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In this section learn to find the IP Address of a NodeMCU on the serial monitor of Arduino IDE Learn to find the IP Address of NodeMCU In this section learn to find the IP Address of a NodeMCU on the serial monitor of Arduino IDE Description: Finding the IP address of your NodeMCU is a crucial step in many IoT projects. Here’s a simple guide to help you obtain the IP address using the Arduino IDE and Serial Monitor. Step 1: Install the Necessary Software 1. Arduino IDE: Ensure you have the Arduino IDE installed on your computer. You can download it from the [Arduino website]( https://www.arduino.cc/en/software ). 2. ESP8266 Board Manager: Open the Arduino IDE, go to File > Preferences. In the “Additional Board Manager URLs” field, add the following URL: ` http://arduino.esp8266.com/stable/package_esp8266com_index.json` . Then, go to Tools > Board > Boards Manager, search for `ESP8266`, and install the package. Step 2: Connect Your NodeMCU 1. USB Connection: Connect your NodeMCU to your computer using a USB cable. 2. Select Board and Port: In the Arduino IDE, go to Tools > Board and select `NodeMCU 1.0 (ESP-12E Module)`. Then, go to Tools > Port and select the appropriate COM port your NodeMCU is connected to. Step 3: Write the Code Here is a simple code example to connect your NodeMCU to a Wi-Fi network and print its IP address:`` 1. Enter WiFi Credentials: Replace `your_SSID` and `your_PASSWORD` with your Wi-Fi network’s SSID and password. 2. Upload the Code: Click the upload button in the Arduino IDE to upload the code to your NodeMCU. Step 4: Open Serial Monitor 1. Open Serial Monitor: Once the code is uploaded, open the Serial Monitor by going to Tools > Serial Monitor in the Arduino IDE or by pressing `Ctrl + Shift + M`. 2. Set Baud Rate: Ensure the baud rate is set to `115200` in the Serial Monitor (matching the `Serial.begin(115200)` in the code). Step 5: View IP Address 1. Monitor Output: After opening the Serial Monitor, you should see a series of messages indicating the connection process. Once connected, the Serial Monitor will display the IP address assigned to your NodeMCU by the Wi-Fi network. Project Gallery All Documents : #include const char* ssid = "your_SSID"; // Replace with your WiFi SSID const char* password = "your_PASSWORD"; // Replace with your WiFi Password void setup() { Serial.begin(115200); // Start the Serial communication at 115200 baud WiFi.begin(ssid, password); // Connect to Wi-Fi network Serial.print("Connecting to "); Serial.print(ssid); while (WiFi.status() != WL_CONNECTED) { delay(1000); Serial.print("."); } Serial.println(); Serial.println("WiFi connected!"); Serial.print("IP address: "); Serial.println(WiFi.localIP()); // Print the IP address } void loop() { // Your code here } Click Here to Download Download Video Tutorial : Conclusion : By following these steps, you can easily find the IP address of your NodeMCU using the Serial Monitor in the Arduino IDE. This IP address is essential for various IoT applications, such as accessing your NodeMCU via a web browser or communicating with it over a network. For more checkout our website and enhance your skills at Skill-Hub by EmbeddedBrew. Happy learning! comments debug Comments Write a comment Write a comment あなたの思いをシェアしませんか 一番最初のコメントを書いてみましょう。

here's a step-by-step guide to get started with Blynk 2.0 and NodeMCU to control an LED Getting Started with New Blynk 2.0 with NodeMCU to control LED over the Internet here's a step-by-step guide to get started with Blynk 2.0 and NodeMCU to control an LED Description: In this tutorial, we'll walk you through the steps to control an LED using Blynk 2.0 with a NodeMCU, bypassing BlynkEdgent for a straightforward approach. Follow these steps to get your project up and running: Step 1: Gather Your Materials - NodeMCU (ESP8266) - LED - Resistor (220 ohms) - Breadboard - Jumper wires - USB cable for programming the NodeMCU - Computer with Arduino IDE installed Step 2: Set Up Blynk 2.0 Account 1. Create an Account: Sign up for a free account on [Blynk](https://blynk.io/). 2. Create a New Template: Go to the Blynk console, create a new template, and configure the template settings such as name, hardware (ESP8266), and connection type (Wi-Fi). 3. Add Datastream: Define a datastream for the digital pin that will control the LED (e.g., Digital Pin D1). Step 3: Configure the Blynk Mobile App 1. Download the App: Install the Blynk app from the App Store or Google Play. 2. Log In: Open the app and log in with your Blynk account. 3. Create New Project: Create a new project and link it to the template you created in the Blynk console. 4. Add Widget: Add a button widget to control the LED. Link the button to the datastream you set up (e.g., Digital Pin D1). Step 4: Set Up the Hardware 1. Connect the LED: - Place the LED on the breadboard. - Connect the positive leg (anode) of the LED to a digital pin on the NodeMCU (e.g., D1). - Connect the negative leg (cathode) to one end of the resistor. - Connect the other end of the resistor to the GND pin on the NodeMCU. Step 5: Program the NodeMCU 1. Install Blynk Library: Open the Arduino IDE, go to Sketch > Include Library > Manage Libraries, and search for "Blynk." Install the Blynk library. 2. Install ESP8266 Board: In the Arduino IDE, go to File > Preferences, and add the following URL to the Additional Boards Manager URLs: `http://arduino.esp8266.com/stable/package_esp8266com_index.json`. Then go to Tools > Board > Boards Manager, search for "ESP8266," and install it. 3. Code: Use the following code to set up the Blynk connection and control the LED. 4. Upload the Code: Connect your NodeMCU to your computer using the USB cable, select the appropriate board and port in the Arduino IDE, and upload the code. Step 6: Test Your Setup 1. Open the Blynk App: Ensure your NodeMCU is powered and connected to your Wi-Fi. 2. Control the LED: Use the button widget in the Blynk app to turn the LED on and off. Project Gallery All Documents : Download the code below to get started with Blynk2.0 Click Here to Download Download Video Tutorial : Conclusion : Congratulations! You have successfully set up your NodeMCU to control an LED using Blynk 2.0. Experiment with additional widgets and sensors to expand your project. Also check our website for more projects and explore Skill-Hub by EbeddedBrew to enhance your Skills in Embedded Systems and IoT. comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

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.

Download and Install NodeMCU ESP8266 module for IoT Applications. Getting Started with NodeMCU ESP8266 Module Download and Install NodeMCU ESP8266 module for IoT Applications. Description: NodeMCU is a popular open-source IoT platform that uses the ESP8266 Wi-Fi module. Here’s a simple guide to help you get started with NodeMCU using the Arduino IDE. Step 1: Install Arduino IDE 1. Download Arduino IDE: - Go to the [Arduino IDE download page]( https://www.arduino.cc/en/software ). - Download the version compatible with your operating system (Windows, macOS, Linux). 2. Install Arduino IDE: - Follow the installation instructions specific to your operating system. - Once installed, open the Arduino IDE. Step 2: Set Up Arduino IDE for NodeMCU 1. Add ESP8266 Board Manager URL: - Open Arduino IDE. - Go to `File` > `Preferences`. - In the “Additional Board Manager URLs” field, enter the following URL: `http://arduino.esp8266.com/stable/package_esp8266com_index.json`. - Click `OK`. 2. Install ESP8266 Board Package: - Go to `Tools` > `Board` > `Boards Manager`. - Search for “esp8266” in the Boards Manager window. - Click on “Install” for the “esp8266” by ESP8266 Community. 3. Select NodeMCU Board: - Go to `Tools` > `Board`. - Scroll down and select “NodeMCU 1.0 (ESP-12E Module)”. Step 3: Connect NodeMCU to Your Computer 1. Connect NodeMCU: - Use a USB cable to connect your NodeMCU to your computer. 2. Install USB Driver (if necessary): - For Windows, you may need to install the CH340 USB driver. Download it from [here]( https://sparks.gogo.co.nz/ch340.html ). - For macOS, the driver usually installs automatically, but if not, it can be downloaded from the same link. Step 4: Upload Your First Sketch 1. Open Blink Example: - Go to `File` > `Examples` > `ESP8266` > `Blink`. 2. Select the Right Port: - Go to `Tools` > `Port` and select the COM port that your NodeMCU is connected to. 3. Upload the Sketch: - Click on the upload button (right arrow) in the Arduino IDE. - Wait for the code to compile and upload. You should see the onboard LED blinking if the upload is successful. Step 5: Explore More Projects Now that you have successfully uploaded your first sketch, you can explore more advanced projects. Here are some ideas to get you started: - Wi-Fi Controlled LED: Control an LED using a web interface. - Temperature and Humidity Monitoring: Use DHT11/DHT22 sensors to monitor environmental conditions. - Home Automation: Create a simple home automation system using MQTT. Project Gallery All Documents : Use the Below code for Practice #define LED D0 // Led in NodeMCU at pin GPIO16 (D0). void setup() { pinMode(LED, OUTPUT); // LED pin as output. } void loop() { digitalWrite(LED, HIGH);// turn the LED off.(Note that LOW is the voltage level but actually //the LED is on; this is because it is acive low on the ESP8266. delay(1000); // wait for 1 second. digitalWrite(LED, LOW); // turn the LED on. delay(1000); // wait for 1 second. } Click Here to Download Download Video Tutorial : Conclusion : For more projects and tutorials, visit our website. Don’t forget to check out Skill-Hub by EmbeddedBrew for a comprehensive range of courses on embedded systems. comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

How to Create a PIR Sensor-Based Motion Alarm Using Arduino How to Create a PIR Sensor-Based Motion Alarm Using Arduino Here's a step-by-step guide to creating a PIR sensor-based motion alarm using Arduino. Description: In this project, we will build a motion alarm using a PIR (Passive Infrared) sensor and an Arduino. This simple alarm system can detect motion and trigger an alarm, making it ideal for basic security applications. Follow these steps to create your own motion alarm. Materials Needed: - Arduino Uno - PIR Sensor (HC-SR501) - Piezo Buzzer - Breadboard - Jumper Wires - Resistor (220 ohms) - LED (optional for visual indication) Step 1: Gather Your Components Ensure you have all the necessary components listed above. The PIR sensor will detect motion, and the buzzer will serve as the alarm. Step 2: Connect the PIR Sensor to Arduino 1. Power and Ground: - Connect the VCC pin of the PIR sensor to the 5V pin on the Arduino. - Connect the GND pin of the PIR sensor to the GND pin on the Arduino. 2. Signal Pin: - Connect the OUT pin of the PIR sensor to digital pin 2 on the Arduino. Step 3: Connect the Buzzer 1. Positive Pin: - Connect the positive pin of the buzzer to digital pin 8 on the Arduino. 2. Negative Pin: - Connect the negative pin of the buzzer to the GND pin on the Arduino. Step 4: Optional LED Indicator 1. Anode (Longer Leg): - Connect the anode of the LED to digital pin 13 on the Arduino through a 220-ohm resistor. 2. Cathode (Shorter Leg): - Connect the cathode of the LED to the GND pin on the Arduino. Step 5: Upload the Code 1. Connect your Arduino to your computer using a USB cable. 2. Open the Arduino IDE and paste the code above into a new sketch. 3. Select the correct board and port from the Tools menu. 4. Upload the code to your Arduino by clicking the upload button. Step 6: Test Your Motion Alarm 1. Once the code is uploaded, position the PIR sensor to monitor the area where you want to detect motion. 2. When motion is detected, the buzzer should sound, and the LED should light up (if connected). 3. If no motion is detected, the buzzer and LED should remain off. Project Gallery All Documents : Download the Code to test your project. Click Here to Download Download Video Tutorial : Conclusion : You've successfully built a motion alarm using a PIR sensor and Arduino! This project is a great introduction to working with sensors and can be expanded for more advanced security applications. Explore more projects on our website and visit Skill-Hub by EmbeddedBrew to further develop your skills in embedded systems. comments debug Comments Write a comment Write a comment Deine Meinung teilen Jetzt den ersten Kommentar verfassen.

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.

In this topic we are going to unbox an Raspberry-Pi Pico and get to know more about it. Getting Started with Raspberry-Pi Pico In this topic we are going to unbox an Raspberry-Pi Pico and get to know more about it. Description: The Raspberry Pi Pico is a versatile microcontroller board that’s perfect for a variety of projects. Follow these steps to get started with your Pico on a Windows PC. Step 1: Gather Your Materials - Raspberry Pi Pico board - Micro-USB cable (for power and data transfer) - Windows PC - Breadboard and jumper wires (optional, for experiments) - LEDs, resistors, sensors (optional, for projects) Step 2: Install the Raspberry Pi Pico Software 1. Download and Install Thonny IDE: - Visit the [Thonny website]( https://thonny.org/ ) and download the installer for Windows. - Run the installer and follow the prompts to complete the installation. 2. Download MicroPython UF2 File: - Visit the [Raspberry Pi Pico MicroPython page]( https://www.raspberrypi.com/documentation/microcontrollers/micropython.html ). - Download the MicroPython UF2 file from the official website. Step 3: Prepare the Raspberry Pi Pico 1. Connect the Pico to Your PC: - Hold down the BOOTSEL button on the Pico. - While holding the button, connect the Pico to your PC using the micro-USB cable. - Release the BOOTSEL button once the Pico is connected. Your Pico should appear as a removable drive named RPI-RP2 on your computer. 2. Copy the MicroPython UF2 File: - Open the RPI-RP2 drive on your PC. - Drag and drop the MicroPython UF2 file you downloaded earlier onto the RPI-RP2 drive. - The Pico will automatically reboot, and the drive will disappear from your file explorer. Step 4: Configure Thonny IDE 1. Open Thonny IDE: - Launch the Thonny IDE from your Start menu. 2. Select the Interpreter: - Go to Tools > Options and select the Interpreter tab. - Choose MicroPython (Raspberry Pi Pico) from the drop-down menu. - Ensure the correct COM port is selected for your Pico (you can find this in the Device Manager under Ports). Step 5: Write and Run Your First Program 1. Write a Simple Script: - In the Thonny editor, type the following code to blink an onboard LED: from machine import Pin from time import sleep led = Pin(25, Pin.OUT) while True: led.toggle() sleep(1) 2. Save and Run the Script: - Save the script by going to File > Save As, then choose Raspberry Pi Pico. - Name your file (e.g., ` b link .py `) and click OK. - Click the Run button (green arrow) to execute your script. You should see the onboard LED start blinking. Project Gallery All Documents : Write the given code in your IDE and Save as Temp.py file. from machine import ADC import utime temp_sensor = ADC(4) # Default connection of temperature sensor while True: # get raw sensor data raw_sensor_data = temp_sensor.read_u16() # convert raw value to equivalent voltage sensor_voltage = (raw_sensor_data / 65535)*3.3 # convert voltage to temperature (celcius) temperature = 27 - (sensor_voltage - 0.706)/0.001721 print("Temperature : ",temperature, " degree celcius") utime.sleep(1) Follow the Steps given above to Complete the project. Click Here to Download Download Video Tutorial : Conclusion : Congratulations on completing all the steps! You now have a solid understanding of how the Raspberry Pi Pico works. Feel free to experiment with various projects to further enhance your skills. For more project ideas and detailed guides, visit our website. Additionally, explore Skill-Hub by EmbeddedBrew to acquire a wide range of skills in embedded systems. Happy learning! comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

Displaying a custom image on a 0.96-inch OLED display using an Arduino Displaying a custom image on a 0.96-inch OLED display using an Arduino In this tutorial, we'll walk you through the process of displaying a custom image on a 0.96-inch OLED display using an Arduino Nano. This project is perfect for adding a personal touch to your embedded systems projects. Description: In this tutorial, we’ll show you how to display a custom image on a 0.96-inch OLED display using an Arduino Nano. OLED displays are known for their bright and clear output, making them perfect for small projects. We will use the SSD1306 OLED driver and the Adafruit GFX library for this project. Materials Needed 1. Arduino Nano 2. 0.96-inch OLED Display (128x64 pixels) 3. Breadboard and Jumper Wires 4. Computer with Arduino IDE Installed 5. Micro USB Cable Step 1: Setting Up the Hardware 1. Connect the OLED Display to the Arduino Nano: - VCC to 5V (or 3.3V depending on your OLED module). - GND to GND. - SCL to A5 (analog pin 5). - SDA to A4 (analog pin 4). Step 2: Install the Required Libraries 1. Install the Adafruit SSD1306 Library: - Open the Arduino IDE. - Go to Sketch > Include Library > Manage Libraries. - Search for Adafruit SSD1306 and install it. 2. Install the Adafruit GFX Library: - Repeat the process above, but search for Adafruit GFX and install it. Step 3: Prepare the Custom Image 1. Create or Find an Image: - Use an image editor to create or select an image that is 128x64 pixels in size. - Convert the image to monochrome (black and white). 2. Convert the Image to Bitmap Format: - Use an online tool like [Image2CPP]( http://javl.github.io/image2cpp/ ) to convert the image to a byte array. - Select Monochrome for image type and set the dimensions to 128x64. - Copy the generated byte array. Step 4: Write the Arduino Code 1. Initialize the OLED Display: - Open the Arduino IDE and create a new sketch. - Include the necessary libraries at the top of your code: Step 5: Upload the Code and Test 1. Connect the Arduino Nano to Your Computer using the micro USB cable. 2. Select the Arduino Nano Board in the Arduino IDE: - Go to Tools > Board > Arduino Nano. - Select the correct Processor (ATmega328P or ATmega328P (Old Bootloader)). - Choose the correct Port. 3. Upload the Code: - Click the Upload button in the Arduino IDE. Step 6: Troubleshooting 1. Check Connections: - Ensure all wires are connected properly. 2. Check Library Installations: - Verify that the Adafruit SSD1306 and Adafruit GFX libraries are installed correctly. 3. Verify the OLED Address: - Some OLED displays use a different I2C address. Ensure the address in `display.begin(SSD1306_SWITCHCAPVCC, 0x3C)` matches your display's address. Common addresses are `0x3C` and `0x3D`. Project Gallery All Documents : Download the code here. Click Here to Download Download Video Tutorial : Conclusion : With these steps, you should be able to display a custom image on a 0.96-inch OLED display using an Arduino Nano. This project is a great way to learn about interfacing displays with microcontrollers and can serve as a foundation for more complex projects. 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 control a servo motor using a slider on a web server with NodeMCU How to Control a Servo Using a Slider on a Web Server with NodeMCU Here’s a step-by-step guide to control a servo motor using a slider on a web server with NodeMCU Description: In this tutorial, we'll show you how to control a servo motor using a slider on a web server hosted by a NodeMCU. This project combines IoT and web technologies to allow you to control the servo's position from any device with a web browser. Let's get started! Materials Needed - NodeMCU (ESP8266) - Servo Motor (e.g., SG90) - Breadboard and jumper wires - Power supply (e.g., USB cable for NodeMCU) - Micro USB cable - Computer with Arduino IDE installed Step 1: Set Up the Arduino IDE 1. Install the ESP8266 Board: - Open Arduino IDE. - Go to `File` > `Preferences`. - In the "Additional Board Manager URLs" field, add: ` http://arduino.esp8266.com/stable/package_esp8266com_index.json` . - Go to `Tools` > `Board` > `Boards Manager`. - Search for `ESP8266` and click "Install". 2. Install Required Libraries: - Go to `Sketch` > `Include Library` > `Manage Libraries`. - Search for `ESP8266WiFi` and install it. - Search for `Servo` and install it. Step 2: Connect the Servo Motor to NodeMCU 1. Connections: - Connect the servo motor's power pin (usually red) to the 3.3V pin on the NodeMCU. - Connect the ground pin (usually black or brown) to the GND pin on the NodeMCU. - Connect the signal pin (usually yellow or white) to the D1 (GPIO 5) pin on the NodeMCU. Step 3: Write the Code 1. Create the Web Server Code: 2. Upload the Code: - Select your board and port from `Tools` > `Board` > `NodeMCU 1.0 (ESP-12E Module)` and `Tools` > `Port`. - Click the upload button to flash the code to the NodeMCU. Step 4: Test the Project 1. Connect to the Web Server: - Open the Serial Monitor in Arduino IDE (set baud rate to 115200) to see the IP address assigned to your NodeMCU by your WiFi network. - Open a web browser and enter the IP address in the address bar. 2. Control the Servo: - You should see a slider on the webpage. Move the slider to control the servo's position. - The servo should move according to the slider value, allowing you to control its angle from 0 to 180 degrees. Project Gallery All Documents : Download and Run the below code. Click Here to Download Download Video Tutorial : Conclusion : You have successfully created a web server on the NodeMCU to control a servo motor using a slider. This project demonstrates the power of combining IoT and web technologies for remote control applications. Explore more projects and continue enhancing your skills with EmbeddedBrew! 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.

explore to know more about Privacy Policy of EmbeddedBrew. < Back Privacy Policy Welcome to EmbeddedBrew. We are committed to protecting your privacy and ensuring that your personal information is handled safely and responsibly. This Privacy Policy outlines how we collect, use, disclose, and protect your personal information when you visit our Website and use our services. 1. Information We Collect We collect the following types of information: - Personal Information: When you register for an account, enroll in courses, or contact us, we may collect personal information such as your name, email address, phone number, mailing address, payment information, and other details necessary for providing our services. - Usage Data: We collect information about how you interact with our Website, such as your IP address, browser type, operating system, pages visited, and the dates and times of your visits. - Cookies and Tracking Technologies: We use cookies and similar tracking technologies to enhance your experience on our Website, analyze site usage, and for advertising purposes. 2. How We Use Your Information We use the information we collect for the following purposes: - To provide, maintain, and improve our services, including processing transactions and managing accounts. - To communicate with you, including sending you updates, newsletters, and other information related to your account and our services. - To personalize your experience on our Website and deliver content and product offerings relevant to your interests. - To analyze usage patterns and improve our Website’s performance and usability. - To comply with legal obligations and protect the rights, property, or safety of EmbeddedBrew Innovations, our users, or others. 3. How We Share Your Information We do not sell or rent your personal information to third parties. We may share your information with: - Service Providers: We may share your information with trusted third-party service providers who assist us in operating our Website, conducting our business, or providing services to you, provided they agree to keep your information confidential. - Legal Compliance: We may disclose your information if required to do so by law or in response to valid requests by public authorities (e.g., a court or government agency). - Business Transfers: In the event of a merger, acquisition, or sale of all or a portion of our assets, your personal information may be transferred to the acquiring entity. 4. Security of Your Information We implement appropriate technical and organizational measures to protect your personal information from unauthorized access, use, alteration, or destruction. However, no method of transmission over the internet or electronic storage is 100% secure, and we cannot guarantee absolute security. 5. Your Rights and Choices You have the following rights regarding your personal information: - Access and Correction: You can access and update your personal information through your account settings or by contacting us directly. - Data Deletion: You can request the deletion of your personal information, subject to certain legal exceptions. - Opt-Out: You can opt-out of receiving marketing communications from us by following the unsubscribe instructions included in our emails or by contacting us. 6. Children's Privacy Our Website is not intended for children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe that we have collected information from a child under 13, please contact us, and we will take steps to delete such information. 7. Changes to This Privacy Policy We may update this Privacy Policy from time to time to reflect changes in our practices or for other operational, legal, or regulatory reasons. We will notify you of any material changes by posting the new Privacy Policy on our Website and updating the effective date. 8. Contact Us If you have any questions or concerns about this Privacy Policy or our privacy practices, please contact us at: embeddedbrew@gmail.com --- EmbeddedBrew Innovations (Formerly Rudra DIY Crafts) Effective Date:[30/05/2024]

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