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FirstHour: a camera-free bathroom box that alerts family when an older adult falls

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Three student developers built FirstHour in 24 hours at LA Hacks 2026, a camera-free device for bathrooms that detects falls and then manages the first hour of response. An ESP32-S3-BOX-3 and a Raspberry Pi 5 running QNX detect a fall and sound an alarm, then a voice check-in asks the person whether they are okay and treats any reply other than an explicit cancellation as a reason to escalate. The answers feed a short triage record, refined by a StepFun model with a rule-based fallback, and sent to family members by text. The author, who led communications, focused on reliable reply handling, ensuring only one caregiver claims the incident, and keeping the messaging layer from being used to open the door improperly. The project earned second place in two sponsor challenges.

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