Skitter Robot

Skitter is the perfect starting point for beginner programmers and robot enthusiasts and expands all the way to advanced users to wish to implement complex sensors and programming.

Below you can find differences between versions and full components lists. Head back to select your skitter here, andymark.com/products/skitter-classroom-robot.

Skitter for Beginners

This version was designed with Purdue University for use in their ME375 class. It is intended for classroom use and designed to work with the NI MyRIO (sold separately). This platform version is a great companion in classrooms looking to teach with the NI MyRIO.

Skitter for Beginners and Intermediate Users

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This version is recommended for anyone looking for a versatile programming test platform. This version includes the Adafruit CRICKIT for Circuit Playground Express and the Circuit Playground Express. With this platform, programming can be done with Microsoft MakeCode block-based, Javascript, Circuit Python, or Arduino IDE to get started.

Skitter for Advanced Users

This is our most customizable option for developers looking to create advanced projects. This version includes the Adafruit CRICKIT FeatherWing and Huzzah32 ESP32 Feather Board. Additional functionality including wireless driving control can be developed and features can be added on utilizing the Feather eco-system "wing" add-ons.

myRIO Components

Below are the individual components you will find within the classroom Skitter.


  • 4 - 4" Cable Tie
  • 1 - Nut Driver, 5.5mm
  • 2 - 19:1 Reduction 12 Volt Gearbotor with Encoder
  • 4 - 1/8" Thick, 1-3/8" ID, 50 O-Ring
  • 1 - Infrared Line Following Sensor
  • 1 - Ultrasonic Sensor
  • 1 - SG90 Micro Servo
  • 1 - Skitter Chassis
  • 1 - 12 Volt 3000 mAh Lithium-Ion Battery
  • 1 - Skitter Hardware Kit
  • 1 - 4-pin Female to Female Ultrasonic Cable
  • 1 - 5/8" Ball bearing Caster
  • 2 - 1 5/8" Diameter 3D Printed Wheels
  • 1 - Line Follower Sensor Cable
  • 1 - myRIO Connector Ribbon Cable
  • 1 - On-Off Power Cable and Board
  • 1 - Reversible Phillips and Flat Head Screwdriver

ESP32 - Skitter Components

Below are the individual components you will find within the Feather Skitter.


  • Components included with myRIO Skitter Classroom Robot minus myRio cabling and components
  • 3 - Level Shifter
  • 1 - Assortment of Hardware
  • 1 - ESP32 Feather Board
  • 1 - Crickit FeatherWing Controller Board
  • 1 - ESP32 Feather Board with Stacking Headers

Circuit Playground Express- Skitter Components

Below are the individual components you will find within the development Skitter.


  • Components included with myRIO Skitter Classroom Robot minus myRio cabling and components
  • 3 - Level Shifters
  • 1 - Critter Interface Board
  • 1 - Assortment of Hardware
  • 1 - Circuit Playground Express
  • 1 - Crickit for Circuit Playground Express
  • 1 - Mini Alligator Clip Cable Set

Features and Specifications

  • Platform designed for multiple controller options:
    • Skitter for NI myRIO Controller (MyRIO Not Included) - am-4350a 
    • Skitter with HUZZAH32 ESP32 Feather Board - am-4429
    • Skitter with Circuit Playground Express - am-4430
  • Hard-Anodized Sheet Metal Frame
    • 0.09" Thick Aluminum
  • Robust Drive Motors
    • 12v DC gearmotors with hall effect encoders
    • Output Free Speed: 245 rpm
    • Rated torque: 5.7 oz-in (410 g-cm)
    • Max current draw: 0.95 amps
    • Max power output: 2.5 Watts at 45% efficiency 
  • Motor Controller Output
    • x2 Channel
    • 12v DC
    • 3.6 Amp Peak Current
  • Multiple Servo Outputs
    • x1 Servo
    • x2 Additional servos can be added
  • Lithium-ion Battery
    • 12v, 3000mAh
  • Multiple Sensor Inputs
    • Ultrasonic (x1)
    • Touch Sensor (x1)
    • Line Following Sensor (x1) 
    • Drive Encoders (x2), Hall Effect, with 3 counts/rev on the motor, 735 counts/rev on the output shaft
  • Included Tools for Assembly 
    • x1 Phillips Head Screw Driver
    • x1 5.5mm Nut Driver
  • Overall size
    • 7.05" Long (179mm)
    • 6.54" Wide (166mm)
    • 2.42" Tall (62mm) without myRIO
    • 2.86" tall (73mm) with myRIO
  • Ground Clearance
    • 3/8" (9.4mm)
  • Weight
    • Under 2 Pounds
  • Performance
    • Speed: 21 inches/sec
    • Acceleration: 60 inches/sec^2
    • Rotation rate: 410 degrees/sec
    • Angular acceleration rate: 2,000 degrees/sec^2

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