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Gaze-Tracking Robot Eye with LDR & Servo

Interactive robotic eye that follows light sources using a Light Sensor and Servo Motor, making it appear to be “watching” the surroundings.

How Users Will Interact

User moves a light source (flashlight, phone, or sunlight shifts).
The robotic eye smoothly follows the light.
If the light moves away, the eye returns to a neutral position.

Users Experience

Feels like the eye is watching them.
Immediate reaction—eye moves naturally, no lag.
Simple cause-and-effect interaction (light → movement).

Components Needed

• 3D-Printed Robot Eye V3
• Servo Motor (SG90)
• LDR (Light Sensor)
• 10KΩ Resistor