If you spend any significant amount of time doing embedded systems development, you know the drill. You write your firmware, flash the microcontroller, and then… you stare at a serial monitor. For years, the options have been a bit of a mixed bag. You have the classic Arduino IDE Serial Monitor (which is functional but basic), bloated GUI protocol analyzers that eat up RAM, or simple CLI tools like minicom that get the job done but lack modern developer quality-of-life features. As someone who lives in the terminal—relying on tools like Neovim and terminal multiplexers—I wanted a serial monitor that actually fit into a keyboard-driven, modern workflow. I wanted something lightweight, visually clean, and capable of handling complex data without breaking a sweat. So, I built ComChan (Communication Channel). What is ComChan? ComChan is a minimal, blazingly fast serial monitor and plotter built entirely in Rust.…