A high-reliability, low-power On-Board Computer (OBC) and Command & Data Handling (C&DH) system for VikramSat, designed for modularity, simplicity, and mission-critical operations.
🚀 Built for student, research, and commercial CubeSat missions.
This repository contains hardware and software for the CubeSat Avionics/OBC/C&DH subsystem, including:
- ⚙️ Real-time telemetry and telecommand handling
- 🧠 Robust on-board computing (fault-tolerant firmware)
- 📡 Interfaces for RF, EPS, ADCS, and payload communication
- 🔒 Watchdog and fault detection mechanisms
Designed with space heritage and mission resilience in mind.
- RPi RP2350 based OBC
- Redundant data buses: I2C, CAN, UART, SPI, USB
- FRAM or MRAM for persistent data storageP
- Telemetry packet generation & error checking (CRC/Checksums)
- Built-in watchdog and brownout recovery
- RTOS support (FreeRTOS)
- EPS (power control, reset logic)
- VikramSat RF subsystem (telecommand & telemetry)
- ADCS (attitude determination feedback/control)
- Payload connector (Camera)
- PCB: 2 layer (FR-4)
- Components:
- MCU: RPi RP2350
- Memory: FRAM/MRAM (TBD)
- Power: LDOs, and TVS/ESD protection
- Connectors: USB / Bus header / Debugger
📁 See /hardware/ for schematics and layout (EasyEDA).
NOTE : The project is under development. Hence all the components and the design may change as per the requirement.
- Written in MicroPython
- RTOS support (FreeRTOS)
- Fault-tolerant state machine
- Packet parsing, command dispatcher, watchdog
📁 See /firmware/ for source code and build instructions.
NOTE : The project is under development and the software is still in its initial stages. The code may change as per the requirement.
We welcome contributors — whether you're improving the firmware, suggesting hardware improvements, or testing!
# Fork, clone, and create your branch
git checkout -b feature/your-feature
MIT — open-source, with mission-critical use in mind.
Developed by Jaydev parmar
Thanks to Hack Club
With contributions from open-source spaceflight communities 🛸
"Space is not the final frontier — it's just the beginning."