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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.

Getting Started with RFID and Arduino: Reading Values and Controlling an LED Getting Started with RFID and Arduino: Reading Values and Controlling an LED Here’s a step-by-step guide for getting started with RFID and Arduino to read values on the Serial Monitor and control an LED Description: Introduction RFID (Radio Frequency Identification) technology allows you to read data from RFID tags using an RFID reader. In this guide, we will show you how to set up an RFID reader with an Arduino to display tag information on the Serial Monitor and control an LED based on the tag read. Materials Needed - Arduino Uno - RFID Reader (RC522) - RFID Tags - LED - Resistor (220 ohms) - Breadboard and jumper wires Step 1: Wiring the RFID Reader to the Arduino 1. Connect the RFID Reader (RC522) to the Arduino as follows: - SDA to Arduino pin 10 - SCK to Arduino pin 13 - MOSI to Arduino pin 11 - MISO to Arduino pin 12 - IRQ to Arduino pin 9 (not used in this example) - GND to GND - RST to Arduino pin 8 - 3.3V to 3.3V 2. Connect the LED to the Arduino: - Connect the longer leg (anode) of the LED to a 220-ohm resistor, then to Arduino pin 7. - Connect the shorter leg (cathode) to GND. Step 2: Install the Required Libraries Install the MFRC522 library: - Open the Arduino IDE. - Go to Sketch > Include Library > Manage Libraries. - Search for "MFRC522" and install the library by GithubCommunity. Step 3: Upload the Code to the Arduino 1. Open the Arduino IDE and create a new sketch. 2. Copy and paste the following code: 3. Replace `"XX XX XX XX"` in the code with the UID of your RFID tag. To find your tag's UID, upload the code first, open the Serial Monitor, and place your RFID tag near the reader. The UID will be displayed on the Serial Monitor. 4. Upload the modified code to your Arduino. Step 4: Test the Setup 1. Open the Serial Monitor: - Make sure the baud rate is set to 9600. 2. Place your RFID tag near the reader: - Observe the UID printed on the Serial Monitor. - If the UID matches the specified UID in the code, the LED should turn on for 3 seconds. - If the UID does not match, the Serial Monitor will display "Unauthorized access." Project Gallery All Documents : Download the below code and explore with RFID Sensor. Click Here to Download Download Video Tutorial : Conclusion : You have now successfully set up an RFID reader with an Arduino to read tag values and control an LED. This basic project can be extended to various applications, such as access control systems, inventory management, and more. Explore additional projects and expand your skills with Skill-Hub by EmbeddedBrew. comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

Learn to use NodeMCU in Server mode and Client mode. Using NodeMCU as a Client & Server Application Learn to use NodeMCU in Server mode and Client mode. Description: The NodeMCU is a popular development board that makes it easy to connect to Wi-Fi and create IoT applications. In this guide, we’ll walk through the steps to set up your NodeMCU as both a server and a client using the Arduino IDE. Prerequisites: - NodeMCU board - USB cable - Arduino IDE installed - Wi-Fi network Step 1: Set Up the Arduino IDE 1. Install the NodeMCU Board Package: - Open the 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 install the latest version. 2. Select the NodeMCU Board: - Go to `Tools` -> `Board` and select `NodeMCU 1.0 (ESP-12E Module)`. Step 2: Set Up NodeMCU as a Server 1. Open the Example Sketch: - Go to `File` -> `Examples` -> `ESP8266WebServer` -> `HelloServer`. 2. Modify the Sketch: - Update the `ssid` and `password` variables with your Wi-Fi credentials. const char* ssid = "your_SSID"; const char* password = "your_PASSWORD"; 3. Upload the Sketch: - Connect your NodeMCU to your computer using a USB cable. - Select the correct port under `Tools` -> `Port`. - Click the upload button. 4. Monitor the Serial Output: - Open the Serial Monitor (`Tools` -> `Serial Monitor`) and set the baud rate to `115200`. - Once connected, the Serial Monitor will display the IP address of the NodeMCU. 5. Access the Server: - Open a web browser and enter the IP address displayed in the Serial Monitor. - You should see a message saying "Hello from ESP8266!". Step 3: Set Up NodeMCU as a Client 1. Open the Example Sketch: - Go to `File` -> `Examples` -> `ESP8266WiFi` -> `WiFiClient`. 2. Modify the Sketch: - Update the `ssid` and `password` variables with your Wi-Fi credentials. - Set the server's IP address and port (if you're using the previous server example, use the NodeMCU’s IP and port 80). const char* ssid = "your_SSID"; const char* password = "your_PASSWORD"; const char* host = "server_IP_address"; const uint16_t port = 80; 3. Upload the Sketch: - Connect your NodeMCU to your computer. - Select the correct port and upload the sketch. 4. Monitor the Serial Output: - Open the Serial Monitor and set the baud rate to `115200`. - The NodeMCU will attempt to connect to the server and you should see the response from the server in the Serial Monitor. Step 4: Testing and Further Development - Testing: - With the server running, reset the client NodeMCU and observe the communication between the server and client in the Serial Monitor. - Further Development: - Explore more examples and libraries to expand your IoT projects. - Modify the server to handle different types of requests. - Use the client to send sensor data to the server. Project Gallery All Documents : Use the codes from the eamples as mentioned above. Click Here to Download Download Video Tutorial : Conclusion : By following these steps, you've successfully set up your NodeMCU as both a server and a client. This setup forms the foundation for creating more complex IoT applications. For additional projects and resources, check out our website and Skill-Hub by EmbeddedBrew. Happy coding! comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

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Design a Retro game of Snake from Nokia using OLED and Joystick. Design a Retro game of Snake from Nokia using OLED and Joystick. With these steps, you've successfully created a basic Nokia Snake game using a 0.96" OLED, a joystick, and an Arduino Nano. You can enhance the game by adding more features, improving graphics, and optimizing controls. Description: Creating a Nokia Snake game using a 0.96" OLED, a joystick, and an Arduino Nano is an exciting project. Below are the detailed steps to guide you through the process: Materials Needed 1. Arduino Nano 2. 0.96" OLED display (SSD1306) 3. Joystick module 4. Breadboard and jumper wires 5. Power supply or USB cable 6. Resistors (if needed for pull-down or pull-up) Step 1: Setup and Installation 1. Install Arduino IDE: Download and install the Arduino IDE from the official [Arduino website](https://www.arduino.cc/en/software). 2. Install Required Libraries: Open the Arduino IDE and install the following libraries through the Library Manager (Sketch -> Include Library -> Manage Libraries): - Adafruit SSD1306 - Adafruit GFX Step 2: Wiring the Components 1. OLED Display: - VCC to 5V (or 3.3V, depending on your display) - GND to GND - SCL to A5 (SCL) - SDA to A4 (SDA) 2. Joystick Module: - VCC to 5V - GND to GND - VRx to A0 (horizontal movement) - VRy to A1 (vertical movement) - SW to D2 (button press) Step 3: Testing and Debugging 1. Upload the Code: Connect your Arduino Nano to your computer using a USB cable. Select the appropriate board and port in the Arduino IDE and upload the code. 2. Check the Display: Ensure the OLED display initializes correctly and shows the snake's movement. 3. Joystick Control: Move the joystick and observe the snake's movement on the OLED display. Adjust the delay and mapping values for smoother control. Step 4: Enhancements 1. Food Item: Add random food generation on the screen and increase the snake's length when it eats the food. 2. Game Over Condition: Implement collision detection with the screen boundaries and the snake's body. 3. Score Display: Add a score counter and display it on the screen. Project Gallery All Documents : Download the below code and enjoy your game. Click Here to Download Download Video Tutorial : Conclusion : With these steps, you've successfully created a basic Nokia Snake game using a 0.96" OLED, a joystick, and an Arduino Nano. You can enhance the game by adding more features, improving graphics, and optimizing controls. Explore our website for more projects and visit Skill-Hub by EmbeddedBrew. Happy coding and enjoy your DIY project! comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

Create Automation System using NodeMCU and Blynk2.0 to control Lights and Fans of a room, also monitor environmental parameters on your hand. How to make a Home Automation System using Blynk2.0 and NodeMCU Create Automation System using NodeMCU and Blynk2.0 to control Lights and Fans of a room, also monitor environmental parameters on your hand. Description: Sure, here’s a step-by-step guide to create a home automation system that controls two devices and displays temperature data from a DHT22 sensor on an LCD using NodeMCU and Blynk: Step 1: Gather Materials - NodeMCU (ESP8266) - DHT22 temperature and humidity sensor - 16x2 LCD display with I2C module - Two relays (for controlling devices) - Breadboard and jumper wires - Power supply (5V for relays, typically USB for NodeMCU) - Blynk app installed on your smartphone Step 2: Set Up Blynk 1. Create a Blynk Account: Download the Blynk app from the App Store or Google Play and create an account. 2. Create a New Project: In the Blynk app, create a new project. Select "NodeMCU" as your device and note down the authentication token sent to your email. 3. Add Widgets: - Add a button widget for each device you want to control. - Add a labeled value widget to display temperature data. - Optionally, add a gauge or graph widget to visualize temperature data. Step 3: Set Up Hardware 1. Connect the DHT22 Sensor: - VCC to 3.3V on NodeMCU - GND to GND on NodeMCU - Data to digital pin D4 on NodeMCU 2. Connect the LCD Display: - Connect the I2C module to the LCD. - SDA to D2 on NodeMCU - SCL to D1 on NodeMCU - VCC to 5V on NodeMCU - GND to GND on NodeMCU 3. Connect the Relays: - Relay 1 IN pin to D5 on NodeMCU - Relay 2 IN pin to D6 on NodeMCU - VCC to 5V - GND to GND Step 4: Install Libraries In your Arduino IDE, install the following libraries: - Blynk Library: Go to Sketch > Include Library > Manage Libraries, search for "Blynk", and install. - DHT Sensor Library: Search for "DHT sensor library" and install. - LiquidCrystal I2C Library: Search for "LiquidCrystal I2C" and install. Step 5: Write the Code Step 6: Upload Code to NodeMCU 1. Connect your NodeMCU to your computer via USB. 2. Open the Arduino IDE and select the correct board and port. 3. Upload the code to your NodeMCU. Step 7: Configure Blynk App 1. Button Widgets: Set one button to V1 and the other to V2 for controlling the relays. 2. Labeled Value Widget: Set to V5 to display the temperature data. Step 8: Power Up and Test 1. Ensure all connections are secure. 2. Power up your NodeMCU and relays. 3. Open the Blynk app and test the buttons to control your devices. 4. Check the LCD display and Blynk app to see the temperature readings from the DHT22 sensor. Project Gallery All Documents : Download the below code to make your own Home Automation System. Click Here to Download Download Video Tutorial : Conclusion : You’ve now built a basic home automation system using NodeMCU and Blynk! This setup allows you to control two devices remotely and monitor temperature data in real-time. Explore additional projects and skills on our website and continue enhancing your IoT expertise with Skill-Hub by EmbeddedBrew. Happy building! comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

How to make an Arduino based Calculator using Keypad and LCD How to make an Arduino based Calculator using Keypad and LCD Here's a step-by-step guide to creating a calculator using an Arduino, a keypad, and an LCD Description: In this tutorial, we’ll walk you through building a simple calculator using an Arduino, a 4x4 keypad, and an I2C LCD. This project is perfect for beginners looking to explore the basics of interfacing components with an Arduino. Components Needed: - Arduino Uno (or any other compatible board) - 4x4 Keypad - LCD I2C (16x2) - Jumper wires - Breadboard - USB cable for programming Step 1: Set Up Your Components Connect the Keypad: 1. Place the keypad on your breadboard. 2. Connect the keypad's row and column pins to the Arduino. For instance: - Row pins (R1, R2, R3, R4) to Arduino pins 9, 8, 7, 6 - Column pins (C1, C2, C3, C4) to Arduino pins 5, 4, 3, 2 Connect the LCD I2C: 1. Attach the I2C LCD to the breadboard. 2. Connect the LCD's SDA and SCL pins to the corresponding Arduino pins: - SDA to A4 - SCL to A5 3. Connect the LCD's VCC to the 5V pin on the Arduino and GND to the GND pin on the Arduino. Step 2: Install Required Libraries Before coding, ensure you have the necessary libraries installed in your Arduino IDE: 1. Keypad Library: - Go to Sketch > Include Library > Manage Libraries. - Search for "Keypad" and install the Keypad library by Mark Stanley and Alexander Brevig. 2. LiquidCrystal I2C Library: - Go to Sketch > Include Library > Manage Libraries. - Search for "LiquidCrystal I2C" and install the library by Frank de Brabander. Step 3: Write the Code Here’s a sample code to get you started: Step 4: Upload and Test 1. Connect your Arduino to your computer using the USB cable. 2. Open the Arduino IDE, paste the code, and upload it to your Arduino. 3. Once uploaded, your LCD should display "Calculator" initially. Use the keypad to enter numbers and operations. For example: - Press `5`, then `A` (for addition), then `3`, and finally `#` to see the result `8` displayed. Project Gallery All Documents : Download the below code to run the Calculator Click Here to Download Download Video Tutorial : Conclusion : Now that your basic calculator is working, you can try expanding its functionality. Add more operations, improve the user interface, or even integrate it with other sensors or components for more complex projects. By following these steps, you’ll have a functional calculator built with an Arduino, a keypad, and an LCD I2C. Happy building! Also check our website for more projects and explore the Skill-Hub 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.

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Know about the terms and conditions for using the site. < Back Crew Terms and Conditions Sheet This Terms and Conditions Deed is made and entered into on the date mentioned in the Crew Information Sheet, by and between EmbeddedBrew Innovations, a sole proprietorship duly incorporated under the laws of India, with its registered office at Old Town, Bhubaneswar, Odisha (hereinafter referred to as the "Company"), and the individual identified in the Crew Information Sheet, (hereinafter referred to as the "Crew"). NOW, THEREFORE, in consideration of the mutual promises and terms and conditions contained herein, the parties hereto agree as follows: 1. Scope of Work The Crew agrees to provide the services, as mentioned in the Assignment Information Sheet. The Crew shall perform the work as per the agreed timeline, and quality standards specified by the Company. The Company may request additional services, which shall be mutually agreed upon in writing, including any further compensation. 2. Compensation The Crew shall be compensated on a per Project/ per Day/ per Month basis, at a rate, as mentioned in the Assignment Information Sheet. Payment shall be made upon completion of the agreed milestones or deliverables and approval by the Company. The Crew shall submit an invoice detailing the services rendered and the corresponding payment due. Payment shall be made within 15 days of receipt of the invoice. 3. Work Hours, Holidays, and Absence The Crew agrees to adhere to the standard working hours mutually agreed upon with the Company, that is according to the completion of the project. The Crew is entitled to observe public holidays as per the Company’s holiday schedule. In case of absence without prior notice or approval, the Company reserves the right to deduct payment on a pro-rata, per-day basis, calculated as a proportion of the agreed project or Daily work rate. Consistent absences may lead to a review of the agreement. 4. Payment Cancellation Terms In the event of termination with or without prior notice by either party, or if termination occurs due to misconduct, breach of contract, or any other justifiable cause, the Company reserves the right to cancel any pending payments for work not performed. if the project has not yet commenced by the time of termination, no payment will be due. The Crew will only be entitled to the compensation earned up until the date of termination, and any additional compensation will not be provided. 5. Non-Compete & Non-Solicitation The Crew agrees not to engage in or assist any business that competes with the Company during Assignment and for a period of 6 months after termination. The Crew further agrees not to solicit the Company’s clients, customers, or employees for personal gain during this period. 6. Profit Sharing The Crew shall not be entitled to any share in the Company’s profits unless specifically agreed upon in a separate written agreement. The Crew’s compensation is limited to the fees mentioned in this deed, and they shall have no claim to any other financial benefits, assets, or revenues of the Company. 7. Confidentiality The Crew agrees to maintain the confidentiality of all proprietary information, trade secrets, business plans, and any other confidential information disclosed by the Company. This confidentiality obligation shall survive the termination of this agreement and continue indefinitely. 8. Intellectual Property All work products, including but not limited to designs, content, software, and documentation created by the Crew in the course of their work, shall be the exclusive property of the Company. The Crew shall assign all rights, title, and interest in any intellectual property created during the engagement to the Company. 9. 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Dispute Resolution Any disputes arising out of or in connection with this deed shall be resolved through amicable negotiations between the parties. If the dispute cannot be resolved through negotiation, it shall be referred to arbitration in accordance with the Arbitration and Conciliation Act, 1996. 14. Miscellaneous Amendments: Any amendments or modifications to this deed must be made in writing and signed by both parties. Entire Agreement: This deed constitutes the entire agreement between the parties and supersedes any prior agreements or understandings, whether oral or written. Thank you for your attention to these details. We are excited to have you as part of our team and look forward to a successful collaboration! Crew Info Form

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NodeMCU Projects How to make a Home Automation System using Blynk2.0 and NodeMCU Create Automation System using NodeMCU and Blynk2.0 to control Lights and Fans of a room, also monitor environmental parameters on your hand. Read More How to Make an Online Clock with NodeMCU and LCD Display Here is a step-by-step guide to creating an online clock using NodeMCU to display the time and date on an LCD Read More 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 Read More 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 Read More Getting Started with Arduino IoT Cloud and NodeMCU to Control an LED Here’s a step-by-step guide to get started with Arduino IoT Cloud and NodeMCU to control an LED Read More Create a WiFi-controlled car using NodeMCU and a custom app Creating a WiFi-controlled car using NodeMCU and a custom app can be a fun and educational project. Read More 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 Read More Learn controlling LED Lights on a webserver You will learn to create a webserver and control a LED using it. Read More 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 Read More Load More