Arduino Uno R3
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Chapter 0
Welcome to Robo Gurukul!
Your Arduino Adventure — Stages 1 to 3
What is this book?
This book helps you learn Arduino step by step through 30 fun projects. Each chapter matches a mission in Robo Gurukul Studio — the same lessons you see in the desktop app, written so you can read, build, and understand even when you are away from the computer.
How to use this book
1
Read the story
Every project starts with a real-world idea and a simple analogy so you know why you are building it.
2
Meet the parts
Learn what each component does before you touch any wires.
3
Build the circuit
Follow the wiring steps one at a time. Check the circuit diagram after each step.
4
Understand the code
Read the code in small pieces. Each block explains one idea.
5
Try the quiz
Test yourself with quick questions at the end of each chapter.
How the book matches the app
Each project chapter follows the same learning journey as Robo Gurukul Studio:
See itDiscover what the project doesStoryUnderstand the problem and analogyMeet partsLearn about each componentHow it worksFollow the program flowBuild itWire the circuit step by stepTry itRun and observePeek at codeRead the Arduino sketchQuick quizCheck your understandingCode labPractice challenges to try on your own
Safety first
- Always use a resistor with LEDs — it protects the LED and the Arduino pin.
- Connect and disconnect wires only when the Arduino is unplugged from USB power.
- Ask a teacher or adult if you are unsure about any connection.
- Never connect motors or high-power devices directly to Arduino pins without the right driver circuit.
- Keep food and drinks away from your breadboard and components.
Your starter kit
These 30 projects use the Robo Gurukul starter kit. Make sure you have all the parts before you begin Stage 1.
USB cable
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Breadboard
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Jumper wire pack
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Single LEDs
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Resistors 220 Ω
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RGB LED (common cathode)
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10-segment LED bar graph
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Pushbutton
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Slide switch
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Buzzer
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7-segment display (common cathode)
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PIR motion sensor module
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Parts you will meet
These components appear across the 30 projects in Stages 1–3.
Shows die face 1–6
7-segment display
Display
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Decides when the LED is on or off
Arduino
Brain
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Matches blue in the sequence
Blue button
Input
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Shows blue in the pattern
Blue LED
Output
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Protects the blue channel
Blue resistor
Safety
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Protects blue LED
Blue resistor
Safety
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Connects components in rows like a real breadboard
Breadboard
Workspace
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Press to signal the Arduino
Button
Input
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Beeps when pressed
Buzzer
Sound
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Green light in the sequence
Green LED
Go
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Second alternating light
Green LED
Output B
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Protects the green LED
Green resistor
Safety
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Protects the green LED
Green resistor
Safety
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Protects the green channel
Green resistor
Safety
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Shows output from the code
LED
Light
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Ten segments you can light up
LED bar graph
Display
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Detects movement
Motion sensor
Input
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First press wins
Player A button
Input
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Second player buzzes in
Player B button
Input
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Matches red in the sequence
Red button
Input
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Red light in the sequence
Red LED
Stop
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First alternating light
Red LED
Output A
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Shows red in the pattern
Red LED
Output
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Protects the red LED
Red resistor
Safety
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Protects the red LED
Red resistor
Safety
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Protects the red channel
Red resistor
Safety
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Protects red LED
Red resistor
Safety
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Limits current to the LED
Resistor
Safety
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Three color channels in one bulb
RGB LED
Color light
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Stays ON or OFF
Slide switch
Input
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Matches yellow in the sequence
Yellow button
Input
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Yellow light in the sequence
Yellow LED
Caution
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Shows yellow in the pattern
Yellow LED
Output
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Protects the yellow LED
Yellow resistor
Safety
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Protects yellow LED
Yellow resistor
Safety
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