litearm-ros2-control (nexform-tech)FirmwareConfidence: Medium

The header says do not stall the update loop past about 100 ms, then admits a stalled USB link can stall it for 1.2 s, and one dropped ACK blocks the controller for up to 1.7 s, about 17 missed cycles, in fail-soft.

Impact Analysis

Persona

Firmware Engineer

Team Size Impact

5x Multiplier

Prototype Delay

3 Days

Est. Annual Cost

$30,000

1 user · 1 month240 min
Rest of team960 min
Rest of year13,200 min

monthly_minutes × 12 × team_multiplier ÷ 60 × $75/hr = $30k/yr

$75/hr assumed rate.

Annual team-minutes decomposed from the reported monthly inputs.

Evidence & Sources

1 Sources

nexform-tech/litearm-ros2-control Issue #21: write() can stall the 100 Hz control loop for ~1.7 s and leave the arm in fail-soft for 1.2 s

github.com

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Analyst Notes

From the Grok pain-radar digests, Oct 27-28 2026 (Oct 27 8:41 AM ET through Oct 28 7:41 AM ET digests plus the Haitch editions). Verified live 2026-10-28: issue/PR/thread read; title and state confirmed.