klonyyy/MCUViewer
Real-time embedded variable & trace viewer observed · 2026-08-28
Health v2 · maintenance only
86/100
- Activity 89
- Release rhythm 78
- Longevity 93
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: 41
- age_days: 1305
- days_rel: 70
- days_push: 70
- n_releases_24m: 10
Adoption not part of the score
1477 stars · 181 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
MCUViewer (formerly STMViewer) is a GUI debug tool for microcontrollers with a Variable Viewer for real-time reading and logging of global variables over SWD and a Trace Viewer for visualizing SWO trace output. It requires only an STLink or JLink probe and reads variable addresses from the project's ELF file.
Use cases
- visualize embedded variables in real time without adding debug code
- log variable data from an STM32 over SWD
- profile function execution time using SWO trace
- verify timer interrupt frequency on a Cortex-M microcontroller
- plot high-frequency signals from a microcontroller
- debug release builds without optimization interference
When to choose
- you develop STM32 or other Cortex-M firmware and use STLink/JLink
- you need non-intrusive real-time variable inspection via debug interface
- you want SWO trace visualization for profiling or timing analysis
When to avoid
- you need a fully open-source tool going forward, since the project is now closed-source
- your target lacks Cortex-M3/M4/M7/M33 trace peripherals for SWO tracing
- you debug over UART or other non-SWD interfaces
Facets
application · maturity maintenance
monitoring logging data-visualization developer-tools embedded-systems developer-tools hardware windows cross-platform debugger stm32 swd swo-trace stlink jlink embedded-debugging real-time-plotting gui linux desktop
1 source
- readme: https://github.com/klonyyy/MCUViewer · fetched 2026-08-28 · e922a1ffe18d
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| klonyyy/MCUViewer | main | 86 |
For agents
markdown · JSON · MCP: product_card(name="klonyyy/MCUViewer")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem