Class 3 — Circuits & Scratch Advanced

📚 Class 3 Modules

What You'll Learn

6 comprehensive modules covering everything from theory to hands-on projects!

💻

Scratch Advanced Games

Create multi-level games with timers, high scores, and animations. Build a Pong game, a catch game, and an interactive quiz — all from scratch!

ScratchAnimationVariablesLists

⚡

Arduino — Hello World!

Connect and program your first Arduino! Make the built-in LED blink in a pattern. Learn what a microcontroller is. Upload code for the first time!

ArduinoLEDUploadC++

🌡️

Sensors — The Robot's Senses

Add a temperature sensor (DHT11) and light sensor (LDR) to Arduino. Display readings on the Serial Monitor. Understand how robots 'sense' their environment!

DHT11LDRSerial MonitorAnalog

0️⃣

Binary Numbers & Logic

Learn to count in binary (0s and 1s)! Convert numbers between decimal and binary. Learn AND, OR, NOT logic gates with light bulb demos and puzzles!

BinaryLogic GatesNumber Systems

🌐

TinkerCAD Circuits — Online Lab

Use TinkerCAD Circuits to simulate Arduino projects online. Build and test circuits virtually before touching real hardware — safe and unlimited!

TinkerCADSimulationArduino Online

🖨️

3D Design — Functional Parts

Design functional parts in TinkerCAD: brackets, holders, enclosures. Learn about measurements, tolerances, and how 3D-printed parts are used in real robots!

TinkerCAD3D PrintEngineering

⚡ Interactive Labs

Try It Right Now!

8 interactive simulators — code editor, robot sim, circuit lab, quiz, binary game, AI pattern, sequences, and sorting!

🖥️ Remesys Interactive Lab — Class 3

// ⚡ Arduino — Class 3 Starter!
// Upload this to your Arduino board:

const int LED = 13;

void setup() {
  pinMode(LED, OUTPUT);
  Serial.begin(9600);
  Serial.println("Remesys Class 3!");
}

void loop() {
  digitalWrite(LED, HIGH); // ON
  delay(500);
  digitalWrite(LED, LOW);  // OFF
  delay(500);
  Serial.println("Blink!");
}

▶ Click "Run Code" to see output!

Ready

🕹️ CONTROLS

📡 LIVE SENSORS

🔊 Ultrasonic --

🌡️ Temperature 28°C

💡 Light (LDR) --

🔋 Battery 85%

Select a component above, then click on the canvas to place it!

Score: 0

Q: 1/5

Level: Beginner 🌱

Convert the decimal number to binary! Score streak points!

Convert this number to binary:

Score: 0 | Best: 0

2⁷

128

2⁶

64

2⁵

32

2⁴

16

2³

8

2²

4

2¹

2

2⁰

1

Draw a pattern, teach the AI, then draw a similar one and see if it recognises it!

Spot the number pattern and type the next number — just like AI sequence prediction!

Drag each item into the correct bin — just like an AI sorting algorithm!

🍎 FRUIT

🚗 VEHICLE

🐶 ANIMAL

Correct: 0 | Wrong: 0

🔨 Build & Create

Class 3 Projects

Real hands-on projects you'll build during the year!

🌡️

🌱 Easy

Smart Thermometer

Build a temperature display using DHT11 sensor and Arduino — shows on Serial Monitor!

⏱️ 2 hrs

🌃

🌱 Easy

Auto Night Light

LDR-based light that turns on automatically when it gets dark!

⏱️ 3 hrs

🎮

⚡ Medium

Arduino LED Game

A reaction time game with LEDs and a button — press as fast as you can!

⏱️ 4 hrs

🔢

⚡ Medium

Binary Counter Display

Use 8 LEDs to display binary numbers 0–255 on an Arduino board!

⏱️ 3 hrs

📅 Annual Schedule

Class 3 Roadmap

2 classes per week, quarterly projects, and the Annual Innovation Showcase

3

Class 3 — Full Year Schedule

40 weeks · 2 classes/week · 80 sessions

Wk 1–2Scratch advanced — multi-level game

Wk 3–4Arduino intro — blink LED, upload code

Wk 5–6DHT11 temperature sensor + LDR light sensor

Wk 7–8Binary numbers — count in 0s and 1s!

Wk 9–10Q1 Project — Smart Thermometer 🌡️

Wk 11–12TinkerCAD Circuits simulation

Wk 13–14Auto Night Light with LDR sensor

Wk 15–16Logic gates — AND, OR, NOT demos

Wk 17–183D functional parts design

Wk 19–20Q2 Project — Auto Night Light 🌃

Wk 21–28Binary game, Scratch quiz game, sensor combos

Wk 29–40Annual Showcase — Smart Room Monitor 🏆

❓ Class 3 FAQ

Common Questions

When do students start using the actual Arduino board? ▼

Class 3 is when hands-on Arduino programming begins! Students upload their first program (blink LED) and connect their first sensor.

Do they learn C++ programming? ▼

The Arduino language is C++-based. Students learn the basics naturally — void setup(), void loop(), digitalRead(), analogRead() etc.

How does the quarterly project work? ▼

Every 10 weeks, students complete a major project. They design, build, test and present it to the class. Feedback is given by teachers and peers. This mirrors real engineering and design-thinking workflows!

Can I use this simulator to practise at home? ▼

Yes! The simulators on this page work in any modern browser — no installation needed. Students can practise coding, circuit design, and robot control from home anytime!

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Class 3 💡 Circuits & Scratch Advanced