Learn · Build · Create

Turn bright ideas into real inventions.

Step-by-step Arduino lessons that help young makers learn coding by building things they can hold.

Start learning Sign in to continue
For now, lessons are for CODEMEKA students: sign in with your login card.
A pixel-art maker workbench with an Arduino, breadboard, rover, and coding blocks.
1

LearnShort, friendly lesson steps

2

BuildWire a circuit with a grown-up

3

CodeSnap blocks together and run them

Project path

Start small. Make something amazing.

Every mission introduces one new skill and a real result. Each one works in the simulator first.

  1. A glowing orange LED wired into a white breadboard.
    Mission 01Available now

    Make a light blink

    Build your first circuit, then make pin D13 send a light signal.

    15 minutesBeginnerAdult help for wiring
    You’ll needArduino Uno R3 + USB cable · red LED · 330 Ω resistor · 2 male–female + 1 female–female jumper wires · 2 × AA holder
    • Closed circuits
    • Outputs
    • Loops
    • Works without a board
    Open project
  2. A cardboard traffic light with its red lamp glowing, wired to an Arduino beside a toy car.
    Mission 02Available now

    Build a traffic light

    Wire red, amber and green lights, then code the cycle a real junction uses.

    90 minutesBeginnerAdult help for wiring
    You’ll needArduino Uno R3 + USB cable · breadboard · red, amber and green LEDs · 3 × 220 Ω resistors · 4 male–male jumper wires
    • Several outputs
    • Sequences
    • Repeat
    • Works without a board
    Open project
  3. A cardboard Arduino alarm with a blue button and black buzzer.
    Mission 03Available now

    Build a mini alarm

    Press a button to make a buzzer beep, then turn your traffic light into a crossing.

    90 minutesBeginnerAdult help for wiring
    You’ll needMission 02 traffic light · push button · passive piezo buzzer · 3 male–male jumper wires
    • Inputs
    • If / else
    • Forever
    • Works without a board
    Open project
  4. A cardboard night-light house with a glowing window and Arduino.
    Mission 04Available now

    Create a night light

    Read a light sensor and make a street lamp switch on by itself when it gets dark.

    90 minutesNext levelAdult help for wiring
    You’ll needArduino Uno R3 + USB cable · breadboard · light sensor (LDR) · 10 kΩ resistor · LED · 330 Ω resistor · 4 male–male jumper wires
    • Sensors
    • Thresholds
    • If / else
    • Works without a board
    Open project

For parents and teachers

Low voltage onlyProjects use USB power or a 2 × AA battery holder. Never household electricity or wall sockets.
Which devices workComputers with Chrome or Edge, and Android phones with Chrome and a USB OTG adapter, can connect a board. Every device can use the simulator.
When to helpSteps marked Adult help involve wiring or power. Learners can do everything else on their own.

Ready to make your first circuit?

Sign in with your login card and begin with the Arduino blink project.

Start a lesson