SerialGCode

Simple console terminal to communicate with a 3D printer board over a serial port. This project was created to assist my other project.

Features

• Send G-code commands interactively.
• Receive responses with timestamps.
• Send raw hex bytes.
• Runtime commands to toggle DTR/RTS lines.
• Automatic prompt after receiving "ok" from printer.

Usage

Run the program via .NET:

dotnet run -- --port COM4 --baud 115200

If port or baud rate is not specified, the program will list available serial ports and ask for user input.

Available Runtime Commands

Command	Description
/help	Show help
/exit	Exit the application
/dtr on/off/pulse	Toggle or pulse DTR line
/rts on/off	Toggle RTS line
/raw HEXBYTES	Send raw bytes in hex (space-separated)

Notes

• Supports Windows and Linux serial ports.
• Prompts appear automatically after receiving ok from the printer firmware.
• Default baud rate: 115200, typical for Marlin-based boards.
• Use /raw to send non-text bytes directly to the board.
• /dtr and /rts commands can control the board’s reset or signal lines in real-time.

License

This project is licensed under the GNU General Public License v3.0 (GPL-3.0). See LICENSE for details.