STM32 CubeSat OBC – Sensor Telemetry System

A custom-designed STM32-based On-Board Computer (OBC) for CubeSat applications with integrated sensor telemetry and power subsystem.

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🚀 Overview

This project implements a CubeSat OBC built around STM32 microcontroller for:

• Sensor data acquisition
• Telemetry formatting
• Power subsystem integration
• Communication interface support

Designed completely in KiCad.

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🧠 System Architecture

• MCU: STM32
• Power Regulation: 3.3V & 5V rails
• Communication:
  • UART
  • I2C
  • SPI
• Telemetry Output Support

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🔌 Power Subsystem

• Battery input stage
• Voltage regulation
• Protection circuitry
• Filtering and decoupling

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📡 Telemetry

• Sensor data acquisition
• Structured data formatting
• Ready for ground-station transmission

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🖥️ Tools Used

• KiCad (Schematic + PCB)
• MATLAB (Validation)
• Proteus (Simulation)
• OnShape (Mechanical validation)

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📂 Repository Structure

• /Schematic
• /PCB
• /3D_Images
• /Docs

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3D PCB View

Top View

Bottom View

👤 Author

Designed and developed by Harshini
Embedded Systems & PCB Design Enthusiast