pico-quorum (jmcpheron)ECADConfidence: Medium

5 V on the key port's VBUS reached 3V3 through SBU at about 11 mA, enough to half-power the board when off, and the design doc misstated the AMS1117 capacitor requirement, datasheet says 22 uF tantalum.

Impact Analysis

Persona

Electrical 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

jmcpheron/pico-quorum PR #89: picoquorum-key rev B: 5 V on the key port's VBUS no longer reaches 3V3 through SBU

github.com

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Analyst Notes

From the Grok pain-radar digests, Oct 26-27 2026 (Oct 26 12:41 PM ET through Oct 27 7:41 AM ET digests plus the Haitch editions). Verified live 2026-10-27: issue/PR/thread read; title and state confirmed.