racecar (gvo27)ECADConfidence: Medium

A power board plan stops on the regulator EN pin: the module pulls EN up to VIN internally, up to 8.4 V on a full 2S pack, so wiring it to a GPIO would push 8.4 V into a 3.3 V pin, and the same regulator powers the ESP32 and Pi 5, so the ESP32 cannot enable it at power-on.

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

gvo27/racecar PR #3: Power distribution board: plan, baseline KiCad schematic, kicad-happy plugin

github.com

→

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.