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In production

Precision Wearable Motion Tracking & Real-Time Biomechanical Form Analysis

SETZ is an end-to-end wearable hardware and kinematic software pipeline. Body-worn sensor nodes capture movement, a kinematic engine turns it into joint angles, and a learned model judges how well each rep was performed, while you are still mid-set.

Simulated alternating dumbbell curl · 9 segments L 0 · R 0
Left elbow--°
Right elbow--°
Active arm--

Form is hard to see and easy to get wrong

Complex lifts and athletic movements break down in ways a mirror, or even a coach, cannot always catch: a few degrees of knee valgus, a slow drift in trunk angle, uneven tempo under fatigue. Those small errors compound into overuse injuries.

SETZ replaces subjective cues with measurement. It quantifies joint kinematics on every rep, flags deviations as they happen, and keeps a record of how movement quality changes over time.

  • Lower injury risk

    Catches unsafe joint positions and compensations before they become habits.

  • Objective numbers

    Joint angles, velocities and range of motion measured, not estimated by eye.

  • Instant feedback

    Rep-by-rep cues delivered in real time, during the set instead of after it.

  • Works anywhere

    No cameras, no lab, no line of sight. Inertial sensing travels with the athlete.

Technology stack

From raw inertial data to coaching feedback in four layers

Select a layer to see what it does and what it hands to the next one.

Measured, not estimated

Synchronized nodes
9

ESP32 + BNO085 nodes streaming together across the body.

Accuracy per sensor
~2°

Orientation error of each BNO085 sensor.

Wireless latency
<30 ms

Sensor to receiver over the wireless link.

Packet size
159 bytes

Lightweight packets keep airtime short with nine nodes sharing the link.

Let’s talk about the build

SETZ is currently in production and not yet available for purchase. If you want to follow its progress, talk through the hardware, firmware or kinematics, or discuss opportunities, reach out to me directly.