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ThunderGuppy is the third generation of SSI rocket flight computer. It's hardware was developed in 2019 by Tim Vrakas. ThunderGuppy followed the SkyBass and SpaceSalmon, making the naming scheme O-Fish-ial. ThunderGuppy was the smallest generation of the family to date, and was designed to fit as a standalone module into a standard 2" airframe, much like the Stratrologger and Raven COTS Altimeters.
ThunderGuppy is the third generation of SSI rocket flight computer. It's hardware was developed in 2019 by Tim Vrakas. ThunderGuppy followed the SkyBass and [[SpaceSalmon]], making the naming scheme O-Fish-ial. ThunderGuppy was the smallest generation of the family to date, and was designed to fit as a standalone module into a standard 2" airframe, much like the Stratrologger and Raven COTS Altimeters.
[[File:Guppy Front.jpg|thumb|500px|Front of Thunderguppy v3.1]]
[[File:Guppy Front.jpg|thumb|500px|Front of Thunderguppy v3.1]]
*Dual accelerometer banks, each with high and low range 3-axis sensors. This allows emulation of a high-range gyroscope by indirect measurement of centripetal acceleration.
*Dual accelerometer banks, each with high and low range 3-axis sensors. This allows emulation of a high-range gyroscope by indirect measurement of centripetal acceleration.
The schematics are [https://github.com/stanford-ssi/SpaceSalmon/blob/master/doc/ThunderGuppy_3.0.pdf avialable here]
==== Brains: ====
*SAME51J20A (TQFP 64) CPU
==== Sensors: ====
*2x BMI088 6 Axis Accel/Gyro (up to 24G, 2000deg/s)
*2x BMP388 Pressure/Temperature
*2x ADXL375 3 Axis Accel (up to 200G)
==== Power: ====
*18650 Li-Ion cell
*3.3v buck-boost converter, over 90% efficient
==== Misc: ====
*Micro SD card slot
*PFET squib driver, for E-Match pyrotechnic charges
*CAN Transceiver (not implemented)
*RS-485 Transceiver (not implemented)
The schematics and board designs are [https://github.com/stanford-ssi/ThunderGuppy-EE/ avialable here]
=== Software ===
=== Software ===
ThunderGuppy Inherits its codebase from [[SpaceSalmon]], with several modifications to support Guppy specific hardware features. The code lives here: [https://github.com/stanford-ssi/SpaceSalmon SpaceSalmon] The code can be built by selecting the `guppy` target in PlatformIO. An overview of the codebase was presented within SSI, using the [https://docs.google.com/presentation/d/10tnuvgWhj59NeUBxJNxlRW7EjcLI8pYms1Hf9A7qRLU/edit?usp=sharing slides here]
ThunderGuppy Inherits its codebase from [[SpaceSalmon]], with several modifications to support Guppy specific hardware features. The code lives here: [https://github.com/stanford-ssi/SpaceSalmon SpaceSalmon] The code can be built by selecting the `guppy` target in PlatformIO. An overview of the codebase was presented within SSI, using the [https://docs.google.com/presentation/d/10tnuvgWhj59NeUBxJNxlRW7EjcLI8pYms1Hf9A7qRLU/edit?usp=sharing slides here]