BRAINSTORM!! by Andrew Miles

Hydration Measurement Device (handheld)

anmiles2 — 2025-10-16 18:46:10 UTC

• Audience: student athletes, hikers, workers in heat
• Value: quick hydration index + water/electrolyte advice
• Edge: multi-sensor (bioimpedance + breath RH/T)

Team Variant – Wrist BIA Band

anmiles2 — 2025-10-16 18:46:28 UTC

• Audience: athletes during practice
• Value: rapid check between drills
• Edge: consistent electrode placement

Clinic/Trainer Toolkit

anmiles2 — 2025-10-16 18:46:57 UTC

• Audience: school nurse, athletic trainer
• Value: baseline tracking + post-exercise checks
• Edge: includes refractometer reference workflow

Other Moonshots

anmiles2 — 2025-10-16 18:47:34 UTC

• Smart bottle cap that estimates intake + prompts
• Locker-room kiosk that logs hydration via touch
• App-only coach dashboard fed by our prototype

Bioimpedance Basics

anmiles2 — 2025-10-16 18:47:52 UTC

• AC injection, complex impedance (magnitude, phase)
• Two-frequency approach (e.g., 50 kHz & 200 kHz)
• Safety: microamp currents; contraindications (implants)
• Skin-electrode contact, temperature compensation

Sensors & Firmware

anmiles2 — 2025-10-16 18:48:37 UTC

• Impedance front-end principles
• RH/Temp sensors; optional flow/CO₂ gating
• Signal conditioning, ADC sampling, BLE data push
• Power: LiPo + charging, battery life estimation

Data Science

anmiles2 — 2025-10-16 18:50:01 UTC

• Feature extraction (|Z|, phase, deltas)
• Calibration vs. references (USG, % body-mass change)
• Simple models: linear/logistic regression
• Evaluation: ROC, AUC, Bland–Altman, repeatability

Human Factors & Ethics

anmiles2 — 2025-10-16 18:50:13 UTC

• Instructions-for-use, hygiene for mouthpieces
• Informed assent/consent for volunteer testing
• Disclaimers: educational, not diagnostic

Comparable Categories

anmiles2 — 2025-10-16 18:50:34 UTC

Smart bottles (track intake, reminders)
• Consumer BIA scales/wearables (fluid status proxies)
• Athletic trainer tools (USG strips/refractometers)
• Industrial heat-stress monitors (WBGT, sweat-loss calculators)

Gaps & Opportunities

anmiles2 — 2025-10-16 18:50:45 UTC

• Few quick checks combining multiple signals
• Limited guidance that adapts to context (heat, effort)
• School-friendly, low-cost, open prototype data

How We Improve

anmiles2 — 2025-10-16 18:50:57 UTC

• Fuse BIA + breath RH/T + temp
• Personalized baselines; simple traffic-light results
• Validated vs. % body-mass change + USG

Budget Draft (edit numbers)

anmiles2 — 2025-10-16 18:51:23 UTC

• ESP32: $8
• Impedance AFE eval: $30–$60
• Sensors (RH/T, optional flow/CO₂): $12–$40
• Electrodes & wiring: $10
• Battery + charger: $12
• Enclosure/3D print: $15
• Validation refractometer: $25–$40
• Est. total: $150–$250

Time Plan (12 weeks sample)

anmiles2 — 2025-10-16 18:52:37 UTC

• W1–2: parts ordering, safety review
• W3–4: electronics bring-up, basic readings
• W5–6: firmware + phone/laptop app
• W7–8: pilot tests, calibration plan
• W9–10: validation sessions (pre/post exercise)
• W11: analysis & model tuning
• W12: final report, poster, demo video

isks & Mitigations

anmiles2 — 2025-10-16 18:52:53 UTC

• Noisy signals → repeated measures, consistent grip
• Electrode inconsistency → jig/handle design
• Low participation → recruit teammates early, consent forms
• Schedule slips → lock milestones, weekly stand-ups

Mentor Roles

anmiles2 — 2025-10-16 18:53:30 UTC

• EE mentor: circuit/safety review
• Data mentor: stats/model validation
• Coach/trainer: protocol design, volunteer access
• Maker mentor: enclosure/ergonomics

Questions for Mentors

anmiles2 — 2025-10-16 18:53:43 UTC

• Safe current limits and frequencies for BIA
• Best electrode materials/placement
• Minimum sample size for ROC/AUC ~0.75 target
• Consent language for school setting

What to Collect & Pin

anmiles2 — 2025-10-16 18:54:09 UTC

• Texts on bioimpedance & hydration
• Human-subjects guidelines for schools
• Sports medicine hydration guidance
• Sensor datasheets (impedance AFE, RH/T)
• Prior student projects; open-source code
We NEED: Add citation on each card: [Author, Title, Year, URL].

Problem Statement v1 (editable)

anmiles2 — 2025-10-16 18:54:25 UTC

Students and workers in heat lack a fast, low-cost way to check hydration on-site. Lab tools (osmolality), bathroom tests (USG), or single-signal devices have limits. Build a handheld multi-sensor device that outputs a Hydration Index and intake guidance, validated against % body-mass change and USG.

Success Criteria

anmiles2 — 2025-10-16 18:54:36 UTC

• Repeatable readings
• Correlation ≥0.6 with % mass change; AUC ≥0.75
• Under $250 BOM; <90s per test; safe and documented
• User guide + validation report + demo video

Purpose of Research

anmiles2 — 2026-01-22 01:31:44 UTC

• Understand real user needs using human-centered design
• Identify unmet problems around UV exposure
• Define markets that benefit most
• Use surveys + mentor feedback to guide design
• Prepare for interviews and design iteration

User Empathy – What People Care About

anmiles2 — 2026-01-22 01:32:12 UTC

• Health matters, but convenience comes first
• Long-term UV harm is underestimated
• Automatic tools are preferred
• Cost and ease of use > advanced features
• Minimal effort solutions are most attractive

User Needs

anmiles2 — 2026-01-22 01:32:36 UTC

• Real-time UV exposure awareness
• Reminders to apply sunscreen or seek shade
• Personalized data (not general weather info)
• Alerts without constant checking
• Easy integration into daily life

Primary Target Market

anmiles2 — 2026-01-22 01:33:04 UTC

• Students and teenagers
• Athletes (soccer, runners, outdoor sports)
• Spend long hours outdoors
• Familiar with wearable tech
• Active during peak UV hours

Secondary Markets

anmiles2 — 2026-01-22 01:33:17 UTC

• Outdoor workers
• Parents monitoring children
• Individuals with sensitive skin
• People with medical risk factors
• Recreational outdoor users

Research Methods – Observe

anmiles2 — 2026-01-22 01:33:36 UTC

• Sunscreen often forgotten during activities
• Temperature used instead of UV Index
• Wearables are common and accepted
• UV exposure is easily overlooked

Research Methods – Engage

anmiles2 — 2026-01-22 01:33:49 UTC

• Consumer surveys conducted
• Peer interviews and discussions
• Mentor feedback sessions
• Design ideas tested informally

Research Methods – Immerse

anmiles2 — 2026-01-22 01:34:02 UTC

• Team experiences outdoor UV exposure
• Manual UV checking is inconvenient
• Cumulative exposure is easy to miss
• Firsthand validation of problem

Customer Survey Insights

anmiles2 — 2026-01-22 01:34:14 UTC

• Most users don’t check UV Index
• Many have experienced sunburn
• Real-time tracking is appealing
• Alerts/reminders strongly preferred
• Comfort and size are critical

Mentor Feedback – Industry

anmiles2 — 2026-01-22 01:34:27 UTC

• Explain product in simple language
• Focus on why it matters
• Physical prototypes are essential
• User-facing features matter most

Mentor Feedback – Design Impact

anmiles2 — 2026-01-22 01:34:40 UTC

• “Fitbit for sun safety” messaging
• Built large-scale cardboard prototype
• Prioritized alerts and guidance
• Improved communication for non-engineers

Stakeholder Feedback (STEM Fund)

anmiles2 — 2026-01-22 01:34:55 UTC

• Project is feasible and meaningful
• Marketing needs improvement
• Move toward real components
• Transition from concept to prototype

Common User Patterns

anmiles2 — 2026-01-22 01:35:12 UTC

• Low awareness of UV exposure
• Desire to protect skin health
• Preference for convenience
• Interest in wearable solutions

Key Differences Among Users

anmiles2 — 2026-01-22 01:35:38 UTC

• Varying skin sensitivity
• Different outdoor exposure levels
• Different willingness to wear devices
• Different alert preferences

Surprising Findings

anmiles2 — 2026-01-22 01:35:54 UTC

• UV risk underestimated on cool/cloudy days
• Cumulative exposure misunderstood
• Alerts valued more than raw data
• Few accurate UV wearables exist

Problems to Solve

anmiles2 — 2026-01-22 01:36:16 UTC

• No personal UV awareness
• Forgotten sunscreen application
• No cumulative UV tracking
• Reliance on inaccurate weather cues
• Poor communication of UV risk

Refined Problem Statement

anmiles2 — 2026-01-22 01:36:31 UTC

People lack an easy, personal way to track real-time and cumulative UV exposure, leading to preventable skin damage and long-term health risks.

Design Guidance from Research

anmiles2 — 2026-01-22 01:36:48 UTC

• Comfortable wrist-worn device
• Automated alerts and reminders
• Simple, clear app interface
• Personalized UV insights
• Minimal user effort

Next Steps

anmiles2 — 2026-01-22 01:37:00 UTC

• Conduct formal customer interviews
• Refine feature wishlist
• Begin electronics prototyping
• Test usability with real users
• Iterate based on feedback