Introducing ComScope: A Fast & Lightweight Serial Terminal for Embedded Linux Developers

Source: Dev.to

Introduction

If you’ve ever worked on embedded systems, IoT devices, or microcontrollers like Arduino and ESP32 on Linux, you know that a reliable serial terminal is essential. While tools such as minicom, screen, and picocom have served us well, their setup and interfaces can sometimes interrupt the developer flow.

Enter ComScope – a fast, lightweight, and intuitive serial port terminal built specifically for embedded development boards on Linux.

Overview

ComScope is an open‑source, ncurses‑based terminal emulator written entirely in C. It connects you to serial devices with ultra‑low latency (30–50 ms response time) and provides an interactive menu that automatically detects plugged‑in serial ports (e.g., /dev/ttyUSB0, /dev/ttyACM0).

Features

• Auto‑Port Detection – No more hunting for device paths; select ports with arrow keys.
• Lightning Fast – Minimal overhead for highly responsive interactions.
• Built‑in Session Logging – Press Ctrl+A then l to start logging output to a timestamped text file.
• Keyboard‑Driven UI – Fully navigable via standard shortcuts without garbling terminal colors.
• Easy Installation – Available from the Snap Store for all major Linux distributions.

Installation

Snap Package

sudo snap install comscope --devmode
comscope

Note: The --devmode flag is required so the app can access your host’s physical serial ports.

Build from Source

git clone https://github.com/prkshdas/ComScope.git
cd ComScope
make
./ComScope

Roadmap

• Configurable Serial Parameters – UI for changing data bits, parity, and stop bits (currently fixed at 8N1).
• Hex/ASCII View Modes – Helpful for debugging raw binary sensor data.
• Multiple Session Tabs – Connect to several boards (e.g., ESP32 and Arduino) simultaneously.
• Macro & Script Support – Automate repetitive command sequences.
• Auto‑Baud Rate Detection.

Contributing

Your help is welcome, whether you’re a seasoned C developer, a Linux packager, or just want to fix a typo.

• Star and fork the repo
• Pick an issue – Browse the Issues tab or open a new one with a feature request.
• Submit a PR – All pull requests are reviewed, and new ideas are appreciated.
• Test it out – Download from the Snap Store, try it with your hardware, and share feedback.

Let’s build the ultimate modern serial terminal for the Linux embedded community together. Happy tinkering! 🐧⚡