Blog Archive

Thursday, May 21, 2026

Mastering Raspberry Pi 4: Essential Features, Uses & Real-World Applications for Students

                 Raspberry Pi 





Why Raspberry Pi Still Matters in 2026

 

The Raspberry Pi has evolved far beyond being just a hobbyist’s toy—it has become a powerful, compact computing platform capable of handling real-world applications. From acting as a media center or file server to running retro gaming systems, home automation hubs, and even network-level ad blockers, its versatility continues to attract developers, students, and innovators alike. And that’s only scratching the surface.
What truly sets the Raspberry Pi apart is how creatively it’s being used today. Developers have built everything from DIY smartphones and edge-AI systems to robots and high-altitude experiments that capture images from near space. With the increasing demand for low-cost computing in domains like IoT, embedded AI, and education, Raspberry Pi has positioned itself as a bridge between learning and real-world deployment.
At the heart of this transformation is the Raspberry Pi 4, which delivers a significant leap in performance and capability. Powered by a quad-core Cortex-A72 processor and up to 8GB RAM, it now offers performance comparable to entry-level desktop systems. It supports dual 4K displays, hardware video decoding, faster data transfer via USB 3.0, and true Gigabit Ethernet—making it suitable for both personal and professional workloads.
 
 
 
 




Another major advantage is its connectivity and ecosystem. With built-in Wi-Fi, Bluetooth 5.0, multiple USB ports, and a 40-pin GPIO header, it seamlessly integrates with sensors, actuators, and external devices. Whether you're building an AI-powered drone controller, a smart home system, or an embedded signal processing unit, the Raspberry Pi provides a flexible and scalable platform.
In today’s landscape of AI, automation, and edge computing, Raspberry Pi is no longer just an experimental board—it’s a serious development tool. Its affordability, strong community support, and compatibility with modern software stacks make it an ideal choice for learners, startups, and engineers working on innovative solutions.
Simply put, if you want to turn ideas into working prototypes quickly—and at low cost—the Raspberry Pi remains one of the best platforms to start with.








🔹 Real-World Applications of Raspberry Pi


The true strength of the Raspberry Pi lies in its ability to power a wide range of real-world applications across different domains. In the world of IoT, it acts as a central controller for smart homes—managing sensors, security cameras, and automation systems with ease. For entertainment enthusiasts, it transforms into a compact media center or a retro gaming console, bringing classic gaming experiences back to life. 










In robotics, Raspberry Pi serves as the brain behind autonomous systems, enabling tasks like object detection, navigation, and remote control. Additionally, it is widely used in building personal servers, network monitoring tools, and edge computing devices. This flexibility makes Raspberry Pi not just a learning tool, but a practical solution for developing innovative, real-time applications.






🔹 Performance & Hardware Features


The Raspberry Pi 4 represents a significant leap in performance and hardware capability compared to its predecessors. Powered by a 1.5GHz quad-core Cortex-A72 processor and supported by up to 8GB of LPDDR4 RAM, it delivers computing power comparable to entry-level desktop systems. This makes it capable of handling multitasking, lightweight AI workloads, and even full desktop environments smoothly. The inclusion of USB 3.0 ports enables faster data transfer, while true Gigabit Ethernet ensures high-speed network connectivity for server and IoT applications. 

 
 
 
 
One of its standout features is dual micro-HDMI support, allowing dual 4K display output, which is remarkable for a compact single-board computer. Additionally, with built-in Wi-Fi, Bluetooth 5.0, and a versatile 40-pin GPIO header, the Raspberry Pi seamlessly connects with external devices, sensors, and peripherals—making it a powerful platform for both development and deployment.
 
 
 
 
 









🔹 Raspberry Pi in AI, IoT & Edge Computing


The Raspberry Pi has emerged as a powerful platform in the fields of Artificial Intelligence (AI), Internet of Things (IoT), and edge computing, enabling developers to build intelligent systems directly at the device level. In AI applications, it can run lightweight machine learning models for tasks such as image recognition, speech processing, and predictive analytics, especially when paired with accelerators like GPUs or TPUs. In IoT ecosystems, Raspberry Pi acts as a central hub that collects, processes, and transmits data from multiple sensors, making it ideal for smart homes, industrial monitoring, and environmental sensing. 










Its role in edge computing is particularly significant, as it allows data processing to happen closer to the source rather than relying entirely on cloud infrastructure—reducing latency, improving privacy, and enabling real-time decision-making. This combination of affordability, flexibility, and computing capability makes Raspberry Pi a key enabler for next-generation intelligent systems.








🔹 Development & Learning Ecosystem


One of the strongest advantages of the Raspberry Pi is its rich development and learning ecosystem, which makes it accessible to beginners while still powerful enough for advanced users. Supported by a massive global community, it offers extensive documentation, tutorials, and open-source projects that help users quickly move from basic experiments to complex system design. Students and developers can easily learn programming languages like Python, C++, and Java while working on real hardware projects involving sensors, robotics, and embedded systems. 





The availability of tools, libraries, and operating systems such as Raspberry Pi OS further simplifies development and deployment. Whether used in classrooms, research labs, or personal DIY setups, Raspberry Pi provides a hands-on learning experience that bridges the gap between theory and practical implementation—making it an ideal platform for innovation, prototyping, and skill development in modern technologies.
 



 
 
 
 
 
 
For students, the Raspberry Pi is an excellent platform to start learning technology in a practical and engaging way. It allows them to move beyond theory and actually build real projects—whether it’s blinking an LED, creating a small robot, or developing a simple AI application. With easy access to programming languages like Python and a wide range of beginner-friendly tutorials, students can quickly understand concepts such as coding, electronics, and system design. The low cost of Raspberry Pi also makes it accessible for school and college projects, encouraging experimentation without heavy investment. Most importantly, it helps students develop problem-solving skills, creativity, and hands-on experience, which are essential for careers in fields like AI, robotics, IoT, and embedded systems.






🔹 Conclusion




The Raspberry Pi has transformed from a simple educational tool into a powerful and versatile computing platform that supports innovation across multiple domains. Whether it is used for learning programming, building IoT systems, developing AI-based applications, or creating personal tech projects, it offers unmatched flexibility at an affordable cost. Its strong ecosystem, continuous hardware improvements, and real-world applicability make it an ideal choice for students, developers, and innovators alike. As technology continues to evolve toward automation and edge intelligence, the Raspberry Pi stands out as a reliable platform to experiment, prototype, and bring ideas to life.

 






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Wednesday, May 20, 2026

NVIDIA Jetson Nano: Small Device, Big AI Power

 

 

 🚀 NVIDIA Jetson Nano: Small Device, Big AI Power

The NVIDIA Jetson Nano is a small, powerful computer designed for Artificial Intelligence (AI) and embedded systems. It is widely used by students, developers, and researchers to build real-world AI projects.

If you want to run AI models on a small device instead of a big computer, Jetson Nano is one of the best options.

 




🤖 What is Jetson Nano?

Jetson Nano is a single-board computer (like Raspberry Pi), but much more powerful for AI tasks.

It can:

  • Run AI models
  • Process images and videos
  • Control robots and drones

👉 In simple words:
Jetson Nano = Mini AI supercomputer

 

⚙️ Key Features

  • Quad-core ARM CPU
  • 128-core GPU (NVIDIA CUDA support)
  • 4GB RAM
  • Supports Linux (Ubuntu-based OS)
  • Low power consumption

 



🧠 Why Jetson Nano is Popular in AI

Jetson Nano is designed for edge AI, meaning AI runs directly on the device instead of cloud.

Benefits:

  • Faster processing (real-time)
  • No internet dependency
  • Better privacy

It supports tools like:

  • Python
  • PyTorch
  • TensorFlow
  • OpenCV

 




💡 Applications of Jetson Nano

🎥 Computer Vision

 

  •  Face recognition
  • Object detection
  • Smart surveillance
  •  





     🚁 Robotics & Drones

     

     

  •  Autonomous drones
  • Robot navigation
  • Obstacle detection
  •  





     🎙️ Audio & Speech Processing

     

      

     

  • Noise cancellation (ANC)
  • Speech recognition
  • Voice assistants
  •  

     




    🛠️ How to Start with Jetson Nano

    1. Buy Jetson Nano Developer Kit
    2. Install JetPack SDK (official OS)
    3. Connect keyboard, mouse, monitor
    4. Start with Python + OpenCV
    5. Run AI models (like object detection)

     





    🔥 Why Developers Love Jetson Nano

    • Affordable AI hardware
    • Easy to learn
    • Strong community support
    • Perfect for real-time AI projects

     





    ⚠️ Limitations

    • Limited RAM (4GB)
    • Not suitable for very large AI models
    • Needs cooling for heavy tasks

     




    📈 Future Scope

    Jetson Nano is widely used in:

    • Smart cities
    • Defence systems
    • Autonomous vehicles
    • Industrial automation

    It is a great starting point before moving to advanced boards like Jetson Orin.

     



     🏁 Conclusion

    The NVIDIA Jetson Nano is one of the best platforms to start learning and building AI projects.

    If you want to combine AI + embedded systems + real-time processing,


    👉 Jetson Nano is the perfect choice.

     

     

    Tuesday, May 19, 2026

    What is ChatGPT? A Simple Guide for Everyone


     




    What is ChatGPT? A Simple Guide for Everyone

    In today’s fast-moving digital world, you’ve probably heard people talking about ChatGPT. But what exactly is it? Is it a robot, a search engine, or something more?

    Let’s break it down in the simplest way possible.





    💡 Understanding ChatGPT in Simple Words

    ChatGPT is an artificial intelligence (AI) tool that can talk to you like a human. You can ask it questions, request help with writing, solve coding problems, or even just have a conversation.

    Think of it as a smart assistant that understands your language and responds instantly.





    🧠 How Does ChatGPT Work?

    ChatGPT is built using advanced AI technology called language models. It has been trained on a huge amount of text data from books, websites, and other sources.

    This allows it to:

    • Understand what you are asking
    • Predict the best possible answer
    • Respond in a natural, human-like way

    It doesn’t “think” like a human, but it is very good at recognizing patterns in language.





    📱 What Can You Do with ChatGPT?

    ChatGPT is useful in many everyday situations:

    ✍️ Writing Help

    • Blogs, emails, assignments
    • Resume and cover letters

    💻 Coding Assistance

    • Debug errors
    • Generate code
    • Explain complex logic

    📚 Learning & Education

    • Explain concepts in simple terms
    • Help with homework
    • Provide step-by-step solutions

    🧩 Problem Solving

    • Brainstorm ideas
    • Plan projects
    • Give suggestions







    🌍 Why is ChatGPT So Popular?

    The main reason behind its popularity is simplicity and power combined.

    • No technical knowledge required
    • Instant responses
    • Works for students, professionals, and businesses
    • Saves time and effort

    It has become a daily tool for millions of people worldwide.







    ⚠️ Things to Keep in Mind

    While ChatGPT is powerful, it’s not perfect:

    • It can sometimes give incorrect answers
    • It doesn’t have real-time awareness unless updated
    • You should always verify important information

    Think of it as a helper, not a final authority.







    🚀 The Future of ChatGPT

    AI tools like ChatGPT are improving rapidly. In the future, they will:

    • Become more accurate
    • Understand emotions better
    • Work with voice, images, and video
    • Assist in advanced fields like healthcare, defense, and engineering








    🏁 Conclusion

    ChatGPT is not just a trend—it’s a glimpse into the future of human-machine interaction. Whether you are a student, developer, or business owner, it can make your work easier and faster.

    NVIDIA: Powering the Future of AI and Computing

     



    NVIDIA: Powering the Future of AI and Computing

    When people talk about Artificial Intelligence, gaming, or high-performance computing, one name always comes up — NVIDIA.

    But what exactly is NVIDIA, and why is it so important today? Let’s understand in simple terms.


    🤖 What is NVIDIA?

    NVIDIA is a technology company that designs powerful computer chips called GPUs (Graphics Processing Units).

    Originally, GPUs were used for:

    • Gaming graphics 🎮
    • Video rendering 🎬

    But today, they are the backbone of AI, machine learning, and data centers.


    🧠 Why NVIDIA is Important in AI

    Modern AI systems like chatbots, image generators, and voice assistants need massive computing power.

    This is where NVIDIA comes in.

    Their GPUs are used to:

    • Train AI models (Deep Learning)
    • Run large language models (LLMs)
    • Process huge datasets quickly

    In simple words:
    👉 AI brains run on NVIDIA hardware


    🔥 Key Technologies from NVIDIA

    1. GPUs (Graphics Processing Units)

    • Faster than CPUs for parallel processing
    • Used in AI, gaming, and simulations

    2. CUDA Platform

    • A programming platform that allows developers to use GPU power
    • Widely used in AI and scientific computing

    3. AI Chips (H100, A100)

    • Special chips designed for deep learning and generative AI
    • Used by companies building tools like AI assistants

    💡 Where NVIDIA is Used

    🧠 Artificial Intelligence

    • Chatbots and virtual assistants
    • Image & video generation
    • Speech recognition

    🎮 Gaming

    • Realistic graphics
    • Ray tracing technology

    🚗 Autonomous Vehicles

    • Self-driving car systems
    • Real-time decision making

    ☁️ Cloud Computing

    • Data centers powered by GPUs
    • AI services at scale

    📈 Why NVIDIA is Trending 

    NVIDIA is one of the hottest topics because:

    • AI demand is exploding
    • Companies need high-performance computing
    • Generative AI tools are growing rapidly

    Big tech companies depend on NVIDIA hardware for:

    • Training AI models
    • Running large-scale applications

    ⚠️ Challenges

    Even with its success, NVIDIA faces:

    • High cost of AI hardware
    • Global chip supply issues
    • Strong competition from AMD, Intel

    🛠️ Future of NVIDIA

    NVIDIA is moving beyond just hardware:

    • AI platforms and software ecosystems
    • Digital twins and simulation
    • Edge AI (Jetson for drones, robotics)

    👉 This makes NVIDIA not just a chip company, but a complete AI technology provider.


    🏁 Conclusion

    NVIDIA is one of the most important companies driving the AI revolution. From powering chatbots to enabling self-driving cars, its technology is everywhere.

    If AI is the future,
    👉 NVIDIA is the engine behind it.



    Rise of AI & Generative AI: Transforming the Digital World


     

      

     

     

     

    🚀 The Rise of AI & Generative AI: Transforming the Digital World 

    Artificial Intelligence (AI) is no longer a futuristic concept—it is the backbone of modern technology. From smart assistants to autonomous systems, AI is redefining how we interact with machines. Among its many branches, Generative AI has emerged as the most disruptive force, enabling machines to create content, solve problems, and even innovate.

     

     

     

     

     

    🤖 What is Artificial Intelligence? 

    Artificial Intelligence refers to systems that can perform tasks typically requiring human intelligence, such as:

    • Learning from data
    • Recognizing patterns
    • Making decisions
    • Understanding language

    AI powers technologies like recommendation systems, speech recognition, and autonomous vehicles.

     

     

     

     

     

    🎨 What is Generative AI?

    Generative AI is a subset of AI that focuses on creating new content instead of just analyzing data. It can generate:

    • Text (blogs, code, emails)
    • Images (art, design, medical imaging)
    • Audio (speech, music)
    • Video (animations, simulations)

    This is made possible using advanced models like:

    • Large Language Models (LLMs)
    • Diffusion models
    • GANs (Generative Adversarial Networks)

     

     

     

     

     

    🔥 Why Generative AI is Trending 

    Generative AI is dominating search trends due to its real-world applications:

    1. Content Creation at Scale

    Businesses now use AI to generate blogs, marketing content, and social media posts instantly.

    2. AI Coding Assistants

    Developers use AI tools to:

    • Write code
    • Debug errors
    • Optimize performance

    3. Personalized User Experience

    AI can tailor:

    • Learning paths
    • Shopping recommendations
    • Digital assistants

    4. Automation of Complex Tasks

    From legal document drafting to medical diagnostics, AI is reducing human workload significantly.

     

     

     

     

     

     

    🧠 Key Technologies Behind Generative AI

    🔹 Large Language Models (LLMs)

    These models are trained on massive datasets to understand and generate human-like text.

    🔹 Transformer Architecture

    The core technology enabling models to process context and relationships in data.

    🔹 Diffusion Models

    Used for generating realistic images and videos.

     

     

     

     

     

     

    💡 Real-World Applications

    🏥 Healthcare

    • AI-assisted diagnosis
    • Medical image generation
    • Drug discovery

    🎓 Education

    • AI tutors
    • Personalized learning
    • Automated grading

    🛡️ Defense & Security

    • Signal processing
    • UAV swarm intelligence
    • Noise cancellation (ANC systems)

    🎙️ Audio & Speech Processing

    • Speech enhancement
    • Noise suppression 
    • Voice cloning

     

     

     

     

     

    ⚠️ Challenges of Generative AI

    Despite its power, Generative AI comes with concerns:

    • Data Privacy Risks
    • Bias in AI Models
    • Deepfakes and Misinformation
    • High Computational Cost

    Responsible AI development is critical to address these issues

     

     

     

     

     

    📈 Future Trends to Watch

    In the coming years, expect major advancements in:

    • AI Agents (autonomous decision-making systems)
    • Multimodal AI (text + image + audio combined)
    • Edge AI (deployment on devices like Jetson, mobile, drones)
    • Explainable AI (transparent decision-making)






    🏁 Conclusion

    AI and Generative AI are not just trends—they are shaping the future of technology. Whether you're a developer, researcher, or entrepreneur, understanding these technologies will give you a significant advantage in the digital era.

    The best time to start is now.

    Saturday, May 1, 2021

    Fundamentals of RS-422: Serial Data Standard (Basics)

     INTRODUCTION TO RS-422: Serial Data Standard

    What is the meaning of Rs-422?

    Recommended Standard 422
    Recommended Standard 422 (ANSI/EIA standard for serial data transmission)

    In 1975, the first version of the RS-422 was released. RS422 was created to allow for faster data transmission over serial data lines than RS232 does. RS-422 is an upgraded design of RS-232 that uses twisted pair cable and signal balancing to allow up to 10 transceivers while only supporting a single transmitter. Longer distances can also be compensated. Because of the differential signal and other methods used, RS422 has even faster data rates than RS232.

    At distances of up to 50 feet, RS422 can deliver data rates of up to 10 Mbps (15.24 metres). However, RS422 can transmit data over distances of 4000 feet (1220 metres) using reduced data rates: the limit is 100 kbps.

    Data can be transmitted using balanced or differential signalling, with unidirectional/non-reversible, terminated or non-terminated transmission lines, point to point, or multi-drop transmission lines. RS-422/V.11, unlike EIA-485, allows only multiple receivers, not multiple drivers.

    RS422 9 Pin connector (DB-9)


    The main features of the three protocols are summarised in the table below:


    Thursday, April 29, 2021

    RS-232 STANDARDS, PIN DETAILS, BAUD RATE AND CABLE LENGTH

     

    RS-232 INTERFACE



    The Electronic Industries Association (EIA) represents serial data exchange joining two devices as the RS-232 interface. The EIA created it to standardize the link of computers to telephone connection modems. The specification allows for up to 20 signals to be identified, but the user has full control. Send data, receive data, and the signal ground is all that is needed. The remaining lines can be permanently turned on or off. The signal transmission requiring two voltages of opposite polarity ranging from 5 to 25 volts.

                                                           
    Fig-01 Direct-to-computer RS-232 Interface

    Communication Standards


    According to industry standards, an asynchronous word consists of a start bit, seven or eight data bits, parity bit (optional), and one or two stop bits. The computer determines the baud rate at which the word is sent. The baud rate, which can range from 0 to 7, is normally 150 times an integer power of two (150, 300, 600,...., 19,200 ). Many system-unique rates are used below 150 baud. The basic RS-232-C connector has 25 pins, with 21 of them being used by the standard. When a computer node is connected straight away to a computer, many of the modem signals are not required, and Fig-01 shows how some of the "spare" pins can be linked if they are not required. Fig-01 also shows the pin numbering used with the original DB-25 connector and the pin numbering now widely used for the DB-9 (D type 9 Pin connector) connector used in most modern computers.


     
    Fig-02 RS-232 Serial Port



    Fig-03 Serial Port Pin and Signal Assignments


    Maximum Baud Rate and Cable Length


    One of the most hotly debated topics in the RS232 world is cable length. The response is clear in the standard: the maximum cable length is 50 feet, or the cable length equal to 2500 pF capacitance. The latter rule is often overlooked. This ensures that using a low capacitance cable helps you to span longer distances without exceeding the standard's limitations. The maximum wire length allowed is ~147 feet when using UTP CAT-5 cable.

    The standard sets a cable length that provides for the fastest possible transmission. When the speed is reduced by a factor of two or four, the overall length increases dramatically.

    Years ago, Texas Instruments conducted several practical tests at various baud rates to determine the maximum cable lengths that could be used. Remember that the RS232 standard was created with a data rate of 20 kbps. By reducing the maximum transmission speed, the possible cable length increased by 10!



    Fig-04 RS 232 Data Rate and Cable Length
















    1. USB to RS232 Adapter with PL2303 Chipset, CableCreation 6.6 ft USB 2.0 Male to RS232 Female DB9 Serial Converter Cable for Cashier Register, Modem, Scanner, Digital Cameras, CNC,Black

    2. CableCreation USB to RS232 Adapter (FTDI Chipset), CableCreation 3 Feet RS-232 Male DB9 Serial Converter Cable for Windows 10, 8.1, 8,7, Vista, XP, 2000, Linux, Mac OS X 10.6 and Above,1M / Black

    3. Moxa UPort 1110 1 Port RS232 to USB Converter 2.0 Adapter

    4. DTECH USB to RS422 RS485 Serial Port Converter Adapter Cable with FTDI Chip Supports Windows 10, 8, 7, XP and Mac (1.2m)

     

    5. RS232 to RS485 / RS422 Serial Communication Data Converter Adapter Mini-Size

     

     


    Wednesday, April 28, 2021

    Arduino UNO for Middle school, High school, and University Students

    ARDUINO UNO

     

    The Arduino UNO is the perfect board for beginners who want to learn about electronics and programming. The UNO is the most stable board you can start with if this is your first time tinkering with the platform. The Arduino UNO is the most famous and well-documented board in the Arduino family.


    FUTURE ENGINEERS, SCIENTISTS AND ARTISTS SHOULD BE EMPOWERED

    Arduino Education develops the next wave of STEAM services to support students as they progress through middle school, high school, and university.


    Arduino Uno R3

    The Arduino Uno R3 is a microcontroller board based on the ATmega328P. It comes with everything you need to support the microcontroller; all you have to do is plug it into a PC via USB and power it up with an AC-DC adapter or a battery to get started. Uno is an Italian word that means "one" and was chosen to commemorate the release of Arduino's IDE 1.0 programme.




    Arduino Uno R3 Specifications

    The Arduino Uno R3 board includes the following specifications.

    • Microcontroller ATmega328P 
    • Input voltage span from 7V to 12V
    • The operating voltage of the Arduino is 5V
    • Digital input and output pins 
    • Analog Input pins 
    • DC Current used for 3.3V Pin is 50 mA
    • DC Current for each I/O Pin is 20 mA
    • SRAM is 2 KB
    • ROM Memory is 32 KB 
    • boot loader memory 0.5 KB 
    • EEPROM is 1 KB
    • In-Built LED
    • The clock speed is 16 MHz
    • Arduino board weight is ~25 g
    • Dimensions of the Board are 68.6 mm X 53.4 mm

    Arduino UNO Pinout Diagram





    Digita Channel

    Pin Details
    Description
    Remarks
    D0
    Pin 0
    Serial UART (Receive pin)
    D1
    Pin 1
    Serial UART(Transmit pin)
    D2
    Pin 2
    Interrupt Channel 0
    D3
    Pin 3
    Interrupt Channel 1
    D4
    Pin 4
    D5
    Pin 5
    D6
    Pin 6
    D7
    Pin 7
    D8
    Pin 8
    D9
    Pin 9
    D10
    Pin 10
    Slave Pin
    D11
    Pin 11
    MOSI
    SPI Master Out-Slave In
    D12
    Pin 12
    MISO
    SPI Master In-Slave Out
    D13
    Pin 13
    SCK
    SPI Clock




    Analog Channel 

    Pin Details
    Description
    Remarks
    A0
    Pin 0
    A1
    Pin 1
    A2
    Pin 2
    A3
    Pin 3
    A4
    Pin 4
    -
    A5
    Pin 5
    -



    Power Pins

    Pin Details                                            Remarks
    GND                                                        Ground
    RESET                                                     Reset



    5V
    5V Source
    3.3V
    3.3V Source












    1. RoboCraze UNO R3 SMD Board compatible with Arduino | Development Board with USB cable

    2. Arduino UNO R3 Original | Genuine Arduino UNO Board with DIP ATmega328P

    3. UNO Robotics Kit compatible with Arduino IDE

     

    4. Multipurpose Starter Kit for Arduino IDE- NODEMCU (IOT) - Robotics For Beginners 

    5. Quad Store LEVEL-2 kit with RFID and bluetooth compatible with Arduino IDE and Uno R3