Developer Showcase
Here are the major systems of the project including ground station and satellite
Ground Station
Networking
Radio
A professional and advanced networking system utilizing multi-threading and both UDP and TCP sockets that was designed to handle a massive amount of clients. This networking system allows the streaming of synced audio and video to the clients. This software runs on Linux and was coded in pure C++ to ensure maximum performance.
This radio uses the open source design - OpenLST
Client Tablets (Configuration 1.0)
This is the way people will connect to the ground station as a client. Making tablets were preferred because it adds an extra security layer when it comes to software getting leaked. It is also just a very convenient thing to have because all needed systems can be put inside the device, such as LoRa radio or 4G.
This tablet has high speed 4G and WiFi, and soon to have LoRa radio connectivity all in one device. This device uses a modified Raspberry Pi 3B+ which had all Ethernet and USB ports de-soldered, with the USB ports being wired out so that they can extend to the frame. Because of this, the Pi is extremely slim. There is also an un-interruptable power supply which allows the device to be powered by external charge or battery (10k mAh) at any point without shutting off the device. This device has an estimated battery life of 10-12 hours.
Computer Module
The computer module is in itself considered the ground station. This computer contains a custom 3d printed case with many output ports on the back; these ports are a high power RF, 2 stepper motors for azimuth and elevation, 2 USB, 1 UART for azimuth and elevation detection, and a 36V input port which powers the device. The heart of this device is the Raspberry Pi 5 which controls all other modules such as radio and stepper motor driver.
Azimuth & Elevation Detector
At the heart is the BNO085 absolute rotation sensor using a UART connection. It constantly streams over vector rotation for various purposes which will be utilized on automatic antenna adjustments.
High Altitude & Radio Test Module
Acts as a mock satellite for testing purposes and designed internally to have additional components iteratively added. This module will also act as the high altitude payload which will include a radio.
Currently working on schematics and other conceptual design
Satellite
Electrical Stack Tentative Reference Design
Created for mechanical section so that they have a better idea on how to go about
