© 2021 Paul Miailhe, all rights reserved.
Material licensed under → CC BY-NC-SA 4.0
The Marsaut 0 avionics system, designed and developed by Paul Miailhe in 2021, was successfully launched during the C'Space event. This project is licensed under CC BY-NC-SA 4.0.
The avionics system is based on an STM32F303K8 microcontroller, which provides high-performance real-time control for the rocket's systems. It integrates essential sensors, motor drivers, and interface boards to ensure a robust and reliable solution for experimental rocketry.
You can access the CAD designs for all the boards here on GrabCAD.
The electronic architecture of the rocket is divided into the following branches:
- Branch APU (Acquisition Process Unit):
Responsible for acquiring, storing, and transmitting data, equipped with:- MPU6050: A 6-axis gyroscope and accelerometer for attitude measurement.
- BMP280: A barometric pressure sensor for altitude estimation.
-
Branch SEQ (Flight Controller):
The core control board, based on the STM32F303K8, which manages actuators and flight status monitoring.
-
Branch ALIM (Power Supply):
Handles power distribution and monitors the battery's state of charge.
-
Branch MOTOR:
Includes two VNH5019 motor drivers (by STMicroelectronics) for controlling the parachute deployment system.
-
Branch LINK:
Connects all actuators and sensors in the rocket to the avionics for seamless operation.
- Branch HMI (Human-Machine Interface):
Provides a user interface for controlling the system and displaying key information.
- Branch INT_LTS:
Serves as the interface for integrating the LoRa TTGO-T BEAM communication module.
- STM32F303K8:
- ARM Cortex-M3 core with floating-point unit (FPU).
- Provides real-time control and data processing capabilities.
- MPU6050:
- A 6-axis IMU for measuring acceleration and angular velocity.
- Enables precise attitude and motion tracking.
- BMP280:
- A barometric pressure sensor for accurate altitude estimation.
- VNH5019 (by STMicroelectronics):
- High-power motor drivers capable of handling currents up to 12A.
- Used to control the parachute deployment mechanism with precision.
-
Real-time Control:
The STM32F303K8 ensures smooth operation of actuators and sensors. -
Integrated Sensors:
MPU6050 and BMP280 provide reliable data for navigation and altitude tracking. -
High-Performance Motor Control:
The VNH5019 motor drivers ensure precise parachute deployment and safety. -
Seamless Communication:
LoRa TTGO-T BEAM module enables efficient data transmission to ground stations.
You can find the full CAD designs of the avionics system on GrabCAD.
