Field notes
Notes from the workshop.
We are building a sensor that watches a room without watching the person in it. This is where we will write about what we learn — about radar, about silence, and about the engineering tradeoffs that decide whether a fall gets detected at 2 AM.
Coming soon
- How a single mmWave radar measures heartbeat without touching skin.
- The privacy budget of an ambient sensor: what we record, what we discard, and why.
- Designing alerts that don’t cry wolf — false positives are how a monitor loses trust.
- Why we chose ESP32 over a Raspberry Pi for the bedside unit.
- What we learned the first night we left the prototype running in a real bedroom.
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