Teensy 4.1–based simulator of the REAL CubeSat instrument, enabling testing without needing physical flight hardware.
This project implements an instrument simulator that emulates the behavior and data flow of the REAL CubeSat instrument. Uses the Teensy 4.1 microcontroller, to fake packet-based communication with the On-Board Computer (OBC) over serial, following CCSDS telemetry standards.
| Feature | Description |
|---|---|
| Command Interface | Parses and CCSDS command packets from the OBC |
| CRC Validation | Implements 16-bit CCITT CRC with lookup optimization |
| Heartbeat System | Periodic “1 PPS” telemetry update and internal timekeeping |
| State Machine Architecture | FSM-based packet reception and handling |
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Developed at the Space Science Engineering Lab at Montana State University.
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Authors:
Tyler Holliday, Connor Parrott, Andrew Johnson, Emma Stensland, Nevin Leh