Tiny-Serial

A minimal (~140 LOC) serial port monitor for embedded development. Built as a lightweight alternative to screen/minicom for quick Arduino and microcontroller debugging.

Features

• Color-coded output: green for incoming serial data, white for user input
• Non-blocking bidirectional communication
• Graceful shutdown on Ctrl+C or 'q' key
• Zero external dependencies (C standard library + POSIX only)
• Strict ANSI C89 compliance

Building

Tested on Linux and macOS. Requires GCC and standard POSIX headers.

make
make install  # Optional: install to /usr/local/bin

Usage

tiny-serial /dev/ttyUSB0          # Default 9600 baud
tiny-serial /dev/ttyACM0 115200   # Custom baud rate

Press q to exit, or Ctrl+C for immediate shutdown.

Uninstalling

make uninstall