Difference between revisions of "Project Strix"
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Project Strix is the avionics system for [[Martlet 4|Martlet IV]]. | Project Strix is the avionics system for [[Martlet 4|Martlet IV]]. Originally conceived as a direct successor to the [[M3 avionics|Martlet III avionics system]], issues stemming from the 2020-21 silicon shortage and backported features from Project Rooster resulted in a completely novel system architecture, and fancy new name. | ||
The system is designed as a single-board flight computer, composed of a single microcontroller linked to several independent subsystems. Each of these systems is explored in detail below, but the key components are: | |||
* The power supply and battery charger | |||
* A dual-output clock distribution system | |||
* A redundant altimeter | |||
* The telemetry radio and GPS system | |||
* Recovery pyrotechnics fire control | |||
* An engine sensor datalogging interface | |||
* Two serial interfaces | |||
* The Central Processor | |||
The boad is controlled by a single STM32F405RGT6 microcontroller. This chip, powered by a 32-bit ARM Cortex-M4, runs the core state machine in addition to several functions pertaining to each subsystem, including altitude estimation, data sampling and logging, telemetry and telecommand handlingm and PSU and Battery Management. | |||
Latest revision as of 17:07, 17 October 2021
Project Strix is the avionics system for Martlet IV. Originally conceived as a direct successor to the Martlet III avionics system, issues stemming from the 2020-21 silicon shortage and backported features from Project Rooster resulted in a completely novel system architecture, and fancy new name.
The system is designed as a single-board flight computer, composed of a single microcontroller linked to several independent subsystems. Each of these systems is explored in detail below, but the key components are:
- The power supply and battery charger
- A dual-output clock distribution system
- A redundant altimeter
- The telemetry radio and GPS system
- Recovery pyrotechnics fire control
- An engine sensor datalogging interface
- Two serial interfaces
- The Central Processor
The boad is controlled by a single STM32F405RGT6 microcontroller. This chip, powered by a 32-bit ARM Cortex-M4, runs the core state machine in addition to several functions pertaining to each subsystem, including altitude estimation, data sampling and logging, telemetry and telecommand handlingm and PSU and Battery Management.