Broadband, Dual Polarized Antenna For The Radio Neutrino Observatory In Greenland, Laken Baker

Electrical Engineering

Neutrinos contain information necessary to determine the origins of the universe and cosmic events because they can travel long distances with minimal interaction, preserving information about their cosmic origins. Since neutrinos interact with ice sheets resulting in RF radiation, antennas have been developed to detect RF transmissions.

A compact 'vane structure' (see Fig. 1a) dual-polarized broadband antenna model has been developed, constructed, and characterized according to input reflection coefficient, and co and cross-pol E and H plane radiation patterns using HFSS and Cal Poly San Luis Obispo’s anechoic chamber for the Radio Neutrino Observatory in Greenland (RNO-G) [1]. Its design …

Wireless Communication In Autonomous Vehicles, Kaylie Bao, Nicholas Andrews, Mark Negus

Electrical Engineering

This project focuses on developing and testing a vehicle-to-everything (V2X) communication system using Dedicated Short Range Communications (DSRC) based on the IEEE 802.11p standard. The system uses the NXP i.MX 8XLite V2X Evaluation Kit, which includes the SAF5400 modem for wireless communication in the 5.9 GHz band.

The main goal of this project was to establish reliable communication between two V2X evaluation boards and to verify that custom, user-defined data could be transmitted between them. Through iterative testing, we were able to successfully send and receive custom 802.11 frames using the provided command-line tools and achieve consistent communication between nodes. …

Vlsi Spike Encoder For Spiking Neural Networks With 4-Bit Sar Adc, Jack Marshall, Wyatt Tack, Cameron Young, Ryken Thompson

Electrical Engineering

A spike encoder forms the interface between sampled data, such as image data or a sensor signal, and a spiking neural network by converting numerical input samples into discrete spike events. Unlike conventional artificial neural networks, spiking neural networks use spare, even-driven computation instead of continuous-valued activations. This makes them attractive for low-power embedded systems, biomedical electronics, and other edge applications where energy consumption, physical area, and thermal limits are important design constraints.

This project develops a modular spike encoder architecture for spiking neural networks with selectable support for temporal, rate, multi-spike, and delta encoding. Prior work has shown that …

Lora Radio Propagation & Antenna Design For Freight Trains, Cesar Chavez, Marlon Jennson Hernandez

Electrical Engineering

Freight-train environments present significant challenges for wireless communication due to large metallic structures, varying cargo types, and changing antenna orientations that can degrade radio-frequency propagation. This project evaluated the performance of LoRa-based communication links intended for End-of-Train (EOT) and Head-of-Train (HOT) systems operating at 915 MHz. Field testing was conducted to characterize antenna performance using metrics including received signal strength indicator (RSSI), signal-to-noise ratio (SNR), and communication range. Experimental results showed that antenna polarization and directivity significantly affect communication performance in freight-train environments. Directional antennas provided improved signal strength when properly aligned but experienced performance degradation as antenna orientation changed. …

Cal Poly Mars Rover Battery Management System, Lawrence Nichols, Caleb Michael King, Thomas Anh Khoa To, Angel Soto

Electrical Engineering

The exploration of space has consistently been one of the most expensive endeavors humanities has undertaken in its journey to expand ever further. The PolyRover project aims to not only cheapen that expense through student-based research but also provide a better bang for buck as more unmanned ground vehicles (UGVs) can be utilized on planets in concert. In order to do so, the rovers need a robust, yet compact battery management system that can fit within the wheel well. Our system will consist of six commercially-available 18650 batteries in series, organized in a hexagonal fashion around the motor. The BMS …

Lora Networking Hardware Reference Designs For Terrestrial And Low-Earth-Orbit Communications, Kevin Nottberg

Master's Theses

The work presented here demonstrates a highly robust and tested LoRa networking hardware reference design to meet the needs of the embedded networking company OWL Integrations. The hardware presented integrated a unique combination of features and design choices. The detailing of its unique design is potentially of use to others for use in fielded battery powered terrestrial sensor networking hardware utilizing LoRa. Also, the terrestrial hardware presented is shown to have the capability to support command and control (C2) LoRa links in low-earth orbit beyond terrestrial systems. The design presented has a more U.S. centric component bill-of-materials (BOM), with the …