Animatronic Halloween Crow

Remixed and reworked Animatronic Halloween Crow by andymcculloch and Doctor_JohnSmith, which are themselves remixes from danman who remixed the original model by YahooJAPAN.

Full details, printing instructions, build guide, software, and a PCB available on GitHub: https://github.com/swaziloo/halloween/tree/main

Currently in development: ESP version with ESPHome/Home Assistant control and configuration.

1/2026 modifications

• Changed magnet mounts to glue-in (10x3mm) for better attachment and easier printing
• Reversed and improved feet-to-leg mount pins for stronger and more accurate installation
• Added drainage routes for water infiltration (recommend a waterproof speaker cone for outdoor/wet conditions)
• Slightly enlarged insert holes to reduce push-through
• Added a glue-in Mini-PIR mount with 8006 Fresnel lens (black)
• Software now supports button mode ("Try Me") via sensor pins

10/2025 modifications

• Combined andymcculloch's head/stepper design with Doctor_JohnSmith's tail and feet. 
• Reworked all models to refine and improve the shapes and ensure they print nicely. 
• Filled in the missing beak cutout and made the beak pointier. 
• Incorporated a PIR or LD1020 radar mount behind the right knee. Two body models with/without hole for PIR.
• Created a PCB to drive the model using a RP2040-Zero and multiple power supply options for the heavier components. 
• Moved the speaker mount up to the front and enlarged for a 40mm speaker. 
• Added a mounting rail for the PCB. Added tiedown holes to the feet. 
• Centered the stepper and added contact surfaces. 
• Refined the beak hinge and added an actuator for the connection with the SG90 servo.
• Standardized connections on M3 inserts/screws throughout.
• 14 sound files and animations.

Scolding on Halloween: 

Beak animation test: 

Idle and react: