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Hands-on Robotics Workshop

INSTRUCTORS: DR. FATH,

 COOPER DUGGAN, ALEXANDER HOEFER, AND LANHJAMIN TRAN

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WORKSHOP 6.27.2025

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Workshop Overview�

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Understanding robot components and building a robot

How sensors works

Programming the robots

Hands-on activities

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4-wheeled Mobile Robot

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Mobile Robot Development

SECTION 1

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Main Parts

  • Chassis
  • Motors
  • Sensors
  • Wheels
  • Arduino
  • Driver
  • Battery

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DC Motors

  • How they work: Convert electrical energy into mechanical motion
  • Function: Control robot movement:
  • Speed: Based on voltage
  • Direction: one side rotating clockwise and the other side rotating counterclockwise

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Arduino

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  • Arduino Uno:

A small, programmable device to process the data.

  • Function:

Reads inputs (like sensors) and controls outputs (like lights or motors).

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Expansion Board and Motor Driver

  • How it works: Acts as an interface between the microcontroller, motors, and sensors
  • Driver Function: Controls the speed of multiple motors simultaneously

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Ultrasonic Sensor�

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  • Working principle:

Emits sound waves and measures echo return time

  • Function:

Distance measurement and obstacle detection

  • Formula:

Distance = (Time × Speed of sound) ÷ 2

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Line-Tracking Module�

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  • Working principle:

Emits infrared light and measures the reflected intensity

  • Function:

Line detection for path following

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Accelerometer

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  • Working principle:

Uses the inertia by moving a mass and measuring the change in electricity.

  • Function:

It measures how fast something is speeding up or slowing down in three directions (X, Y, Z)

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Assembly

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Chassis

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DC Motor Assembly

  • M3 Nut *2
  • M3*30 Hexagon Socket Screw *2
  • Aluminum Block *1

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Motors Assembly on Chassis

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  • M3*10 Hexagon Socket Screw *8

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Line Tracking Module Installation

  • M3 Nut *4
  • Separation Pillars *4
  • M3*14 Hexagon Socket Screw *4

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Mounting the Accelerometer

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  • M3 *5 Countersunk Screw *2
  • M3*11 Copper Pillar * 1

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Installing Expansion Board and Uno

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  • M3 Nut *3
  • Separation Pillars *3
  • M3*14 Hexagon Socket Screw *3

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Battery Assembly

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  • M3 *12 Hexagon Socket Screw *2
  • M3 Nut * 2

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Assembling the Camera Module

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  • M2 *4 Phillips Screw *4
  • M2 *6 Copper Pillar *2
  • Camera Bracket *1
  • 4P Cables *1

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Ultrasonic Sensor Module Assembly Part 1

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  • M2 Nut *2
  • M2 *10 Cross Screw *2
  • Dead Plate *1

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Ultrasonic Sensor Module Assembly Part 2

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  • M1.6 Nut *2
  • M1.6 *8 Cross Screw *2
  • Ultrasonic Sensor Module *1

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Ultrasonic Sensor Module Assembly Part 3

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  • M1.6 Nut *2
  • M2 *6 Copper Pillar *2
  • M1.6 *16 Cross Screw *2

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Ultrasonic Sensor and Camera Installation

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  • M3 Nut *3
  • M3 *10 Hexagon Socket Screw *3

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Wiring

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Wheels Installation

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  • M2 Nut *25 Self-tapping Screw *4