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424 bytes added ,  06:07, 2 July 2021
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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.
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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.
    
[[File:Guppy Front.jpg|thumb|500px|Front of Thunderguppy v3.1]]
 
[[File:Guppy Front.jpg|thumb|500px|Front of Thunderguppy v3.1]]
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*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.
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The schematics are [https://github.com/stanford-ssi/SpaceSalmon/blob/master/doc/ThunderGuppy_3.0.pdf avialable here]
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==== Brains: ====
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*SAME51J20A (TQFP 64) CPU
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==== Sensors: ====
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*2x BMI088 6 Axis Accel/Gyro (up to 24G, 2000deg/s)
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*2x BMP388 Pressure/Temperature
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*2x ADXL375 3 Axis Accel (up to 200G)
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==== Power: ====
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*18650 Li-Ion cell
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*3.3v buck-boost converter, over 90% efficient
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==== Misc: ====
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*Micro SD card slot
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*PFET squib driver, for E-Match pyrotechnic charges
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*CAN Transceiver (not implemented)
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*RS-485 Transceiver (not implemented)
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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]