Use case
Use MonoPump when one pulse reading is not enough and you want a private history with notes about rest, exercise, time, or measurement conditions.
Product guide
Pulse history and contextMonoPump
Track pulse readings with notes and context when one-off measurements are not enough to understand changes over time.
- Guided capture
- Private history
- Exportable records
Overview
MonoPump Pulse history and context
MonoPump helps turn camera-based pulse estimates into a private local record: guided capture, labels, notes, trends, and exportable reports for personal review.
Related topics
- pulse history
- camera pulse measurement
- private health records
In practice
Where it fits, how it works, and what stays private.
How it works
Follow the camera-guided capture, review the estimate, add context, and compare saved readings or export a report for your own review.
Privacy boundary
Measurements and notes form a local personal record. Export is explicit, and the app is intended for personal tracking rather than medical diagnosis.
MonoPump engineering notes
MonoPump engineering notes
Technical decisions, implementation details, and product context published for MonoPump.
【TECH】Local-first health data design in MonoPump
How MonoPump keeps heart-rate history useful without turning private measurements into cloud data or medical claims.
【TECH】The state machine behind a calm heart-rate measurement
Why MonoPump treats measurement as a staged state machine instead of a single start-and-stop camera action.
【TECH】Counting beats: peak detection and BPM estimation
How MonoPump turns a cleaned PPG waveform into BPM using peak spacing, timestamp intervals, outlier filtering, and EMA smoothing.
【TECH】From camera frames to a heartbeat signal
How a stream of red-channel measurements becomes a usable PPG waveform through timing, detrending, smoothing, and buffering.
【TECH】Detecting whether a finger really covers the camera
How MonoPump uses color ratios, brightness bounds, red dominance, and frame smoothing to decide when measurement can begin.
【TECH】Camera PPG: why a phone camera can see a pulse
A practical explanation of how MonoPump turns camera frames, flash light, and blood-volume changes into a pulse signal.