Serial Monitor

A Rust 1.77.1 application for reading and displaying serial data from devices like Arduino. Configurations can be passed via the command line to quickly connect and prepare the application for a specific device.

Dependencies

The repo contains a cargo project to build the application. Run cargo build [--release] in the root of the repository to compile an exe. All dependencies are available on github and crates.io:

• egui/eframe for window creation and UI
• serialport-rs to connect to serial ports
• clap for command line parsing
• rfd to create native file dialogs
• image to load the icon
• serde to save/load configs as json
• windows for windows console ctrl

Command line

serial_monitor.exe --config "PATH_TO_CONFIG.JSON" [--connect] [--terminal] [--headless]
--config <CONFIG>   # Path to a json file containing a saved configuration
--connect [-c]      # Try to connect to the port from the configuration
--terminal [-t]     # Enable output to the console/terminal
--headless          # Prevent GUI creation. Requires --config and --connect

Information

• Depending on the device, reading valid data will not be possible immediately after connecting! Change the start mode to wait for a short time or use a specific start message to notify the monitor that your device is ready.
• Data sent by the serial device has to be in ASCII character format. The monitor reads data line by line to separate entries.
• To send multiple values for each entry, values have to be separated by ','
• Variable value counts for entries are not supported!
• Lines that can not be parsed are still printed to the console/terminal
• Plots are read only while data is being read. When paused, the graphs can be dragged with LMB and zoomed with Ctrl + Mouse wheel.
• Pausing will not suspend data reading! Only displaying is paused and the read values are discarded. After continuing, there will be a gap in the displayed data.