KozbenSal

Hardware

1 Devlogs
1 Total hours

I'm building KozbenSal — smart glasses that let paralyzed people control computers and draw using only eye movements. The Problem: People with motor disabilities (ALS, cerebral palsy, spinal injuries) can't use keyboards or mice. Existing eye-tracking solutions cost $10,000+. The Solution: KozbenSal uses a Raspberry Pi + camera to track eye movements in real-time. Users can: - Control mouse cursor by looking - Draw digital art with eyes - Click by blinking - Navigate applications hands-free Tech Stack: - Hardware: Raspberry Pi 4, Pi Camera v2, 3D-printed frame (~$150 total) - Software: OpenCV + MediaPipe for eye tracking - Latency: <100ms response time - Calibration: 9-point personalized setup

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@Ulagat on KozbenSal · 8 days ago

47m 59s logged

DEVLOG #1

Working on KozbenSal - eye-tracking assistive glasses for people with motor disabilities. Today I:

Fixed camera integration - PS3 Eye now captures reliably with DirectShow backend
Redesigned interaction - replaced slow dwell-time with fast blink-based point-to-point drawing
Improved accuracy - added hybrid pupil detection (MediaPipe + CV contour analysis)

System now lets users draw by blinking: first blink places point 1, second blink draws line to point 2. Much faster and more precise than the old system.
Next: user testing, threshold tuning, and adding keyboard mode for typing.