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- Publications by researchers, faculty members, staff, and students of DMMMSU.
- A "lakasa" (storage) for the information materials related to La Union, Ilokano, and Iloko.
Recent Submissions
Two-way mobile agricultural spraying machine
(Don Mariano Marcos Memorial State University – Mid La Union Campus, 2026) Ganaden, Jet P.; Fernandez, Dexter B.; Meana, Errol C.; Sibayan, Chanda Mae M.
This study developed a Two-Way Mobile Agricultural Spraying Machine (TWMASM) to address the ergonomic and health risks associated with manual knapsack sprayers used by Filipino farmers. Utilizing a Design and Development Research (DDR) approach, the machine was fabricated with a steel frame, a 16-liter tank, and a six-nozzle boom, powered by both a manual chain-drive and a solar-electric system. Performance trials on a corn plot revealed that the solar-powered mode significantly outperformed the manual mode, achieving a mean field efficiency of 54.92% compared to 36.51% (p < 0.05). Economically, the prototype was constructed for ₱7,100.00 with a Benefit-Cost Ratio of 4.00, indicating high viability. By providing a cost-effective, ergonomic, and efficient alternative, the TWMASM supports the Philippine Farm Mechanization Roadmap while enhancing farmer productivity and safety.
Microcontroller-based vendo charging station
(Don Mariano Marcos Memorial State University - Mid La Union Campus, 2025-05) Ravela, Dexter T.; Acosta, Hannah Grace M.; Andrada, Jake M.; Cabiles, Alijanna Jeame C.; Notarte, Jaspher Kim A.
This study presents the design, development, and evaluation of a coin-operated, microcontroller-based charging station intended to provide a convenient and accessible solution for recharging electronic devices, particularly in areas with frequent power outages or limited access to conventional electricity. The primary objective was to construct a fully functional prototype—termed the Microcontroller-Based Vendo Charging Station—and assess its performance in terms of operational efficiency and charging effectiveness.The system integrates an Arduino Nano microcontroller, relay module, LCD display, and coin slot mechanism, all governed by custom-developed software. The charging process is activated upon coin insertion, with the system managing current flow and monitoring the charging duration accordingly. Experimental testing demonstrated consistent performance, including a rapid coin detection response averaging 0.65 to 0.67 seconds. Within a fixed 15-minute charging cycle, the system delivered notable power increases—approximately 20% for smartphones and 38% for laptops—highlighting its reliability and compatibility with various devices. Results affirm the technical viability of constructing the device using affordable, readily available components and open-source tools. The system consistently met performance expectations, including reliable coin recognition and effective energy delivery, aligning with the intended project timeline. Its promising output further supports its application as a practical, short-duration charging solution for public and emergency-use contexts. In conclusion, the project achieved its core goals and demonstrates potential for broader deployment. Future enhancements may include exploring cost-reduction strategies, adding protective measures for connected devices, conducting long-term durability tests, and collaborating with electronics professionals to refine the system’s safety and robustness.
Microcontroller-based security system with multiple sensors for robbery/theft
(Don Mariano Marcos Memorial State University - Mid La Union Campus, 2025-05) Agadang, Denver S.; Lopez, Jamaica L.; Nisperos, Angela A.; Quindara, Christian Dave L.; Tino, Chester T.
The Microcontroller Based Security System with Multiple Sensors for Robbery/Theft is a security system used to reduce the success rate of robbery/theft for the said establishment, serving as a cost-effective, long-term investment for a profitable business which provides more efficient and faster crime response, leading to unsuccessful robbery/theft related crime and a safer environment. The concept and design of the Microcontroller Based Security System with Multiple Sensors for Robbery/Theft was feasible using a microcontroller. This research used project development type of research design and the Engineering Design Process (EDP) to conceptualized the design and specifications of the security system. The researchers also made revisions after testing and observation until the security system was deemed functional and acceptable. Overall results show that the microcontroller-based security system with multiple sensors for robbery/theft was deemed functional in monitoring the amount of time it activates through the laser sensor, voice recognition, and the switch.
Microcontroller-based seashell crusher-pulverizer machine
(Don Mariano Marcos Memorial State University - Mid La Union Campus, 2025-05) Tamayo, Jhemelyn Mae A.; Balanon, Jazztin Kaveh B.; Donato, Ma. Crystal Jade A.; Garcia, Christopher J.; Lavaro, Sherrine Paula D.
Seashell waste is a widely available byproduct with significant potential for agricultural applications. This study presents the Microcontroller-Based Seashell Crasher-Pulverizer Machine, a microcontroller operated machine designed to crush and pulverize discarded seashells into fine particles. The machine utilizes a motorized crushing mechanism controlled by a microcontroller for precise and efficient operation. Performance tests evaluated the machine's effectiveness in terms throughput capacity, production efficiency, and facilitate versatility. The pulverized seashells were analyzed for potential applications in agriculture, and animal feeds, showcasing their value as sustainable raw materials. Results demonstrate that the seashell crasher pulverizer provides a cost-effective and environmentally friendly solution for managing seashell waste while contributing to resource optimization. This research highlights the potential for simple yet impactful technologies to promote sustainability and waste utilization in various industries.
Microcontroller-based noise detector for libraries
(Don Mariano Marcos Memorial State University - Mid La Union Campus, 2025-05) Enriquez, John Ray C.; Espino, Eden Rose H.; Madayag, Dexter C.; Real, Lyndon C.; Reyes, Marc James R.
This research explores the development and implementation of a microcontroller-based noise detection system specifically designed for library environments. The system is built around the ESP32 microcontroller, chosen for its powerful processing capabilities and integrated wireless communication features, and is programmed using the Arduino IDE to ensure accessibility and flexibility during development. At the core of the noise detection functionality is the KY-037 analog sound sensor, which continuously captures sound intensity from the surrounding environment and sends the corresponding analog signals to the ESP32 for processing. The microcontroller reads these values in real-time and converts them into approximate decibel (dB) levels. A predefined noise threshold, calibrated at around 72 dB through comparative testing with a standard commercial decibel meter, serves as the basis for triggering alerts. When the detected noise level exceeds this threshold, the system immediately initiates a dual-mode alert mechanism designed to catch the attention of library users without creating additional disruption. Visually, the system activates a WS2812B 8x36 RGB LED matrix to display a vivid “Keep Silence” warning message, making it easy for users to recognize that their noise level is inappropriate. At the same time, the ESP32 communicates with a DFPlayer Mini audio module to play a pre-recorded voice message or sound alert. The audio signal is routed through a PAM8403 digital amplifier to ensure sufficient volume and clarity, and it is broadcast using a compact speaker integrated into the system. The program is structured to include continuous monitoring within the main loop, along with conditional statements that process input and trigger responses only when necessary. To improve reliability, the code also incorporates basic debounce and noise-filtering logic to prevent false triggers from short or non disruptive sounds. Throughout the development process, rigorous testing and calibration were conducted to fine-tune sensitivity and validate the accuracy of the system’s response. Results demonstrate that the system reliably detects excessive noise and delivers effective, non-invasive reminders to users, significantly reducing the need for manual intervention by library staff. In essence, this smart noise detection system provides an automated, low-cost, and efficient solution to promote discipline, enhance user experience, and preserve the quiet, studious atmosphere essential to library environments. Future improvements may include integrating data logging features, enabling remote monitoring through Wi-Fi or Bluetooth, and adapting the system to various public spaces beyond libraries.