Animatronic Toy

Overview

The animatronic toy is an interactive robotic pet that responds to touch, sound, light, and handling with coordinated motion, expressive lighting, and sampled audio. Behind a sewn synthetic-fur skin and an ABS Shell Half pair, an internal Skeleton Frame carries the motors, controller, and linkage pivots that drive five independent motion axes: head, ears, eyes, mouth, and tail.

A behaviour controller on the Main Control Board reads the sensor suite and sequences motion, sound, and lighting into recognisable moods. Petting wakes the toy, sudden tilts trigger startled reactions, and low ambient light puts it to sleep. Four RGB LED units behind the eyes and cheeks colour each expression.

How it works

Motion comes from the Actuator Group group. Each axis uses a small brushed Gear Motor whose reduction gearbox steps the motor speed down to a usable rate, then a profiled Drive Cam in the cam-and-linkage set converts continuous rotation into the reciprocating travel that blinks an eyelid, flaps an ear, or opens the mouth. Return springs hold each linkage against its cam, and a pair of Hall sensors lets the controller find the home position of the head and jaw drives so motions start and stop cleanly.

Sensing is handled by the Sensor Suite suite. Capacitive Capacitive Touch Sensor pads under the fur detect stroking, an IR proximity sensor notices an approaching hand, a microphone picks up voices and claps, and a MEMS tilt sensor registers being lifted or turned over. The controller fuses these inputs to choose a response.

The Main Control Board ties the system together: the behaviour MCU drives the gear motors through a multi-channel H-bridge, an audio playback IC plays sampled voice and effects through the speaker, and a connector field breaks out to the LEDs, sensors, and power. The Power System system supplies the whole toy from a single rechargeable 18650 cell through spring contacts and a user slide switch, while the Wiring Harness routes power and signals from the board out to every motor, sensor, and LED in the body.