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Sound Reacting Star Wars AT-ST Bandai Model

Build a motorized AT-ST model that detects sound and turns its head toward the source using Arduino, servo motors, and audio sensors.

  • Arduino
  • Advanced
  • 3 to 5 hours
  • 3 steps

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You'll need

Prices from vilros.com. Tax and shipping at checkout.

Before you start, you'll need

  • Bandai AT-ST model kit
  • Arduino Uno or Nano
  • Sound sensor module
  • Servo motors (2-3 for head movement)

Assemble the AT-ST model

About 60 minutes

Build the Bandai model with modifications for motorization.

  1. Assemble the AT-ST following kit instructions
  2. Leave head assembly loose for servo attachment

You should see

Model is assembled with space for electronics.

Install servo motors

About 45 minutes

Mount servos to control head rotation and tilt.

  1. Attach pan servo for horizontal head rotation
  2. Secure servo horns to head assembly

You should see

Head moves smoothly when servos are manually rotated.

Upload sound-tracking code

About 60 minutes

Program Arduino to turn head toward sound sources.

  1. Upload sketch to Arduino
  2. Calibrate sound threshold for your environment

You should see

AT-ST head turns toward sounds when you clap or make noise.

What to do next

Stuck? Contact Vilros Support with your board model and what you see on screen.