🚀 Arduino Explorer: 30 Days 30 Sensors

Welcome to Arduino Explorer: 30 Days 30 Sensors — a hands-on journey where I explore one new Arduino-compatible sensor each day for 30 days.
The goal? Learn by doing, document every step, and build a solid open-source hardware portfolio along the way.

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📌 Project Goals

• Build 30+ real-world sensor-based mini projects
• Learn and apply Arduino basics to advanced interfacing
• Share detailed documentation for each day
• Help beginners and enthusiasts start their Arduino journey
• Encourage open collaboration and contributions

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🧠 What’s Inside

Each day’s folder (e.g., Day01_IR_Sensor/) contains:

File	Purpose
ir_sensor.ino	Arduino source code
README.md	Quick intro and purpose of that sensor
Code_Explanation.md	Full code walkthrough with comments
requirements.md	Hardware and library requirements
wiring_diagram.png	Visual wiring layout
Schematic View.pdf	Electronic schematic
Screenshot 1.png	Working screenshot
Screenshot 2.png	Serial monitor / live output
Tinkercad_Simulation_Guide.md	Simulation setup instructions

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🛠️ Requirements

• Arduino Nano (or Uno, Mega, etc.)
• Jumper Wires, Breadboard
• Sensor modules (See requirements.md inside each folder)
• Arduino IDE or PlatformIO
• Basic electronics knowledge (resistors, pins, GND/VCC, etc.)

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🗂️ Folder Structure

Arduino-Explorer-30Days30Sensors/
│
├── README.md
│
├── Day01_IR_Sensor/
│ ├── ir_sensor.ino
│ ├── README.md
│ ├── Code_Explanation.md
│ ├── requirements.md
│ ├── wiring_diagram.png
│ ├── Schematic View.pdf
│ ├── Screenshot 1.png
│ ├── Screenshot 2.png
│ └── Tinkercad_Simulation_Guide.md
│
├── Day02_LDR_Sensor/
│ ├── ldr_sensor.ino
│ ├── README.md
│ ├── Code_Explanation.md
│ ├── requirements.md
│ ├── wiring_diagram.png
│ ├── Schematic View.pdf
│ ├── Screenshot 1.png
│ └── Tinkercad_Simulation_Guide.md
│
├── Day03_DHT11_Sensor/
│ ├── dht11_sensor.ino
│ ├── README.md
│ ├── Code_Explanation.md
│ ├── requirements.md
│ ├── wiring_diagram.png
│ ├── Schematic View.pdf
│ └── Screenshot 1.png
│
├── Day04_Ultrasonic_Sensor/
│   ├── ultrasonic_sensor.ino
│   ├── README.md
│   ├── Code_Explanation.md
│   ├── requirements.md
│   ├── wiring_diagram.png
│   ├── Schematic View.pdf
│   ├── Screenshot 1.png
│   └── Tinkercad_Simulation_Guide.md
│
├── Day05_PIR_Motion_Sensor/
│ ├── pir_motion_sensor.ino
│ ├── README.md
│ ├── Code_Explanation.md
│ ├── requirements.md
│ ├── wiring_diagram.png
│ ├── Schematic View.pdf
│ ├── Screenshot 1.png
│ ├── Screenshot 2.png
│ └── Tinkercad_Simulation_Guide.md
│
├──Day06_Sound_Sensor/  
│ ├── sound_sensor.ino   
│ ├── Code_Explanation.md    
│ ├── requirements.md   
│ ├── READEME.md    
│ ├── wiring_diagram.png    
│ ├── Schematic View.pdf  
│ ├── Screenshot 1.png  
│ ├── Screenshot 2.png  
│ ├── connection_info.md   
│ └── Tinkercad_Simulation_Guide.md     
│
├──Day07_Gas_Sensor_MQ2/    
│ ├── gas_sensor_mq2.ino    
│ ├── Code_Explanation.md  
│ ├── connection_info.md   
│ ├── requirements.md  
│ ├── Tinkercad_Simulation_Guide.md  
│ ├── wiring_diagram.png  
│ ├── Schematic View.pdf  
│ ├── Screenshot 1.png  
│ ├── Screenshot 2.png  
│ └── README.md  
│
├──Day08_Tilt_Sensor/    
│ ├── tilt_sensor.ino    
│ ├── Code_Explanation.md  
│ ├── connection_info.md   
│ ├── requirements.md  
│ ├── Tinkercad_Simulation_Guide.md  
│ ├── wiring_diagram.png  
│ ├── Schematic View.pdf  
│ ├── Screenshot 1.png  
│ ├── Screenshot 2.png  
│ └── README.md  
│
├──Day09_Soil_Moisture_Sensor/    
│ ├── soil_moisture_sensor.ino    
│ ├── Code_Explanation.md  
│ ├── connection_info.md   
│ ├── requirements.md  
│ ├── Tinkercad_Simulation_Guide.md  
│ ├── wiring_diagram.png  
│ ├── Schematic View.pdf  
│ ├── Screenshot 1.png  
│ ├── Screenshot 2.png
│ ├── LU-5-R SPDT Relay.png   
│ └── README.md
│
├── Day10_...
...
└── LICENSE

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📚 Table of Contents

Day	Sensor Name	Folder
01	IR Obstacle Avoidance Sensor	Day01_IR_Sensor
02	LDR – Light Detection & Brightness Control	Day02_LDR_Sensor
03	DHT11 – Temperature & Humidity Sensor	Day03_DHT11_Sensor
04	HC-SR04 – Ultrasonic Distance Sensor	Day04_Ultrasonic_Sensor
05	HC-SR501 – PIR Motion Sensor	Day05_PIR_Motion_Sensor
06	KY-008 – Sound Sensor	Day06_Sound_Sensor
07	MQ2 – Gas Sensor	Day07_Gas_Sensor_MQ2
08	Tilt Sensor	Day08_Tilt_Sensor
09	Soil Moisture Sensor	Day09_Soil_Moisture_Sensor
...	...	...

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👨‍💻 How to Run

1. Clone the repository:

  git clone https://github.com/tanujkumar2405/Arduino-Explorer-30Days30Sensors

2. Open the .ino file inside Arduino IDE.

3. Select your board and port.

4. Upload the code and connect the hardware.

5.Watch the output (Serial Monitor or sensor response)!

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🔍 Simulate Online (Optional)

For supported sensors (e.g., Ultrasonic), you can simulate them on Tinkercad Circuits:

• Refer to Tinkercad_Simulation_Guide.md inside each folder for step-by-step instructions.

• No hardware needed—just drag & drop virtual components and run the simulation!

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🙋‍♂️ Questions or Suggestions?

If you face any issues, have suggestions, or want to contribute:
👉 Create a GitHub Issue

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📢 Connect With Me

I’d love to collaborate and help learners grow! Follow my GitHub journey, and if this helps you, give it a ⭐️

📧 Email: tanujkumar2405@gmail.com
🔗 LinkedIn: https://www.linkedin.com/in/tanuj-kumar-cybersecurity
🐙 GitHub: @tanujkumar2405

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🧾 License

This project is licensed under the MIT License – see the LICENSE file for details.

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"Turning everyday sensors into everyday learning."
— Tanuj Kumar