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Prototype validation confirmed successful data transmission and video range over 1 km. Environmental sensors demonstrated responsiveness and accuracy comparable to real meteorological data. Tests also showed the CanSat’s ability to detect CO₂ and tVOC spikes during combustion, validating real-time sensing. Computer vision tests at the ground station using YOLOv11 and MiDaS enabled object detection, depth estimation, and green-area analysis, integrating machine learning into environmental sensing. The project followed the NASA Systems Engineering Handbook (2017) framework: 1.Requirements definition (LASC 2025 rules and Tau Rocket Team vehicle constraints). 2.System modeling through ConOps, FSM, and Functional Block Diagrams. 3.Subsystem development (electronics, power, communication, and structure). 4.Prototyping and validation. Subsystems developed: DATB: environmental and gas sensors (BME280, CCS811) with LoRa transmission. IATB: FPV camera (Caddx Ant Nano) and video transmitter (Eachine TX805). UHI: OLED display, SD card, control buttons, CP2102 interface. MB: ESP32-WROOM-32U microcontroller. PMB: 3S Li-ion battery pack with buck converter and RBF safety system. INTRODUCTION COBEM 2025 9th - 14th November 2025 CURITIBA | PR | BRAZIL 28th International Congress of Mechanical Engineering A CanSat is a miniaturized educational satellite that simulates the main functions of an orbital satellite within a soda can volume. The Áquila CanSat, developed by the Tau Rocket Team (UFSM) for the Latin American Space Challenge (LASC), integrates into a 500 m apogee rocket and performs environmental monitoring using onboard sensors and a real-time FPV video system. The project aims to: Collect and transmit environmental data (temperature, humidity, pressure, CO₂, tVOC). Send real-time analog video to the ground station. Operate autonomously for over 4 hours using a modular architecture. Carls Roberto Bearzi¹, Andrew Santos Machado, Cesar Addis Valverde Salvador, Êmily Bruning, João Pedro Cordeiro Reis, Lucas Gonçalves Teles, Pedro Henrique Justen, Sidney Monteiro Jr. ¹Federal University of Santa Maria (UFSM), Santa Maria, RS, Brazil, carlos.bearzi@acad.ufsm.br Design and Development of the Áquila CanSat: Modular System for Environmental Monitoring and Remote Sensing METHODOLOGY RESULTS AND DISCUSSION CONCLUSIONS The Áquila CanSat represents a successful demonstration of a low- cost, modular, and autonomous platform for atmospheric monitoring and real-time FPV imaging. Designed in full compliance with the LASC 2025 requirements, the system integrates hardware, software, and artificial intelligence–based vision to perform environmental sensing and image processing tasks efficiently. Future developments will focus on PCB manufacturing, structural assembly, and in-flight validation to verify performance under operational conditions. Overall, the project reinforces UFSM’s commitment to advancing academic research in aerospace systems and promoting innovation in rocketry and space engineering. REFERENCES 1.NASA (2017). Systems Engineering Handbook. 2.Redmon et al. (2016). YOLO: Real-time Object Detection. 3.UNISEC (2018). Guidebook for Building a Successful CanSat Project. 4.USINAINFO (2024). Electronic components supplier.Figure 1. System interface map showing power and data connections between CanSat subsystems. Figure 2. Environmental sensor data visualization during a burn test, compared with iPhone forecast values. Figure 3. Output of the onboard computer vision system with YOLO and MiDaS integration at the groundstation.