Kids · Built by Nikhil

Day 1: Intro to Arduino & Your First Code

11 April 2026·1587 words·8 mins

Day 1 of Learn Coding with Arduino — meet your Uno, install the IDE, and make the little built-in LED blink.

Day 2: Blinking an External LED & Understanding the Breadboard

11 April 2026·1296 words·7 mins

Arduino Arduino Beginner Kids Led Breadboard Resistor

Day 2 of Learn Coding with Arduino — wire up your own LED on a breadboard, learn why resistors matter, and blink it from the Uno.

Day 3: Button Input — Making the Arduino Listen

11 April 2026·1568 words·8 mins

Arduino Arduino Beginner Kids Button Input Digitalread If-Else

Day 3 of Learn Coding with Arduino — connect a push button, read it with digitalRead, and use your first if/else to turn on an LED only when pressed.

Day 4: Variables and Loops

11 April 2026·1664 words·8 mins

Arduino Arduino Beginner Kids Variables Loops For-Loop

Day 4 of Learn Coding with Arduino — meet variables (labeled boxes that hold numbers) and for loops (repeat without retyping). Blink an LED 5 times in a row with just a few lines.

Day 5: Three LEDs — Dance, Chase, and Random

11 April 2026·1270 words·6 mins

Arduino Arduino Beginner Kids Led For-Loop Arrays Random

Day 5 of Learn Coding with Arduino — wire up 3 LEDs and control them as a group. Chaser patterns, random blinks, and the trick of looping over pin numbers.

Day 6: Build a Traffic Light System

11 April 2026·1073 words·6 mins

Arduino Arduino Beginner Kids Led Project Traffic-Light

Day 6 of Learn Coding with Arduino — build a full red-yellow-green traffic light with realistic timing, then add a pedestrian button that overrides the cycle.

Day 7: The Easier Button — INPUT_PULLUP

11 April 2026·1411 words·7 mins

Arduino Arduino Beginner Kids Button Input Pullup Toggle

Day 7 of Learn Coding with Arduino — simplify your button circuit using the Arduino’s built-in pull-up. One resistor less, and learn how to toggle an LED with each press.

Day 8: Potentiometer, Serial Monitor, and Dimming an LED

11 April 2026·1534 words·8 mins

Arduino Arduino Beginner Kids Analog Potentiometer Serial Pwm Map

Day 8 of Learn Coding with Arduino — your first analog input. Read a potentiometer knob, print numbers to the Serial Monitor, and use PWM to dim an LED smoothly.

Day 9: Light Sensor — Arduino Learns to See

11 April 2026·1259 words·6 mins

Arduino Arduino Beginner Kids Sensor Ldr Analog Threshold

Day 9 of Learn Coding with Arduino — wire up a photoresistor (LDR) to read how bright the room is, and use a threshold to decide if it’s dark enough to turn on a light.

Day 10: Project — Smart Night Light

11 April 2026·1445 words·7 mins

Arduino Arduino Beginner Kids Project Ldr Led Button Night-Light

Day 10 of Learn Coding with Arduino — build a smart night light that turns on automatically when it gets dark, with a manual override button.

Day 11: Buzzer — Make Noise and a Simple Melody

11 April 2026·1199 words·6 mins

Arduino Arduino Beginner Kids Buzzer Tone Sound Melody

Day 11 of Learn Coding with Arduino — connect a piezo buzzer and use tone() to play beeps, notes, and a short melody.

Day 12: Servo Motor — Rotate to Any Angle

11 April 2026·1368 words·7 mins

Arduino Arduino Beginner Kids Servo Motor Library

Day 12 of Learn Coding with Arduino — hook up an SG90 servo motor, sweep it from 0° to 180°, and control its position with a potentiometer.

Day 13: DC Motor, Transistor, and Speed Control

11 April 2026·1403 words·7 mins

Arduino Arduino Beginner Kids Dc-Motor Transistor Pwm Speed-Control

Day 13 of Learn Coding with Arduino — drive a DC motor with a transistor and control its speed using PWM. Meet the diode and understand why Arduino can’t power motors directly.

Day 14: Project — Auto Fan System

11 April 2026·1214 words·6 mins

Arduino Arduino Beginner Kids Project Motor Sensor Auto-Fan

Day 14 of Learn Coding with Arduino — build an automatic fan that turns on when the room gets too bright or too hot, with a buzzer alert. Everything from Days 1-13 in one project.

Day 15: LCD Screen — Hello Anish!

11 April 2026·1349 words·7 mins

Arduino Arduino Beginner Kids Lcd I2c Display Library

Day 15 of Learn Coding with Arduino — hook up a 16×2 LCD via I2C and display your first text. Arduino gets a screen!

Day 16: Show Sensor Values on the LCD

11 April 2026·1032 words·5 mins

Arduino Arduino Beginner Kids Lcd Sensor Ldr Potentiometer

Day 16 of Learn Coding with Arduino — display live potentiometer and LDR readings on the 16x2 LCD without flicker. Arduino gets a dashboard.

Day 17: Build an LCD Menu You Can Navigate

11 April 2026·1379 words·7 mins

Arduino Arduino Beginner Kids Lcd Menu Ui Arrays Strings

Day 17 of Learn Coding with Arduino — build a scrollable menu on the 16x2 LCD. Two buttons: one to cycle through options, one to select. Arduino gets a real user interface.

Day 18: Project — Mini Weather Station

11 April 2026·1233 words·6 mins

Arduino Arduino Beginner Kids Project Lcd Weather Custom-Chars

Day 18 of Learn Coding with Arduino — build a mini weather station that shows light level, simulated temperature, and custom sun and moon icons on the LCD.

Day 19: IR Remote — Control Arduino with a TV Remote

11 April 2026·1494 words·8 mins

Arduino Arduino Beginner Kids Ir Remote Wireless Library

Day 19 of Learn Coding with Arduino — hook up an IR receiver and use any TV or DVD remote to control LEDs. Your first wireless input.

Day 20: Sound Sensor — Clap to Control

11 April 2026·1324 words·7 mins

Arduino Arduino Beginner Kids Sound Sensor Ky-038 Clap

Day 20 of Learn Coding with Arduino — wire up a KY-038 sound sensor, detect claps, and toggle an LED with a sound.

Day 21: Dual-Mode Control — IR Remote + Sound

11 April 2026·1257 words·6 mins

Arduino Arduino Beginner Kids Ir Sound Lcd Modes Integration

Day 21 of Learn Coding with Arduino — combine the IR remote and sound sensor into one sketch with manual and auto modes, with the LCD showing the current state.

Day 22: Project — Smart Room System

11 April 2026·1577 words·8 mins

Arduino Arduino Beginner Kids Project Smart-Home Integration

Day 22 of Learn Coding with Arduino — the big one. Build a Smart Room System that combines IR, sound, LCD, light sensor, LED, and buzzer into one coherent program.

Day 23: Pick Your Project — Brainstorm and Plan

11 April 2026·1383 words·7 mins

Arduino Arduino Beginner Kids Project Planning Design

Day 23 of Learn Coding with Arduino — the first day of your final project. Brainstorm ideas, pick one that excites you, and sketch the system diagram before writing any code.

Day 24: Build Your Project — One Piece at a Time

11 April 2026·1294 words·7 mins

Arduino Arduino Beginner Kids Project Building Testing

Day 24 of Learn Coding with Arduino — take the project plan from Day 23 and start building. One module at a time, tested and working, before moving to the next.

Day 25: Integrate and Debug

11 April 2026·1663 words·8 mins

Arduino Arduino Beginner Kids Project Debugging Millis Functions

Day 25 of Learn Coding with Arduino — stitch all the modules from Day 24 into one coherent sketch, break loop() into helper functions, and debug integration issues.

Day 26: Demo Day — Show It Off

11 April 2026·1319 words·7 mins

Arduino Arduino Beginner Kids Project Demo Celebration

Day 26 of Learn Coding with Arduino — the final day. You present your project, celebrate the journey, and think about what to build next.