Decision Workspace
defmt-rtt vs defmt-semihosting vs defmt-bbq
Side-by-side comparison of Rust crates
73
defmt-rtt
stablev1.3.0
Transmit defmt log messages over the RTT (Real-Time Transfer) protocol
48
defmt-semihosting
growingv0.3.0
Transmit defmt log messages over the Cortex-M Semihosting protocol
43
defmt-bbq
growingv0.1.0
A generic bbqueue based transport for defmt log messages
Core Metrics
| defmt-rtt | defmt-semihosting | defmt-bbq | |
|---|---|---|---|
| Health Score | 73 | 48 | 43 |
| Total Downloads | 2.6M | 10.4K | 8.1K |
| 30d Downloads | 120.2K | 743 | 0 |
| Dependents | 542 | 1 | 3 |
| Releases | 13 | 3 | 3 |
| Last Updated | 10d ago | 468d ago | 1669d ago |
| Age | 5y 8m | 1y 7m | 4y 7m |
Health Breakdown
defmt-rtt
Maintenance
16
Quality
21
Community
18
Popularity
8
Documentation
10
defmt-semihosting
Maintenance
6
Quality
15
Community
12
Popularity
5
Documentation
10
defmt-bbq
Maintenance
4
Quality
16
Community
8
Popularity
5
Documentation
10
Technical Details
| defmt-rtt | defmt-semihosting | defmt-bbq | |
|---|---|---|---|
| Version | 1.3.0 | 0.3.0 | 0.1.0 |
| Stable (≥1.0) | ✓ Yes | ✗ No | ✗ No |
| License | MIT OR Apache-2.0 | MIT OR Apache-2.0 | MIT OR Apache-2.0 |
| Dependencies | 2 | 4 | 3 |
| Crate Size | 10KB | 5KB | 13KB |
| Features | 2 | 1 | 1 |
| Yanked % | 0.0% | 0.0% | 0.0% |
| Edition | 2021 | 2021 | 2021 |
| MSRV | — | — | — |
| Owners | 4 (team) | 4 (team) | 1 |
Links
Quick Verdict
- •defmt-rtt leads with a health score of 73/100, but none of the options score above 80.
- •defmt-rtt is depended on by 542 crates — strongest ecosystem trust.
- •⚠ defmt-semihosting, defmt-bbq have not been updated in over a year.
- •defmt-semihosting, defmt-bbq are pre-1.0 — API may change.