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Harshil Kachhlia
Zero2Maker Maker Portfolio

Harshil Kachhlia

Aspiring maker

Amba School for Excellence

About Me

I’m Harshil Kachalia, a student who enjoys learning, building, and exploring new ideas. I’m interested in AI, robotics, electronics, web development, and science. I learn best by building, experimenting, testing, and improving, and I enjoy discovering something new with every project. I’ve worked on projects involving robotics, interactive websites, Arduino-based systems, and scientific experimentation. One of my recent projects, Plant Whisperer, explores whether plants can reveal stress through changes in their bioelectric signals. I’m always curious about how things work and enjoy taking on challenges that combine technology, creativity, and problem-solving. My goal is to keep learning, keep building, and create things that can make a real difference.

52
Challenges
40
Verified
16,780
XP Earned
Legend · L10
8.9
Avg Doc Score
10

Maker rank

Legend

Elite maker — top of the journey.

16,780 XP earned

Signature strength: Observation

Maximum maker rank unlocked.

40 verified builds in this portfolio.

Maker dimensions

Creativity 71
Problem Solving 92
Research 51
Observation 100

Learning Belt

White → Yellow → Orange → Green → Blue → Purple → Brown → Red → Black

Current belt

White Belt

40 verified builds

White Belt

Next: Yellow Belt — 40/25 total verified

Six learning tracks

📐

Spatial Thinking

Visualizing objects in 3D and translating complex ideas into physical structures through CAD and sketching.

0 need 5 for Yellow Belt
🔄

Systems Thinking

Sense → Decide → Act. Breaking down the world into fundamental elements. Understanding how data becomes decision, and decision becomes action.

40 need 10 for Yellow Belt
🧠

Logic Thinking

The architecture of behavior. Defining the rules of the game through coding challenges and computational logic.

0 need 3 for Yellow Belt
💜

Human Centered Design

Empathy in engineering. Designing interactions that feel natural, intuitive, and human-centered.

0 need 1 for Yellow Belt
🔧

Fabrication

The bridge from idea to reality. Mastering the tools of physical creation—from circuits to mechanical assembly.

0 need 5 for Yellow Belt
🎤

Communication

Communication is the final product. Learning to articulate the "What", the "How", and most importantly, the "Why".

0 need 1 for Yellow Belt

Each track contains modules → sessions → challenges. Assign tracks on each module in Admin → Modules.

Skill Badges

Arduino mastery badges earned when a full challenge set is verified — 9 of 25 unlocked

Earned

💡
First Light
Verified your first Arduino blink challenge.
Ch. 1 verified
🧩
Breadboard Master
Verified all breadboard foundation challenges — wiring, rails, layout, and exploration.
Ch. 1–6 verified
⌨️
Blink Coder
Verified all Arduino IDE coding challenges — slow, fast, and custom blink patterns.
Ch. 7–10 verified
✨
LED Pattern Master
Verified the full LED chase and pattern series.
Ch. 11–20 verified
🔘
Digital Input Master
Verified push-button and digital input challenges — buttons, toggle, and buzzer control.
Ch. 22–24 verified
🔆
PWM Master
Verified PWM output challenges — LED brightness and variable blink speed.
Ch. 25–26 verified
🎚️
Analog Input Master
Verified potentiometer challenges — reading values and controlling outputs.
Ch. 27–28 verified
🌙
Light Sensor Master
Verified LDR challenges — sensing light and building automatic night lamps.
Ch. 31–33 verified
📡
Distance Sensor Master
Verified ultrasonic distance challenges — measure, assist, and alarm.
Ch. 34–36 verified

In progress

🏠
Environmental Sensor Master
Ch. 31–40
7/10 challenges verified
🎛️
Interactive Builder
Ch. 29–30
1/2 challenges verified
🚨
Motion Sensor Master
Ch. 37–38
1/2 challenges verified
🖥️
Display Master
Ch. 41–50
4/10 challenges verified

Locked

🌡️
Temperature Sensor Master
Ch. 39
🔄
Servo Master
Ch. 51–54
⚙️
Motor Master
Ch. 55–58
📶
Wireless Master
Ch. 59–60
⏱️
Multi-Task Master
Ch. 61–70
🌱
Soil Sensor Master
Ch. 71–72
💧
Water Level Master
Ch. 73–74
🔊
Sound Sensor Master
Ch. 75–76
🛡️
Safety Systems Master
Ch. 77–78
🌍
Smart Guardian
Ch. 79–80
🤖
Robot Master
Ch. 81–90
🏆
Arduino Legend
Ch. 100

Learning Activity

52 challenge submissions in the last year

0
Day streak
4
Best streak
17
Active days
Mon Wed Fri
Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct
Less More

Each square is a day. Color intensity reflects how many challenges you documented that day.

Module 1

Welcome to Arduino

Welcome to your first step into the world of electronics.

In this module, you will learn how to use an Arduino Uno, connect components safely, write your first program, and build confidence using a breadboard.

You do not need any prior coding or electronics experience. Each challenge takes only a few minutes. By the end of Challenge 10, you will have completed your first electronic projects completely on your own.

Challenge 54

Automatic Sensor Servo

Awaiting review 1420 XP
Evidence
object not present
Evidence
object present
Student Documentation

I built a servo circuit where the servo moved to 90 degrees when a object was detected within 20 cm whereas it would come back to 0 degree if it did not detect any object within 20 cm. I understood how the loop function in the code works

Documented Sep 9, 2026 3:11 PM IST
Challenge 53

Servo Sweep Machine

Awaiting review 1380 XP
Student Documentation

I built a connection for servo where when code uploaded, the servo moves back and forth continously.

Documented Sep 2, 2026 4:29 PM IST
Challenge 52

Servo Position Controller

Awaiting review 1350 XP
Student Documentation

I made this project where as i rotated the potentiometer, the servo also rotates. I understood how the code takes the values of potentiometer and accordingly rotates the the servo

Documented Aug 21, 2026 4:23 PM IST
Challenge 51

Meet Your First Servo

Awaiting review 1320 XP
Student Documentation

I learned how a servo moves with it gears on angles like 0, 45, 90, 135 and 180.

Documented Aug 21, 2026 4:06 PM IST
Challenge 48

Distance Dashboard

Awaiting review 1200 XP
Student Documentation

I built a distance reading circuit and in this project I learnt how the uktrasonic measures distance by sound waves.

Documented Aug 19, 2026 4:42 PM IST
Challenge 47

Visualize Sensor Data

Verified Doc 8/10 1160 XP
Evidence
serial plotter
Evidence
circuit
Student Documentation

It was a very fun challenge as I llearnt to use the serial plotter for the first time. I learnt how the graphs form when we tell it to print different labels and mark its readings.

Documented Aug 18, 2026 4:46 PM IST · Reviewed Aug 18, 2026 5:01 PM IST
Challenge 46

Build an Environment Monitor

Verified Doc 9/10 1130 XP
Student Documentation

I built an environment monitor circuit that combines dht11 and ldr module and shows the reading on a lcd display. I faced problem in lcd display but it soon got solved as I realized I had not installed the Liquid Crystal_I2c library

Documented Aug 18, 2026 4:30 PM IST · Reviewed Aug 18, 2026 5:01 PM IST
Challenge 45

Display Sensor Values

Verified Doc 8/10 1090 XP
Student Documentation

I connected a ldr with lcd display for the first time and learnt how to show values in numbers from a sensor even if it does not have a A0 pin.

Documented Aug 17, 2026 4:24 PM IST · Reviewed Aug 18, 2026 5:07 PM IST
Challenge 44

Meet the LCD Display

Verified Doc 9/10 1060 XP
Student Documentation

I understood about the rows and coloumns of a lcd display and learned about the potentiometer on the back of the lcd display module

Documented Aug 17, 2026 4:01 PM IST · Reviewed Aug 18, 2026 5:14 PM IST
Challenge 43

Countdown Timer

Awaiting review 1030 XP
Student Documentation

I BUILT A SEVEN SEGMENT DISPLAY COUNTDOWN TIMER WHERE i UNDERSTOOD HOW OUR CODE EXPLAINS THE PATTERNS TO DISPLAY BY SHOWING 1 AND 0

Documented Aug 14, 2026 4:52 PM IST
Challenge 42

Digital Counter

Awaiting review 1000 XP
Student Documentation

I built a button controlled 7 segment display where I applied the logic of my 40 project and just added a button. I also understood that how with every click the code changes the number

Documented Aug 14, 2026 4:47 PM IST
Challenge 41

Meet the Seven Segment Display

Awaiting review 980 XP
Student Documentation

I made my first project with a single digit seven segment display

Documented Aug 14, 2026 4:34 PM IST
Challenge 40

Smart Room Guardian

Awaiting review 950 XP
Student Documentation

I combined the knowledge of all projects done in 31 to 39 projects and made this project .

Documented Aug 14, 2026 3:59 PM IST
Challenge 39

Temperature Indicator

Awaiting review 860 XP
Student Documentation

I got introduced to DHT11 temperature sensor for the first time.

Documented Aug 12, 2026 4:53 PM IST
Challenge 38

Automatic Security Alarm

Awaiting review 820 XP
Student Documentation

It took me a long time to make this project as I understood about the possible challenges I might face while working with a pir motion sensor

Documented Aug 12, 2026 4:36 PM IST
Challenge 37

Motion Detector (PIR)

Verified Doc 8/10 790 XP
Student Documentation

I learn how to use motion sensor and the basic system of automatic night lamp

Documented Aug 11, 2026 4:12 PM IST · Reviewed Aug 11, 2026 11:12 PM IST
Challenge 36

Reverse Parking Alarm

Verified Doc 9/10 760 XP
Project Links
Project Video
Open link →
Student Documentation

it took time in making as my ultrasonic sensor was not working but soon with a new ultrasonic, I made a buzzer led parking assistance

Documented Aug 10, 2026 5:05 PM IST · Reviewed Aug 10, 2026 10:39 PM IST
Challenge 35

Parking Assistant

Verified Doc 9/10 730 XP
Evidence
more distance
Evidence
close distance
Student Documentation

I built a miniature parking assistance provider with ultrasonic sensor and led

Documented Aug 10, 2026 4:22 PM IST · Reviewed Aug 10, 2026 10:47 PM IST
Challenge 34

Distance Measurement (Ultrasonic)

Verified Doc 9/10 700 XP
Project Links
Project Video
Open link →
Student Documentation

I made a real time working distance measurement ciruit that show distance betwen objects in serial monitor

Documented Aug 10, 2026 4:07 PM IST · Reviewed Aug 10, 2026 10:49 PM IST
Challenge 33

Adjustable Night Lamp

Verified Doc 9/10 670 XP
Student Documentation

I learnt how to debugg the code of ldr where my project was working invertedly.

Documented Aug 7, 2026 4:55 PM IST · Reviewed Aug 10, 2026 11:00 PM IST
Challenge 32

Automatic Night Lamp

Verified Doc 9/10 640 XP
Student Documentation

I made my first ldr project in the form of an light lamp

Documented Aug 7, 2026 4:43 PM IST · Reviewed Aug 10, 2026 11:00 PM IST
Challenge 31

Meet Your First Sensor (LDR)

Verified Doc 8/10 620 XP
Student Documentation

I learnt how to use a light dependent resistor

Documented Aug 7, 2026 4:33 PM IST · Reviewed Aug 10, 2026 11:00 PM IST
Challenge 30

Push Button Pattern Selector

Verified Doc 9/10 600 XP
Student Documentation

I made a button powered led blinking system which was very easy making after the so much prior knowledge about buttons and leds

Documented Aug 7, 2026 4:04 PM IST · Reviewed Aug 11, 2026 11:19 PM IST
Challenge 29

RGB Color Mixer

Awaiting review 580 XP
Student Documentation

I made a rgb led controlling potentiometer circuit.

Documented Aug 19, 2026 4:29 PM IST
Challenge 28

Potentiometer LED Selector

Verified Doc 9/10 530 XP
Student Documentation

I enjoyed making a potentiometer led LED selector. I understood how the code made different values for the amount of rotation the potentiometer has had and on that basis it selects which LED to glow.

Documented Aug 6, 2026 3:58 PM IST · Reviewed Aug 6, 2026 4:16 PM IST
Challenge 27

Read Potentiometer Values

Verified Doc 9/10 500 XP
Student Documentation

I learnt how there are different readings in the serial monitor when we rotate potentiometer

Documented Aug 5, 2026 4:52 PM IST · Reviewed Aug 11, 2026 11:23 PM IST
Challenge 26

Control Blink Speed

Verified Doc 9/10 470 XP
Student Documentation

I built a circuit where rotating the potentiometer changes the blink speed of led

Documented Aug 5, 2026 4:45 PM IST · Reviewed Aug 11, 2026 11:23 PM IST
Challenge 25

Control LED Brightness

Verified Doc 8/10 450 XP
Student Documentation

I took time to make and understand this potentiometer led LED but I made it. I worked with potentiometer for the first time

Documented Aug 5, 2026 4:38 PM IST · Reviewed Aug 11, 2026 11:23 PM IST
Challenge 24

Push Button Controlled Buzzer

Verified Doc 8/10 420 XP
Student Documentation

I built a button powered buzzer that buzzes for 3 secs when we toggle the button

Documented Aug 4, 2026 4:16 PM IST · Reviewed Aug 11, 2026 11:29 PM IST
Challenge 23

Push Button Toggle LED

Verified Doc 8/10 400 XP
Student Documentation

I built a button powered led circuit and it was fun making a similar light system like our house light system

Documented Aug 4, 2026 4:08 PM IST · Reviewed Aug 11, 2026 11:30 PM IST
Challenge 22

Push Button Controlled LED

Verified Doc 9/10 380 XP
Student Documentation

I learnt how to use a small bottun and connect it with led and arduno

Documented Jul 31, 2026 4:41 PM IST · Reviewed Aug 1, 2026 3:36 PM IST
Challenge 21

LED with 5V Power

Verified Doc 10/10 360 XP
Student Documentation

I learnt how to power a led with the 5v and gnd pin of arduino.

Documented Jul 31, 2026 4:36 PM IST · Reviewed Aug 1, 2026 3:36 PM IST
Challenge 20

LED Pattern 6 (Creative Light Show)

Verified Doc 10/10 350 XP
Student Documentation

I built a led system using my own code.

Documented Jul 31, 2026 4:31 PM IST · Reviewed Aug 1, 2026 3:36 PM IST
Challenge 19

LED Pattern 5 (Alternate Blink)

Verified Doc 9/10 300 XP
Student Documentation

I built my own patterned led blinking system.

Documented Jul 31, 2026 4:27 PM IST · Reviewed Aug 1, 2026 3:37 PM IST
Challenge 18

LED Pattern 4 (Forward & Reverse)

Verified Doc 9/10 280 XP
Student Documentation

I built a diwali light-like led chase

Documented Jul 31, 2026 4:22 PM IST · Reviewed Aug 1, 2026 3:38 PM IST
Challenge 17

LED Pattern 3 (Progressive Fill)

Verified Doc 9/10 260 XP
Student Documentation

I built a led system where leds stay on untill all the leds are on and then they all turn off; the loop continues

Documented Jul 31, 2026 4:19 PM IST · Reviewed Aug 1, 2026 3:38 PM IST
Challenge 16

LED Pattern 2

Verified Doc 9/10 240 XP
Student Documentation

I learnt how to make a led pattern with 6 leds where two leds blink at once

Documented Jul 31, 2026 4:15 PM IST · Reviewed Aug 1, 2026 3:39 PM IST
Challenge 15

LED Pattern 1

Verified Doc 9/10 220 XP
Student Documentation

I understood and built a pattern led led chase.

Documented Jul 31, 2026 4:09 PM IST · Reviewed Aug 1, 2026 3:40 PM IST
Challenge 14

Eight LED Chase

Verified Doc 9/10 200 XP
Student Documentation

I understood the array and loop function in the code and made a led chase with 8 leds.

Documented Jul 31, 2026 3:52 PM IST · Reviewed Aug 1, 2026 3:42 PM IST
Challenge 13

Four LED Chase

Verified Doc 9/10 180 XP
Student Documentation

I built a 4 led chase with 4 leds, 4 different digital pins on arduino and a simple code

Documented Jul 31, 2026 3:18 PM IST · Reviewed Aug 1, 2026 3:48 PM IST
Challenge 12

Three LED Chase

Verified Doc 9/10 170 XP
Student Documentation

I learnt to make a 3 led chase with just some prior knowledge about code and leds

Documented Jul 31, 2026 3:13 PM IST · Reviewed Aug 1, 2026 3:48 PM IST
Challenge 11

Two LED Chase

Verified Doc 9/10 160 XP
Evidence
led chase
Evidence
led chase
Student Documentation

I created a led chase with 2 led. I learnt that two do this challenge, we need two different digital pins for led

Documented Jul 27, 2026 4:53 PM IST · Reviewed Aug 1, 2026 4:17 PM IST
Challenge 10

Blink Like a Maker

Verified Doc 9/10 150 XP
Evidence
led blinking
Evidence
led not blinking
Student Documentation

I learnt how to customize the blinking speed of led.

Documented Jul 27, 2026 4:41 PM IST · Reviewed Aug 1, 2026 4:17 PM IST
Challenge 9

Custom Blink Pattern

Verified Doc 9/10 130 XP
Evidence
led blinking
Evidence
led not blinking
Student Documentation

I controlled the blink of led according to my time (4 sec and 2 sec) which was felt quite simple after the projects done in challenge 7 and 8

Documented Jul 27, 2026 4:21 PM IST · Reviewed Aug 1, 2026 4:17 PM IST
Challenge 8

Fast Blink

Verified Doc 9/10 120 XP
Evidence
led blinking
Evidence
led not blinking
Student Documentation

I learnt how to fasten the speed of the blinking of led. I learnt that the time in code is written in milliseconds.

Documented Jul 27, 2026 4:15 PM IST · Reviewed Aug 1, 2026 4:18 PM IST
Challenge 7

Slow Blink

Verified Doc 9/10 110 XP
Evidence
led blinking
Evidence
led not blinknig
Student Documentation

I learnt to decrease the blinking speed of a led. I learnt to understand the led blink code

Documented Jul 23, 2026 4:33 PM IST · Reviewed Aug 1, 2026 4:22 PM IST
Challenge 6

Breadboard Master

Verified Doc 9/10 100 XP
Evidence
led not blinknig
Evidence
led blinking
Student Documentation

I learnt making a circuit consisting of 8 blinking leds which blink in sync. In the project some leds were not working as they probably got overpowered.

Documented Jul 23, 2026 4:28 PM IST · Reviewed Aug 1, 2026 4:23 PM IST
Challenge 5

Breadboard Layout Explorer

Verified Doc 9/10 90 XP
Evidence
led not blinknig
Evidence
led blinking
Student Documentation

I created a 5 led blinking project where I learnt to connect the side power rails to middle power rails.

Documented Jul 23, 2026 4:09 PM IST · Reviewed Aug 1, 2026 4:23 PM IST
Challenge 4

Four LEDs on the Breadboard

Verified Doc 9/10 80 XP
Evidence
led not blinknig
Evidence
led blinking
Student Documentation

I learnt to connect 4 different leds on breadboard and connect it with arduino to power it. The leds were blinking in a sync

Documented Jul 23, 2026 3:55 PM IST · Reviewed Aug 1, 2026 4:23 PM IST
Challenge 3

Explore the Breadboard Power Rails

Verified Doc 9/10 70 XP
Evidence
led not blinknig
Evidence
led blinking
Student Documentation

I understood the power rails in a breadboard.

Documented Jul 23, 2026 3:47 PM IST · Reviewed Aug 1, 2026 4:23 PM IST
Challenge 2

First Breadboard Circuit

Verified Doc 9/10 60 XP
Evidence
led not blinknig
Evidence
led blinking
Student Documentation

I started using breadboard and connect it with arduino through jumper wires.

Documented Jul 23, 2026 3:42 PM IST · Reviewed Aug 1, 2026 4:23 PM IST
Challenge 1

Blink Your First LED

Verified Doc 9/10 50 XP
Evidence
led blinking
Evidence
led not blinking
Student Documentation

I built a simple arduino connected blinking led. I understood that the shorter wire which is the negative terminal always goes in the GND

Documented Jul 23, 2026 3:34 PM IST · Reviewed Aug 1, 2026 4:23 PM IST