Neck Tracker — LEFT

3s countdown → 2s steady baseline → 3s ready → 10s session — records LEFT peaks ≥ 10°

Serve from http://localhost or https://. Allow camera permission.

Movement: LEFT

Real-time angle (°)

0.0

Positive = left

Session time

Remaining seconds

Recorded events

Peaks ≥ 10°

Status

idle

Live state

Session progress

Normal reference

Rotation reference: 80°

Tip: keep face centered during baseline. If baseline fails, improve lighting or move closer.