Hardware
A battery-powered wearable with an angle sensor, vibration motor and push-button power controller.
All projects
Health and wellness
Posture-coaching wearable
A small wearable that tracks neck and back angle, vibrates to cue better posture, and syncs to a phone app that charts posture over the day and the week.
- Industry
- Health and wellness
- Our role
- Firmware, BLE, power, app integration
- Connectivity
- BLE to phone app
- Cloud
- Synced posture history
Wearable
Angle sensing and vibration cue
Phone app
Receives readings over BLE
Cloud
History stored per user
Charts
Hourly and 7-day posture views
The challenge
The device had to measure posture reliably, cue the wearer at the right moment, stay connected to the phone for hours at a time and survive everyday handling, including loose battery connections.
Firmware
Angle capture and vibration cueing for both neck and back placement, BLE data transfer to the app, and a bootloader for firmware updates.
Cloud and software
A phone app that charts the wearer's angle by the hour and averages each day across the week, with readings synced to a cloud backend.
Key decisions
Client name and confidential details are withheld under NDA.
- Reliable overnight connectionBLE transfer was reworked until the device stayed connected all night and the app charted angles consistently, even after large data transfers.
- Finding the real cause of failuresUnits that died after a battery came loose were traced to the push-button power controller releasing its enable line, not to the firmware.
- One device, two placementsCueing logic was adapted so the same device works on the neck and on the back, where the angle reference is flipped.
- Working with an app teamFirmware builds and test plans were coordinated with an offshore app team, with the client testing each release.
Posture dashboard
A wearer's posture through the day, the cues the device gave, and the averages the app shows for the week.
This dashboard is an illustration built for this site. Every value is generated in your browser; no client data is shown.
Building something similar?
Tell us about your product, from the board to the dashboard. We'll reply with next steps and a rough plan.