mowglinext (mowglinext)FirmwareConfidence: Medium

field error on a real robot mower: a firmware protocol bump from 8 to 9 grew the odometry packet from 17 to 19 bytes, the host software rejected every 17-byte packet from the old firmware, wheel telemetry stopped, the update readiness check failed, the update rolled back, and the operator could never reach the new GUI that flashes v9, stranding the robot.

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

mowglinext/mowglinext PR #1021: fix(hardware): keep decoding v8 odometry so the v9 update can be installed

github.com

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Analyst Notes

From the Grok pain-radar digest, Oct 25-26 2026 (Oct 25 daytime to Oct 26 morning slots). Verified live 2026-10-26: issue/PR read on GitHub; title and state confirmed.