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How to interface LCD with Keypad module and Arduino. How to interface LCD with Keypad module and Arduino. Here’s a detailed step-by-step guide to get started with a Keypad module and Arduino Nano to display values on the serial monitor and an I2C LCD Description: In this tutorial, we will learn how to interface a Keypad module with an Arduino Nano and display the key presses on both the serial monitor and an I2C LCD. Follow these steps to get started: Materials Needed: - Arduino Nano - Keypad module (4x4 matrix) - I2C LCD (16x2) - Breadboard - Jumper wires - USB cable for Arduino Nano Step 1: Wiring the Keypad to Arduino Nano 1. Identify the pins: Most 4x4 keypads have 8 pins, organized in rows and columns. 2. Connect the Keypad to Arduino: - Connect the first pin of the keypad to D2 on the Arduino. - Connect the second pin of the keypad to D3 on the Arduino. - Connect the third pin of the keypad to D4 on the Arduino. - Connect the fourth pin of the keypad to D5 on the Arduino. - Connect the fifth pin of the keypad to D6 on the Arduino. - Connect the sixth pin of the keypad to D7 on the Arduino. - Connect the seventh pin of the keypad to D8 on the Arduino. - Connect the eighth pin of the keypad to D9 on the Arduino. Step 2: Wiring the I2C LCD to Arduino Nano 1. Identify the I2C pins on the LCD (usually labeled as GND, VCC, SDA, SCL). 2. Connect the I2C LCD to Arduino: - Connect GND on the LCD to GND on the Arduino. - Connect VCC on the LCD to 5V on the Arduino. - Connect SDA on the LCD to A4 on the Arduino. - Connect SCL on the LCD to A5 on the Arduino. Step 3: Installing Required Libraries 1. Open the Arduino IDE. 2. Install the Keypad library: - Go to `Sketch -> Include Library -> Manage Libraries`. - Search for "Keypad" and install the library by Mark Stanley and Alexander Brevig. 3. Install the LiquidCrystal I2C library: - Go to `Sketch -> Include Library -> Manage Libraries`. - Search for "LiquidCrystal I2C" and install the library by Frank de Brabander. Step 4: Writing the Code Here’s a sample code to read key presses from the keypad and display them on both the serial monitor and the I2C LCD. Step 5: Upload and Test 1. Connect your Arduino Nano to your computer using the USB cable. 2. Upload the code to the Arduino Nano. 3. Open the Serial Monitor from the Arduino IDE (`Tools -> Serial Monitor`) and set the baud rate to 9600. 4. Press the keys on the keypad. You should see the key presses displayed on both the serial monitor and the I2C LCD. Project Gallery All Documents : Download the below code to start exploring with the Keypad and LCD. Click Here to Download Download Video Tutorial : Conclusion : Congratulations! You have successfully interfaced a Keypad module with an Arduino Nano and displayed the values on both the serial monitor and an I2C LCD. Feel free to expand on this project by adding more functionality or experimenting with different types of keypads and displays. Also check our website for more projects and explore our Skill-Hub to enhance your skills in IoT and Embedded Sustems. comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

Know more about EmbeddedBrew Innovations and stay connected. < Back About Us Welcome to EmbeddedBrew, your go-to destination for learning about technology, embedded systems, and the Internet of Things (IoT). Founded by Rudra Swarup Sahoo, EmbeddedBrew is dedicated to providing top-notch educational resources and training to help you master the ever-evolving tech landscape. At EmbeddedBrew, we believe that knowledge is the key to innovation. Our mission is to empower individuals with the skills and understanding needed to thrive in today's technology-driven world. Whether you're a beginner looking to dive into the basics or an experienced professional seeking to enhance your expertise, we offer a range of courses and workshops tailored to your needs. Our comprehensive curriculum covers everything from fundamental concepts to advanced applications in embedded systems and IoT. Through hands-on projects, interactive lessons, and real-world examples, we aim to make learning engaging and effective. Our experienced instructors are passionate about sharing their knowledge and guiding you on your journey to success. We understand the importance of staying up-to-date with the latest advancements in technology. That's why we continuously update our course materials to reflect current trends and innovations. At EmbeddedBrew, you’ll not only gain technical skills but also learn to think critically and creatively to solve complex problems. Join our community of learners and embark on a journey of continuous growth and discovery. Whether you’re aiming to advance your career, build innovative projects, or simply satisfy your curiosity, EmbeddedBrew is here to support you every step of the way. Explore our courses, connect with like-minded individuals, and unlock your potential with EmbeddedBrew. Together, let's shape the future of technology. Our Mission To provide high-quality education in technology, embedded systems, and IoT, fostering innovation and empowering individuals to excel in their careers and personal projects. Our Vision To be a leading educational platform where learners can acquire cutting-edge skills, engage in lifelong learning, and contribute to technological advancements globally. --- EmbeddedBrew Innovations (Formerly Rudra DIY Crafts) Effective Date:[30/05/2024]

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Checkout these cool projects on different devices. Checkout These Catagories Circuit based Projects View Projects NodeMCU based Projects View Projects Raspberry-pi baseed Projects View Projects Arduino Based Projects View Projects ESP32 baseed Projects View Projects Miscellaneous Projects View Projects Play Video Play Video 00:27 EmbeddedBrew #arduinoproject #embeddedbrew Play Video Play Video 09:15 EmbeddedBrew Getting Started with a Dot Matrix Display || EmbeddedBrew || 2025 Welcome to EmbeddedBrew! In this video, we dive into the fascinating world of electronics with a comprehensive, step-by-step guide on how to create your very own electronics project. Whether you're a beginner or an experienced hobbyist, this tutorial is designed to help you bring your ideas to life. Blog : https://www.embeddedbrew.com/post/light-it-up-getting-started-with-dot-matrix-display-and-arduino-nano Stay tuned for next week's episode and join the conversation by leaving your comments below. We love hearing from you! 🔔 Don't forget to like, share, and subscribe to our channel! Your support helps us bring you the best tech content every week. Facebook - My FB page - https://www.facebook.com/Rudradiycrafts Twitter - My Twitter _ https://twitter.com/RudraSwarup99 Instagram - My ID - https://www.instagram.com/embedded.brew/ YouTube - Primary Channel - https://www.youtube.com/channel/UC5IzT-2CGZnPQhUKgmu5VXQ Second Channel - https://www.youtube.com/channel/UCDHcPoREcKbXRRB3VGVlohw So friends Thank you for watching EmbeddedBrew Ignite Curiosity. #EmbeddedBrew #dotmatrix #arduino Play Video Play Video 00:52 EmbeddedBrew #GY30.#TechReels #ArduinoProjects #LightSensor #GY30Sensor #IOTIndia #Embeddedbrew Play Video Play Video 12:55 EmbeddedBrew Getting Started with GY-30 Light Sensor Module || EmbeddedBrew || 2025 Welcome to EmbeddedBrew! In this video, we dive into the fascinating world of electronics with a comprehensive, step-by-step guide on how to create your very own electronics project. Whether you're a beginner or an experienced hobbyist, this tutorial is designed to help you bring your ideas to life. Blog : https://www.embeddedbrew.com/post/light-up-with-intelligence-getting-started-with-gy-30-light-sensor-and-arduino-nano-to-control-an-l Stay tuned for next week's episode and join the conversation by leaving your comments below. We love hearing from you! 🔔 Don't forget to like, share, and subscribe to our channel! Your support helps us bring you the best tech content every week. Facebook - My FB page - https://www.facebook.com/Rudradiycrafts Twitter - My Twitter _ https://twitter.com/RudraSwarup99 Instagram - My ID - https://www.instagram.com/embedded.brew/ YouTube - Primary Channel - https://www.youtube.com/channel/UC5IzT-2CGZnPQhUKgmu5VXQ Second Channel - https://www.youtube.com/channel/UCDHcPoREcKbXRRB3VGVlohw So friends Thank you for watching EmbeddedBrew Ignite Curiosity. #TuesdayTechBytes #EmbeddedBrew Play Video Play Video 06:00 EmbeddedBrew Alert System using Door Sensor || EmbeddedBrew Welcome to EmbeddedBrew! In this video, we dive into the fascinating world of electronics with a comprehensive, step-by-step guide on how to create your very own electronics project. Whether you're a beginner or an experienced hobbyist, this tutorial is designed to help you bring your ideas to life. Blog : https://www.embeddedbrew.com/post/unlocking-security-build-your-own-led-and-buzzer-alert-system-with-arduino-nano-door-sensor Stay tuned for next week's episode and join the conversation by leaving your comments below. We love hearing from you! 🔔 Don't forget to like, share, and subscribe to our channel! Your support helps us bring you the best tech content every week. Facebook - My FB page - https://www.facebook.com/Rudradiycrafts Twitter - My Twitter _ https://twitter.com/RudraSwarup99 Instagram - My ID - https://www.instagram.com/embedded.brew/ YouTube - Primary Channel - https://www.youtube.com/channel/UC5IzT-2CGZnPQhUKgmu5VXQ Second Channel - https://www.youtube.com/channel/UCDHcPoREcKbXRRB3VGVlohw So friends Thank you for watching EmbeddedBrew Ignite Curiosity. #TuesdayTechBytes #EmbeddedBrew #doorsensor Play Video Play Video 01:00 EmbeddedBrew #embeddedsystems #robotics #techinnovation #smartdoor #smartsecurity #halloween Play Video Play Video 12:25 EmbeddedBrew Face and Eye Detection Using ESP32-Cam || EmbeddedBrew Welcome to EmbeddedBrew! In this video, we dive into the fascinating world of electronics with a comprehensive, step-by-step guide on how to create your very own electronics project. Whether you're a beginner or an experienced hobbyist, this tutorial is designed to help you bring your ideas to life. Blog : https://www.embeddedbrew.com/post/face-detection-using-esp32-cam-and-python-on-thony-python-ide Stay tuned for next week's episode and join the conversation by leaving your comments below. We love hearing from you! 🔔 Don't forget to like, share, and subscribe to our channel! Your support helps us bring you the best tech content every week. Facebook - My FB page - https://www.facebook.com/Rudradiycrafts Twitter - My Twitter _ https://twitter.com/RudraSwarup99 Instagram - My ID - https://www.instagram.com/embedded.brew/ YouTube - Primary Channel - https://www.youtube.com/channel/UC5IzT-2CGZnPQhUKgmu5VXQ Second Channel - https://www.youtube.com/channel/UCDHcPoREcKbXRRB3VGVlohw So friends Thank you for watching EmbeddedBrew Ignite Curiosity. #EmbeddedBrew #esp32 #facedetection Play Video Play Video 00:31 EmbeddedBrew #embeddedbrew #arduinoproject #python #ai #artificialintelligence #facerecognition #eyerecognition Play Video Play Video 10:00 EmbeddedBrew DIY Mobile Controlled Spy Car using ESP32-Cam || EmbeddedBrew Welcome to EmbeddedBrew! In this video, we dive into the fascinating world of electronics with a comprehensive, step-by-step guide on how to create your very own electronics project. Whether you're a beginner or an experienced hobbyist, this tutorial is designed to help you bring your ideas to life. Blog : https://www.embeddedbrew.com/post/building-a-webserver-controlled-spy-car-with-esp32-cam-a-step-guide Stay tuned for next week's episode and join the conversation by leaving your comments below. We love hearing from you! 🔔 Don't forget to like, share, and subscribe to our channel! Your support helps us bring you the best tech content every week. Facebook - My FB page - https://www.facebook.com/Rudradiycrafts Twitter - My Twitter _ https://twitter.com/RudraSwarup99 Instagram - My ID - https://www.instagram.com/embedded.brew/ YouTube - Primary Channel - https://www.youtube.com/channel/UC5IzT-2CGZnPQhUKgmu5VXQ Second Channel - https://www.youtube.com/channel/UCDHcPoREcKbXRRB3VGVlohw So friends Thank you for watching EmbeddedBrew Ignite Curiosity. #embeddedbrew #esp32 #spycar Play Video Play Video 10:33 EmbeddedBrew How to do display Custom Animation on OLED !!! Welcome to EmbeddedBrew! In this video, we dive into the fascinating world of electronics with a comprehensive, step-by-step guide on how to create your very own electronics project. Whether you're a beginner or an experienced hobbyist, this tutorial is designed to help you bring your ideas to life. Blog : https://www.embeddedbrew.com/post/how-to-display-custom-animations-on-a-0-96-oled-with-arduino-nano Arduino Course : https://www.embeddedbrew.com/challenge-page/a52400b0-d2dd-4b9b-8f84-d22555a487e5 Stay tuned for next week's episode and join the conversation by leaving your comments below. We love hearing from you! 🔔 Don't forget to like, share, and subscribe to our channel! Your support helps us bring you the best tech content every week. Facebook - My FB page - https://www.facebook.com/Rudradiycrafts Twitter - My Twitter _ https://twitter.com/RudraSwarup99 Instagram - My ID - https://www.instagram.com/embedded.brew/ YouTube - Primary Channel - https://www.youtube.com/channel/UC5IzT-2CGZnPQhUKgmu5VXQ Second Channel - https://www.youtube.com/channel/UCDHcPoREcKbXRRB3VGVlohw So friends Thank you for watching EmbeddedBrew Ignite Curiosity. #embeddedbrew #oleddisplay #animation Play Video Play Video 00:54 EmbeddedBrew #SpyCar #EmbeddedSystems #TechInnovation #DIYTech #EmbeddedBrew #wificar Play Video Play Video 01:00 EmbeddedBrew The future of Fire Fighting is here #firefighter #robot #future

Getting Started with a Piezoelectric Disc and Arduino Getting Started with a Piezoelectric Disc and Arduino This blog post provides a step-by-step guide to getting started with a piezoelectric disc and Arduino, making it easy for beginners to follow and understand. Description: Are you ready to dive into the world of electronics with a simple yet fascinating project? In this guide, we'll show you how to use a piezoelectric disc with an Arduino. A piezoelectric disc can be used as a sensor to detect vibrations or as an actuator to produce sound. Let's get started! Materials Needed: - Arduino board (e.g., Arduino Uno) - Piezoelectric disc - Breadboard - Jumper wires - 1MΩ resistor (optional, for better signal quality) Step 1: Understand the Piezoelectric Disc A piezoelectric disc generates a small voltage when it experiences mechanical stress (like tapping or vibration). Conversely, applying a voltage to it can produce sound. In this project, we’ll use it as a sensor to detect vibrations. Step 2: Connect the Piezoelectric Disc to the Arduino 1. Wiring Setup: - Positive Lead (Red Wire): Connect the positive lead of the piezo disc to an analog input pin on the Arduino (e.g., A0). - Negative Lead (Black Wire): Connect the negative lead to the ground (GND) on the Arduino. 2. Optional Resistor (for stability): - Connect a 1MΩ resistor between the analog input pin (A0) and ground (GND). This helps to stabilize the signal from the piezo disc. Here’s a simple wiring diagram: Piezo Disc + ------ A0 (Analog Input) Piezo Disc - ------ GND (Ground) 1MΩ resistor -----A0 to GND Step 3: Test Your Setup 1. Upload the Code: Connect your Arduino to your computer and upload the code using the Arduino IDE. 2. Open Serial Monitor: Open the Serial Monitor (Tools > Serial Monitor) in the Arduino IDE. 3. Observe the Readings: Tap or gently knock near the piezo disc and observe the values printed in the Serial Monitor. Higher values indicate stronger vibrations. Step 4: Explore and Experiment Now that you have a basic setup, here are a few ideas to expand your project: - Sound Alarm: Use the piezo disc to trigger an alarm or buzzer when vibrations exceed a certain threshold. - Data Logging: Record the vibration data over time using an SD card module. - Interactive Projects: Incorporate the piezo disc into interactive art or DIY musical instruments. Project Gallery All Documents : Download the code to explore input and output applications of Piezo Sensor. Click Here to Download Download Video Tutorial : Conclusion : Using a piezoelectric disc with an Arduino is a great way to get started with electronics and sensor projects. With just a few components, you can create a variety of applications. Explore more projects on our website and continue your learning journey with Skill-Hub by EmbeddedBrew, where you can develop more skills in embedded systems. Happy building! comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

Here’s a step-by-step guide to monitor DHT sensor values on the Blynk app using Arduino How to Monitor DHT Sensor Values on the Blynk App Using Arduino Here’s a step-by-step guide to monitor DHT sensor values on the Blynk app using Arduino Description: In this tutorial, we will walk you through the steps to monitor DHT (Digital Humidity and Temperature) sensor values on the Blynk app using an Arduino board. This project allows you to remotely monitor the temperature and humidity data from the DHT sensor on your smartphone. Materials Needed: - Arduino board (e.g., Uno, Nano) - DHT11 or DHT22 sensor - Jumper wires - Breadboard - USB cable - Internet connection - Blynk app installed on your smartphone Step 1: Setting Up the Hardware 1. Connect the DHT Sensor to the Arduino: - DHT11/DHT22 Pin Configuration: - VCC to 5V or 3.3V pin on Arduino - GND to GND pin on Arduino - Data pin to a digital pin on Arduino (e.g., D2) DHT Sensor -> Arduino ------------------------ VCC -> 5V GND -> GND DATA -> D2 2. Wiring Diagram: Ensure you connect the pins correctly to avoid any damage to the sensor or the Arduino. Step 2: Setting Up the Blynk App 1. Download and Install the Blynk App: - Available on Google Play Store (Android) and Apple App Store (iOS). 2. Create a New Project: - Open the Blynk app and create a new project. - Choose your device (e.g., Arduino Uno). - Note the Auth Token sent to your email. 3. Add Widgets: - Add a “Gauge” or “Value Display” widget for temperature. - Add a “Gauge” or “Value Display” widget for humidity. - Configure the widgets to display values from virtual pins (e.g., V5 for temperature and V6 for humidity). Step 3: Programming the Arduino 1. Install the Required Libraries: - Open the Arduino IDE and install the following libraries: - Blynk library - DHT sensor library Sketch -> Include Library -> Manage Libraries... - Search for "Blynk" and install it. - Search for "DHT sensor library" and install it. 2. Write the Arduino Code: - Use the following sample code given below. - Replace `YourWiFiSSID`, `YourWiFiPassword`, and `YourAuthToken` with your actual WiFi credentials and Blynk Auth Token. 3. Upload the Code: - Connect your Arduino to your computer via USB and upload the code. Step 4: Monitoring the Data 1. Open the Blynk App: - Start the project by pressing the play button in the Blynk app. 2. View the Sensor Data: - The temperature and humidity values should now appear on the widgets you configured. - You can now monitor the DHT sensor values in real-time from your smartphone. Project Gallery All Documents : Download the code to get started with the project. Click Here to Download Download Video Tutorial : Conclusion : By following these steps, you have successfully set up a system to monitor DHT sensor values on the Blynk app using an Arduino. This project is a great way to learn about IoT and how to connect sensors to a mobile app for remote monitoring. Also check our website for more projects and explore Skill-Hub by EmbeddedBrew to enhance your Skills. Happy experimenting! comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

EmbeddedBrew. On your service to help you develop skills in Embedded Systems with Online IoT Workshops. Welcome To Embeddedbrew Read More Play Video Play Video 00:27 EmbeddedBrew #arduinoproject #embeddedbrew Play Video Play Video 09:15 EmbeddedBrew Getting Started with a Dot Matrix Display || EmbeddedBrew || 2025 Play Video Play Video 00:52 EmbeddedBrew #GY30.#TechReels #ArduinoProjects #LightSensor #GY30Sensor #IOTIndia #Embeddedbrew Play Video Play Video 12:55 EmbeddedBrew Getting Started with GY-30 Light Sensor Module || EmbeddedBrew || 2025 Play Video Play Video 06:00 EmbeddedBrew Alert System using Door Sensor || EmbeddedBrew Play Video Play Video 01:00 EmbeddedBrew #embeddedsystems #robotics #techinnovation #smartdoor #smartsecurity #halloween Play Video Play Video 12:25 EmbeddedBrew Face and Eye Detection Using ESP32-Cam || EmbeddedBrew Play Video Play Video 00:31 EmbeddedBrew #embeddedbrew #arduinoproject #python #ai #artificialintelligence #facerecognition #eyerecognition Home: Latest Videos View All Projects Home: About ABOUT US EmbeddedBrew: Your Gateway to Mastering Embedded Systems Welcome to EmbeddedBrew! It's a fantastic YouTube channel. Here, we help—whether you’re just starting or have lots of experience. We give you deep knowledge & handy skills about embedded systems. We aim to make it fun & informative! You can expect great tutorials, cool demonstrations, and reviews on the latest tech in embedded systems. Our goal? To inspire you to create your own projects and discover all the amazing stuff this field has to offer. More Info About the Founder EmbeddedBrew, led by Rudra Swarup Sahoo, is all about learning and growing together. Rudra is passionate about exploring new technologies and is always eager to learn more. He especially loves diving into the world of IoT and has taken part in many workshops and trainings to become an expert. Rudra is committed to innovation and making sure that EmbeddedBrew stays ahead in the tech world, providing valuable insights and exploration opportunities for everyone. Know More Home: About Home: Contact Contact us Want to learn more about EmbeddedBrew, our video library, and the latest updates? Don’t hesitate to get in touch. Join us in our social media and get the updates. Mail

How to make a Short range Radar using Arduino and Processing How to make a Short range Radar using Arduino and Processing Build a Radar System with Arduino, Servo Motor, Ultrasonic Sensor, and Processing Software Description: Here’s a detailed guide on how to create a radar system using Arduino, a In this project, we'll create a simple radar system using an Arduino, a servo motor, an ultrasonic sensor, and Processing software. This radar system will scan its surroundings and display the detected objects on a computer screen. Materials Needed - Arduino board (e.g., Arduino Uno) - Servo motor - Ultrasonic sensor (e.g., HC-SR04) - Breadboard and jumper wires - USB cable for Arduino - Computer with Arduino IDE and Processing software installed Step 1: Wiring the Components 1. Connect the Ultrasonic Sensor: - VCC to Arduino 5V - GND to Arduino GND - Trig to Arduino digital pin 9 - Echo to Arduino digital pin 10 2. Connect the Servo Motor: - VCC (usually red) to Arduino 5V - GND (usually black or brown) to Arduino GND - Signal (usually yellow or white) to Arduino digital pin 11 Step 2: Arduino Code 1. Open the Arduino IDE and create a new sketch. 2. Copy and paste the following code into the sketch: 3. Upload the code to your Arduino board. 4. Run the Processing sketch. Step 3: Testing and Calibration 1. Place the radar system in an open area where it can scan for objects. 2. Power up the Arduino and make sure it is connected to the computer. 3. Run the Processing sketch to visualize the radar data. Project Gallery All Documents : Step 1: Run Arduino Code Step 2: Run Processing Code Click Here to Download Download Video Tutorial : Conclusion : You have successfully built a radar system using Arduino, a servo motor, an ultrasonic sensor, and Processing software. This project can be a great foundation for more advanced radar and mapping systems. Experiment with different setups and improvements to further enhance your radar’s capabilities. Also check our website for other projects and explore Skill-Hub by EmbeddedBrew to enhance your embedded skills. comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

How to make a RFID based Door Unlocking System How to make a RFID based Door Unlocking System Learn to make a RFID based Door unlocking system using Arduino, LCD, RFID and Servo Description: Creating an RFID controlled door using a servo motor and an I2C LCD with Arduino can be a fun and rewarding project. Here are the steps you can follow: Step 1: Gather Materials - Arduino Uno or compatible board - RFID reader module (such as RC522) - Servo motor - I2C LCD display - RFID tags/cards - Jumper wires - Breadboard - Power source (battery or USB cable) Step 2: Set up the Circuit 1. Connect the RFID reader module to your Arduino using jumper wires. Wire connections typically include: - VCC to 3.3V or 5V on Arduino - GND to GND on Arduino - RST to digital pin on Arduino (e.g., pin 9) - IRQ (if available) can be left unconnected - MISO to digital pin 12 - MOSI to digital pin 11 - SCK to digital pin 13 - SDA to digital pin 10 2. Connect the servo motor to your Arduino: - Connect the red wire to 5V on Arduino - Connect the black wire to GND on Arduino - Connect the signal wire (usually orange or yellow) to a digital pin on Arduino (e.g., pin 6) 3. Connect the I2C LCD display to your Arduino: - Connect the VCC pin to 5V on Arduino - Connect the GND pin to GND on Arduino - Connect the SDA pin to the A4 (SDA) pin on Arduino - Connect the SCL pin to the A5 (SCL) pin on Arduino 4. Power up your Arduino using a suitable power source. Step 3: Install Required Libraries - Download and install the necessary libraries for the RFID reader module, servo motor, and I2C LCD display. You can find these libraries in the Arduino IDE Library Manager or download them from trusted sources online. Step 4: Write the Arduino Code - Write the Arduino code to control the RFID reader, servo motor, and LCD display. Here’s a basic outline of what the code should do: 1. Initialize the RFID reader module and LCD display. 2. Define the servo motor pin and create a servo object. 3. Set up functions to read RFID tags/cards and compare them with authorized tags. 4. If an authorized tag is detected, unlock the door by rotating the servo motor. 5. Display appropriate messages on the LCD display to provide feedback to the user. Step 5: Test the System - Upload the Arduino code to your Arduino board. - Test the RFID controlled door system by swiping authorized RFID tags/cards and observing the behavior of the servo motor and LCD display. Step 6: Install and Secure Components - Install the servo motor mechanism on your door to actuate the locking mechanism. - Mount the RFID reader module and LCD display in a suitable location near the door. - Secure all components and wiring to prevent damage or tampering. Project Gallery All Documents : Download the code to explore the working of RFID Door Unlocking system. Click Here to Download Download Video Tutorial : Conclusion : By following these steps, you can create your own RFID controlled door using a servo motor and I2C LCD with Arduino. Have fun experimenting and customizing your project! Also Check our website for more projects and explore Skill-Hub by EmbeddedBrew to enhance your Skills. comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

How to make a temperature sensor using LM35 and LCD Display. How to make a temperature sensor using LM35 and LCD Display. Here's a step-by-step guide to make a thermometer using an LM35 temperature sensor and displaying the value on an I2C LCD Description: In this project, we will create a simple thermometer using the LM35 temperature sensor and display the temperature readings on an I2C LCD. The LM35 is a precision temperature sensor that provides an analog output proportional to the temperature in Celsius. The I2C LCD simplifies wiring and coding by using only two data lines. Follow the steps below to build your thermometer. Materials Needed - LM35 Temperature Sensor - Arduino (Uno, Nano, etc.) - I2C LCD Display - Breadboard - Jumper wires Step 1: Connect the LM35 Sensor 1. Place the LM35 on the breadboard: - Ensure the flat side faces you for easy identification of pins. 2. Wire the LM35 to the Arduino: - Vcc (Pin 1): Connect to 5V on the Arduino. - Vout (Pin 2): Connect to A0 (analog pin) on the Arduino. - GND (Pin 3): Connect to GND on the Arduino. Step 2: Connect the I2C LCD Display 1. Identify the I2C Pins on the LCD: - Typically labeled as GND, VCC, SDA, and SCL. 2. Wire the I2C LCD to the Arduino: - GND: Connect to GND on the Arduino. - VCC: Connect to 5V on the Arduino. - SDA: Connect to A4 (on Uno) or corresponding SDA pin on your Arduino model. - SCL: Connect to A5 (on Uno) or corresponding SCL pin on your Arduino model. Step 3: Install Required Libraries 1. Open the Arduino IDE. 2. Install the LiquidCrystal_I2C library: - Go to Sketch > Include Library > Manage Libraries. - Search for "LiquidCrystal_I2C" and install it. Step 4: Write the Arduino Code Here is a sample code to read the temperature from the LM35 sensor and display it on the I2C LCD: Step 5: Upload the Code and Test 1. Connect your Arduino to the computer using a USB cable. 2. Open the Arduino IDE, select the appropriate board and port. 3. Upload the code to your Arduino. 4. Observe the temperature readings displayed on the I2C LCD. Project Gallery All Documents : Download the files and Enjoy with your Project. Click Here to Download Download Video Tutorial : Conclusion : You've successfully created a thermometer using an LM35 temperature sensor and an I2C LCD display. This project is a great introduction to working with analog sensors and I2C communication in Arduino. Explore further by calibrating your sensor or integrating additional features like data logging. For more exciting projects and tutorials, check out our website and explore the Skill-Hub by EmbeddedBrew to enhance your embedded systems knowledge. Happy building! comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

How to Find the I2C Address of an LCD and Display Text Using Arduino How to Find the I2C Address of an LCD and Display Text Using Arduino Here's a step-by-step guide for a blog on how to get the I2C address of an LCD using Arduino and then display some text on it Description: Interfacing an LCD with Arduino using I2C simplifies wiring and saves pin usage. In this tutorial, we'll guide you through finding the I2C address of your LCD and displaying text on it. Let's get started! Step 1: Gather Your Components - Arduino board (e.g., Uno, Nano) - I2C LCD (with an I2C backpack) - Jumper wires - Breadboard (optional) Step 2: Connect the LCD to the Arduino 1. Connect the I2C LCD to the Arduino: - GND to GND - VCC to 5V - SDA to A4 (Uno/Nano) or SDA pin - SCL to A5 (Uno/Nano) or SCL pin Step 3: Install the Necessary Libraries To interface with the I2C LCD, you'll need the LiquidCrystal_I2C library. Install it through the Arduino IDE: 1. Open Arduino IDE. 2. Go to Sketch > Include Library > Manage Libraries. 3. In the Library Manager, search for LiquidCrystal_I2C. 4. Install the library by Frank de Brabander. Step 4: Find the I2C Address To find the I2C address of your LCD, upload the following I2C scanner code to your Arduino: 1. Open the Arduino IDE and copy the above code into a new sketch. 2. Connect your Arduino to your computer and upload the sketch. 3. Open the Serial Monitor (Tools > Serial Monitor) and set the baud rate to 9600. 4. The Serial Monitor will display the I2C address of your LCD (e.g., 0x27 or 0x3F). Step 5: Display Text on the LCD Now that you have the I2C address, you can display text on the LCD. Use the following code as a template: 1. Replace `0x3F` with the address you found using the I2C scanner. 2. Upload the code to your Arduino. 3. Your LCD should display "Hello, World!" on the first line and "I2C LCD Demo" on the second line. Project Gallery All Documents : Download the files below to go ahead with the Project. Click Here to Download Download Video Tutorial : Conclusion : You’ve now successfully found the I2C address of your LCD and displayed text on it using an Arduino. This knowledge opens the door to many exciting projects where you can utilize LCDs to display information. Happy coding! comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.