2026.2_PI1_Grupo1_Diogo (fcte-pi1)FirmwareConfidence: Medium

Firmware buzzer tones were 2.5 to 3.8 kHz while hardware calibrated the transducer at a 1.2 kHz resonance, so alerts could play much quieter than intended.

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

fcte-pi1/2026.2_PI1_Grupo1_Diogo PR #434: fix(firmware): alinhar as frequências do buzzer à calibração do hardware (docs/7.3)

github.com

→

Analyst Notes

From the Grok pain-radar digests, Oct 28-29 2026 (Oct 28 8:41 AM ET through Oct 29 early-morning Haitch editions). Verified live 2026-10-29: issue/PR read; title and state confirmed.