Debug
Color-coded trace levels, boxed banners and alternating line shading make the line you need stand out in a fast-scrolling log.
Serial terminal for embedded & IoT
Debug, monitor and control your firmware from one window.
Termethos turns a plain serial log into an instrument panel, with color-coded trace levels, a live value dashboard and one-key commands. All of it works with the printf() you already have.
014
19
215
311
47
57
614
712
89
96
1011
118
1215
1311
147
1512
1613
1711
1812
1919
2019
2120
2211
2317
MicroBot Firmware v1.0
5678901
System initialization started
2345
Sensor 1 data lost
Sensor 2 data lost
90123456
An error occurred while initializing device
ms 1 200
ms 2 200
Type a command
Connected: COM3Trace lines: 58
Debug · Monitor · Control
Three jobs, one tool
Most serial terminals only show you bytes. Termethos also lets you watch values and act on them while the log is running.
Monitor
A 24-field live dashboard shows sensor readings and state from your firmware, with the last value that changed highlighted.
Control
Send shell commands with history, bind them to hotkeys or buttons, and script your own commands in JavaScript.
Firmware-friendly markup
Print it. See it.
Add a short prefix to any line you print and Termethos styles it. You don't need ANSI escape tables or a special library.
main.c
// DBG_LogLn() is just printf() + newline
DBG_Log("\x1b[2J"); // clear trace
DBG_LogLn("!#MicroBot Firmware v1.0");
DBG_LogLn("!ISystem initialization started");
DBG_LogLn("!WSensor 1 data lost");
DBG_LogLn("!EError initializing device");
DBG_Log("@{8:21}"); // dashboard field 84
5
6
7
821
9
10
11
MicroBot Firmware v1.0
System initialization started
Sensor 1 data lost
Error initializing device
Features
What makes Termethos different?
Modern design
A modern user interface with a large set of features, built for long debugging sessions.
Simple by default
The UI starts simple and only shows the advanced options when you need them.
Clear trace
Alternating line colors and multi-color support, so important information is hard to miss.
Text boxing
Draw a box around text to highlight a firmware version, a brand name or the start of a boot sequence.
Multi-level traces
Debug, info, warning and error levels each get their own color. You don't need to remember escape codes.
Real-time dashboard
Watch live values update in place. The last value that changed is highlighted so you don't miss an event.
CLI with history
Talk to your firmware's shell or just send commands. History is kept so you type less.
Keyboard shortcuts
Bind commands to hotkeys, so you can stop the motors or reset the MCU with one key.
JavaScript commands
For full flexibility, write your own commands in JavaScript with direct access to the serial port.
Custom baud rates
Add your own baud rates next to the standard ones, for that one IoT device that uses 74880.
Saved connections
Save several connection profiles and open any of them later. Edit them when your setup changes.
Integrated environment
Debugging, monitoring, control and shell access in one window, so you don't juggle several tools.
The real thing
Built for the bench
The dashboard sits on top, the trace in the middle and the command history and input at the bottom, with your own command buttons on the side.
Try it free in simulation mode
Download Termethos and try it at no cost. When you're ready, a $19.99 license enables all features.