Mergen-GCSS

Ground Control Station Software for a model satellite. It communicates over Wi-Fi with the Raspberry Pi on board the satellite: it receives telemetry over TCP and displays it in charts, a data table, a map and a 3D model. It also sends commands to the satellite and shows and records the satellite's camera stream.

Written in C# with Windows Forms (.NET Framework 4.7.2). The user interface is in Turkish.

Main window. Values shown are sample data.

Features

• Login and splash screens: username and password login, followed by a splash screen.
• Telemetry reception (TCP server):
  • The server starts with the Başlat (Start) button in the Wi-Fi section; packets are read continuously once the satellite connects.
  • Each packet arrives in binary form: packet number and satellite status, error code, transmission time, 14 measurements, RHRH, IoT data and team number.
• Charts: 9 time charts for pressure 1–2, altitude 1–2, altitude difference, descent rate, temperature, battery voltage and IoT data.
• Data table and logging: every packet is added to the table (newest on top). The table is saved to data.csv on the desktop every 10 seconds.
• Map: the satellite's GPS position is shown with GMap.NET.
• 3D simulation: the satellite model rotates with the received pitch / roll / yaw angles (OpenTK).
• ARAS (fault detection) indicator: five error-code bits; a faulty bit turns red with an audible alert.
• Commands (to the satellite over TCP):
  • Separation: the Kilitle (Lock) and Ayır (Release) buttons send the servo angle of the separation mechanism.
  • Mechanical filtering: the entered command is validated and sent.
• Camera: the MJPEG stream from the satellite's camera is displayed and recorded to the desktop as MP4.

Files

File	Contents
mainForm.cs	Main window, control buttons, map, ARAS
TcpServer.cs	Telemetry server, packet reading
GondericiServer.cs	Sending commands to the satellite
DataGridViewHandler.cs	Data table and CSV logging
ChartHandler.cs	Charts
_3dSim.cs	3D satellite model
Camera.cs	MJPEG camera stream and recording
loginForm.cs, splash.cs	Login and splash screens

Build and run

Requirements:

• Windows 10 / 11
• Visual Studio 2019 or 2022 with the ".NET desktop development" workload (including .NET Framework 4.7.2)
• Internet connection for the map

Steps:

1. Clone the repository:

   git clone https://github.com/mergenmodeluydu/Mergen-GCSS.git
   

2. Open Mergen GCSS.sln in Visual Studio.
3. Restore NuGet packages: right-click the solution → Restore NuGet Packages.
4. Build and run (F5), then log in.
5. With the satellite and the ground station on the same network, press Başlat (Start) in the Wi-Fi section.

The server, command and camera IP addresses are defined in mainForm.cs and Camera.cs; change them to match your network.

Libraries

GMap.NET (map), OpenTK (3D), AForge / Accord (camera and recording), System.Windows.Forms.DataVisualization (charts), MetroFramework and Guna.UI2 (interface).