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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.

Automatic door opening system using motion sensor Create a fun project of opening a door using IR sensor Description: Are you interested in home automation projects? In this tutorial, we'll guide you through the steps to create an automatic door opener using an Arduino, a servo motor, and an IR sensor. This project is perfect for beginners and a great way to get hands-on experience with Arduino. Components Needed: - Arduino Uno - Servo Motor (e.g., SG90) - IR Sensor Module - Breadboard and jumper wires - Power supply (e.g., 9V battery with connector) - Door or small model to test the mechanism 1. Setup and Wiring: - Servo Motor Wiring: - Connect the red wire of the servo motor to the 5V pin on the Arduino. - Connect the black or brown wire to the GND pin on the Arduino. - Connect the yellow or orange wire to digital pin 9 on the Arduino. - IR Sensor Wiring: - Connect the VCC pin of the IR sensor to the 5V pin on the Arduino. - Connect the GND pin to the GND on the Arduino. - Connect the OUT pin of the IR sensor to digital pin 7 on the Arduino. 2. Arduino Code: - Open the Arduino IDE and create a new sketch. Copy and paste the following code. 3. Assembling the Components: - Place the IR sensor module near the door, ensuring it can detect when someone approaches. - Attach the servo motor to the door mechanism. If you're using a model door, you might need to create a simple arm that the servo can push or pull to open the door. 4. Uploading the Code: - Connect your Arduino to your computer using a USB cable. - Select the correct board and port from the Arduino IDE (Tools > Board > Arduino Uno, Tools > Port > COMx). - Click the upload button to transfer the code to the Arduino. 5. Testing: - Once the code is uploaded, power your Arduino using a 9V battery or another power source. - Wave your hand or an object in front of the IR sensor. The servo motor should rotate to open the door and then close it after 3 seconds. Troubleshooting Tips: - Servo Not Moving: Ensure that the servo motor connections are correct and secure. Check the power supply. - IR Sensor Not Detecting: Verify the IR sensor wiring and that the sensor is oriented correctly. Use the serial monitor to check the sensor readings. - Adjustments: If the door doesn't open or close properly, adjust the servo angle values in the code. Project Gallery All Documents : Download the following code to run your project. Click Here to Download Download Video Tutorial : Conclusion : By following these steps, you have successfully created an automatic door opener using Arduino, a servo motor, and an IR sensor. This project introduces you to the basics of using sensors and actuators with Arduino, opening the door to more complex home automation projects. Happy building! comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

Getting Started with DS18B20 Temperature Sensor This guide provides a clear, step-by-step process for getting started with the DS18B20 sensor and Arduino, making it easy for beginners to follow and understand. Description: The DS18B20 is a popular temperature sensor that provides accurate and reliable temperature readings in a variety of projects. In this guide, we’ll walk you through the steps to get started with the DS18B20 sensor and an Arduino board. Materials Needed: - Arduino board (e.g., Arduino Uno) - DS18B20 temperature sensor - 4.7k ohm resistor - Breadboard and jumper wires - Arduino IDE (installed on your computer) Step 1: Understanding the DS18B20 The DS18B20 is a digital temperature sensor that communicates over a 1-Wire bus, requiring only one data line for communication. It can measure temperatures in the range of -55°C to +125°C with an accuracy of ±0.5°C. Step 2: Wiring the DS18B20 First, identify the pins on the DS18B20: - GND: Ground - DQ: Data (1-Wire) - VDD: Power (3.3V to 5V) Now, connect the DS18B20 to the Arduino as follows: 1. Connect the GND pin of the DS18B20 to the GND pin on the Arduino. 2. Connect the VDD pin of the DS18B20 to the 5V pin on the Arduino. 3. Connect the DQ pin of the DS18B20 to digital pin 2 on the Arduino. 4. Place a 4.7k ohm resistor between the DQ pin and the VDD pin to act as a pull-up resistor. Step 3: Installing the Required Libraries To communicate with the DS18B20, you’ll need the OneWire and DallasTemperature libraries. Open the Arduino IDE and install these libraries: 1. Go to Sketch > Include Library > Manage Libraries. 2. Search for "OneWire" and install the library by Paul Stoffregen. 3. Search for "DallasTemperature" and install the library by Miles Burton. Step 4: Writing the Code Create a new sketch in the Arduino IDE and enter the following code: Step 5: Uploading the Code 1. Connect your Arduino to the computer using a USB cable. 2. Select the appropriate board and port from the Tools menu in the Arduino IDE. 3. Click the Upload button to upload the code to the Arduino. Step 6: Monitoring the Output Once the code is uploaded, open the Serial Monitor from the Tools menu. Set the baud rate to 9600. You should see the temperature readings from the DS18B20 sensor displayed in the Serial Monitor. Project Gallery All Documents : Download the below code to get started with DS18B20. Click Here to Download Download Video Tutorial : Conclusion : You’ve successfully set up the DS18B20 temperature sensor with your Arduino! Now you can integrate this sensor into various projects, such as weather stations, HVAC systems, or any application that requires accurate temperature monitoring. For more project ideas and tutorials, visit our website and explore Skill-Hub by EmbeddedBrew to enhance your embedded systems skills. Happy coding! comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

How to create a Musical tune on Arduino Learn to create and play music on Arduino. Description: Creating music using an Arduino and a buzzer is a fun and educational project that introduces you to basic electronics and programming concepts. Here’s a Step-by-Step Guide to Create Music with Arduino and a Buzzer Materials Needed: 1. Arduino board (e.g., Arduino Uno) 2. Piezo buzzer 3. Breadboard 4. Jumper wires 5. USB cable for Arduino 6. Computer with Arduino IDE installed Step 1: Set Up Your Workspace - Ensure you have all the necessary materials. - Install the Arduino IDE on your computer if you haven’t already done so. Step 2: Connect the Buzzer to the Arduino 1. Place the piezo buzzer on the breadboard. 2. Connect one leg of the buzzer to a digital pin on the Arduino (e.g., pin 8). 3. Connect the other leg of the buzzer to the ground (GND) pin on the Arduino. Step 3: Write the Code - Open the Arduino IDE on your computer. - Create a new sketch and write the following code to play a simple melody: Step 4: Upload the Code to the Arduino 1. Connect your Arduino board to the computer using the USB cable. 2. In the Arduino IDE, select the correct board and port from the 'Tools' menu. 3. Click the 'Upload' button to upload the code to your Arduino. 5: Test Your Setup - Once the code is uploaded, your buzzer should start playing the melody. If you don’t hear any sound, double-check your connections and ensure that the buzzer is properly connected to the specified pin. Project Gallery All Documents : Download the below code and run on ArduinoIDE. Click Here to Download Download Video Tutorial : Conclusion : Creating music with an Arduino and a buzzer is a great way to get started with electronics and programming. It’s a simple project that can be expanded in many creative ways. For more project ideas and tutorials, visit our website and check out Skill-Hub by EmbeddedBrew for more learning opportunities in embedded systems. Happy creating! comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

How to Build a Water Level Monitoring System Using BC547 here’s a detailed guide on how to create a water level monitoring system using a BC547 transistor. Description: Monitoring water levels is essential for various applications, from home water tanks to industrial reservoirs. In this guide, we will walk you through the steps to create a simple and effective water level monitoring system using a BC547 transistor. Materials Needed: - BC547 NPN transistor - Resistors (1kΩ, 10kΩ) - LEDs (Green, Yellow, Red) - 9V battery and battery clip - Water container - Connecting wires - Breadboard - Jumper wires Step 1: Understanding the Circuit Before we start building, it’s important to understand how the circuit works. The BC547 transistor acts as a switch that will control the LEDs indicating different water levels. The base of the transistor will receive input from the water sensors (wires submerged in water at different levels), the emitter will be connected to the ground, and the collector will drive the LEDs. Step 2: Setting Up the Power Supply Connect the 9V battery to the breadboard using the battery clip. Connect the positive terminal of the battery to the positive rail and the negative terminal to the negative rail of the breadboard. Step 3: Placing the Transistor Place the BC547 transistor on the breadboard. The flat side of the transistor should be facing you. The pins from left to right are: Collector (C), Base (B), and Emitter (E). Step 4: Connecting the Resistors - Connect a 10kΩ resistor from the base (B) of the BC547 to the positive rail of the breadboard. - Connect a 1kΩ resistor from the collector (C) of the BC547 to the positive rail of the breadboard. Step 5: Setting Up the LEDs - Connect the cathode (short leg) of the green LED to the emitter (E) of the BC547. - Connect the anode (long leg) of the green LED to the collector (C) of the BC547. - Repeat the same steps for the yellow and red LEDs, ensuring each has its own BC547 transistor set up in parallel. Step 6: Creating the Water Sensors - Use three pieces of wire to act as water level sensors. - Place the first wire at the bottom of the water container (low level). - Place the second wire in the middle (medium level). - Place the third wire near the top (high level). Step 7: Connecting the Sensors to the Transistors - Connect the sensor wire at the bottom to the base (B) of the first BC547 transistor via a jumper wire. - Connect the middle sensor to the base (B) of the second BC547 transistor. - Connect the top sensor to the base (B) of the third BC547 transistor. Step 8: Grounding the Circuit - Connect the emitter (E) of all three BC547 transistors to the negative rail of the breadboard. - Connect the negative rail to the negative terminal of the battery. Step 9: Testing the System - Fill the container with water to different levels and observe the LEDs. - When the water reaches the bottom sensor, the green LED should light up. - When the water reaches the middle sensor, the yellow LED should light up. - When the water reaches the top sensor, the red LED should light up. Project Gallery All Documents : There are no codes to download Click Here to Download Download Video Tutorial : Conclusion : By following these steps, you have successfully built a water level monitoring system using a BC547 transistor. This simple project helps you understand the basics of transistor operation and water level detection. For more exciting projects and tutorials, visit our website and check out Skill-Hub by EmbeddedBrew to expand your knowledge in embedded systems. comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

Getting Started with a 0.96" OLED Display and Arduino Nano Here are the steps to get started with a 0.96" OLED display and an Arduino Nano. This can serve as a detailed guide. This guide should help readers get up and running with their OLED display and Arduino Nano, providing a clear, step-by-step approach to their first project. Description: The 0.96" OLED display is a compact, high-contrast screen perfect for displaying text, graphics, and other data. Pairing it with the versatile Arduino Nano allows for a range of exciting projects. Follow these steps to get started: Step 1: Gather Your Materials - Arduino Nano - 0.96" OLED display (typically using the I2C interface) - Breadboard - Jumper wires - USB cable for programming the Arduino Nano - Computer with Arduino IDE installed Step 2: Connect the OLED Display to the Arduino Nano 1. Power Connections: - Connect VCC (or 3.3V) pin of the OLED to the 3.3V pin on the Arduino Nano. - Connect GND pin of the OLED to the GND pin on the Arduino Nano. 2. I2C Connections: - Connect the SCL (clock line) of the OLED to the A5 pin on the Arduino Nano. - Connect the SDA (data line) of the OLED to the A4 pin on the Arduino Nano. Step 3: Install Required Libraries 1. Open the Arduino IDE on your computer. 2. Go to Sketch > Include Library > Manage Libraries... 3. In the Library Manager, search for and install the following libraries: - Adafruit SSD1306: This library is used to control the SSD1306 OLED display. - Adafruit GFX Library: This library provides graphics functions for the display. S tep 4: Load and Run an Example Sketch 1. Open the Arduino IDE and go to File > Examples > Adafruit SSD1306 > ssd1306_128x64_i2c. 2. If your OLED has a resolution of 128x32, use the 'ssd1306_128x32_i2c' example instead. Step 5: Modify the Example Code 1. In the example sketch, locate the section of code that sets the display address. It typically looks like this: #define SCREEN_WIDTH 128 // OLED display width, in pixels #define SCREEN_HEIGHT 64 // OLED display height, in pixels #define OLED_RESET -1 // Reset pin # (or -1 if sharing Arduino reset pin) Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET); 2. Ensure that the I2C address is correct. The default address for most 0.96" OLEDs is 0x3C. If your display uses a different address, update the code accordingly: if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { Serial.println(F("SSD1306 allocation failed")); for(;;); } Step 6: Upload the Code to the Arduino Nano 1. Connect your Arduino Nano to your computer using the USB cable. 2. Select the appropriate board and port in the Arduino IDE: - Tools > Board > Arduino Nano - Tools > Processor > ATmega328P (Old Bootloader) (if needed) - Tools > Port > Select the COM port your Nano is connected to. 3. Click the Upload button to compile and upload the sketch to your Arduino Nano. Step 7: Verify the Display Output 1. Once the code is uploaded, the OLED should initialize and display graphics or text as defined in the example sketch. 2. You can modify the sketch to display custom messages, graphics, or sensor data. Step 8: Explore Further - Try displaying different types of data like sensor readings, custom graphics, or animations. - Experiment with different functions provided by the Adafruit GFX library to enhance your projects. Project Gallery All Documents : Download the below Code to get Started. Click Here to Download Download Video Tutorial : Conclusion : By following these steps, you'll be able to successfully integrate a 0.96" OLED display with an Arduino Nano and start displaying information for your projects. Also visit our website for more projects and explore Skill-Hub by EmbeddedBrew to enhance your Skills. Happy coding! comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

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 Description: Creating an online clock using NodeMCU and an LCD display is an exciting project that combines the power of Wi-Fi connectivity with the simplicity of microcontrollers. Follow these steps to build your own online clock. Materials Needed: - NodeMCU (ESP8266) - LCD Display (16x2 or 20x4) with I2C module - Breadboard and jumper wires - USB cable for programming NodeMCU - Internet connection Step 1: Set Up the Hardware 1. Connect the LCD Display to NodeMCU: - Connect the VCC pin of the LCD to the 3.3V pin on the NodeMCU. - Connect the GND pin of the LCD to a GND pin on the NodeMCU. - Connect the SDA pin of the LCD to the D2 pin on the NodeMCU. - Connect the SCL pin of the LCD to the D1 pin on the NodeMCU. 2. Power the NodeMCU: - Connect the NodeMCU to your computer using the USB cable to power it up and upload the code. Step 2: Install Required Libraries 1. Install the Arduino IDE: - Download and install the Arduino IDE from the [Arduino website](https://www.arduino.cc/en/software). 2. Add ESP8266 Board to Arduino IDE: - Open 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` - Go to `Tools > Board > Boards Manager`, search for `ESP8266` and install the `esp8266` platform. 3. Install Libraries: - Go to `Sketch > Include Library > Manage Libraries`. - Search for and install the following libraries: - `LiquidCrystal_I2C` (for controlling the LCD via I2C) - `NTPClient` (for getting time from an NTP server) - `ESP8266WiFi` (for connecting NodeMCU to Wi-Fi) Step 3: Write the Code 1. Include Libraries and Define Variables: 2. Set Up Wi-Fi and Time Client: 3. Display Time and Date: Step 4: Upload the Code 1. Upload Code to NodeMCU: - Select the correct board and port in the Arduino IDE (`Tools > Board > NodeMCU 1.0 (ESP-12E Module)` and `Tools > Port`). - Click the upload button to upload the code to the NodeMCU. 2. Monitor the Serial Output: - Open the Serial Monitor (`Tools > Serial Monitor`) to see the connection status and debug messages. Step 5: Test and Debug 1. Check LCD Display: - Ensure the LCD displays the current time and date. - If the display is not working, check the connections and ensure the I2C address of the LCD (0x27 in this case) matches your hardware. 2. Verify Time Accuracy: - The time displayed should update every second. - If the time is incorrect, check your internet connection and the NTP server configuration. Project Gallery All Documents : Download the below code to make your LCD Clock. Click Here to Download Download Video Tutorial : Conclusion : Congratulations! You have successfully created an online clock using NodeMCU and an LCD display. For more exciting projects, visit our website and explore Skill-Hub by EmbeddedBrew to learn new skills in embedded systems. comments debug Comments Write a comment Write a comment Fikirlerinizi Paylaşın İlk yorumu siz yazın.

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.

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.

Getting started with Keypad module and Arduino Nano Here are the steps to get started with a Keypad module and an Arduino Nano to display values on the Serial Monitor Description: In this tutorial, we will learn how to interface a keypad module with an Arduino Nano and display the pressed keys on the Serial Monitor. Keypads are a simple and effective way to add input functionality to your Arduino projects. Components Needed - Arduino Nano - Keypad module (4x4 or 4x3) - Jumper wires - Breadboard (optional) - USB cable to connect Arduino Nano to the computer Step 1: Connect the Keypad to the Arduino Nano 1. Identify the Keypad Pins: Most keypads have a set of row and column pins. A 4x4 keypad typically has 8 pins (4 for rows and 4 for columns), while a 4x3 keypad has 7 pins (4 for rows and 3 for columns). 2. Connect the Keypad Pins to Arduino: Use jumper wires to connect the keypad pins to the Arduino Nano. Here's an example connection for a 4x4 keypad: - Keypad Pin 1 (Row 1) to Arduino Digital Pin 2 - Keypad Pin 2 (Row 2) to Arduino Digital Pin 3 - Keypad Pin 3 (Row 3) to Arduino Digital Pin 4 - Keypad Pin 4 (Row 4) to Arduino Digital Pin 5 - Keypad Pin 5 (Column 1) to Arduino Digital Pin 6 - Keypad Pin 6 (Column 2) to Arduino Digital Pin 7 - Keypad Pin 7 (Column 3) to Arduino Digital Pin 8 - Keypad Pin 8 (Column 4) to Arduino Digital Pin 9 Step 2: Install the Keypad Library 1. Open the Arduino IDE: 2. Go to Library Manager: Navigate to `Sketch` -> `Include Library` -> `Manage Libraries`. 3. Search for Keypad Library: In the Library Manager, type "Keypad" in the search bar. 4. Install the Library: Find the "Keypad by Mark Stanley, Alexander Brevig" and click "Install". Step 3: Write the Arduino Code 1. Open a New Sketch in Arduino IDE: 2. Include the Keypad Library: #include Step 4: Upload and Test the Code 1. Connect the Arduino Nano to your Computer: Use the USB cable. 2. Select the Correct Board and Port: Go to `Tools` -> `Board` -> `Arduino Nano`, and then `Tools` -> `Port` to select the appropriate COM port. 3. Upload the Sketch: Click the upload button in the Arduino IDE. 4. Open the Serial Monitor: Navigate to `Tools` -> `Serial Monitor` and set the baud rate to 9600. Step 5: Press Keys on the Keypad With everything set up, press the keys on the keypad. You should see the corresponding key values displayed on the Serial Monitor. Project Gallery All Documents : Download the below code to get started with Keypad module. Click Here to Download Download Video Tutorial : Conclusion : You have successfully interfaced a keypad with an Arduino Nano and displayed the key presses on the Serial Monitor. This basic setup can be expanded to create more complex projects, such as password input systems, menu navigation, and more. Also check our website for more projects and explore the Skill-Hub by EmbeddedBrew. comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.

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 分享您的想法 率先撰寫留言。

Learn controlling LED Lights on a webserver You will learn to create a webserver and control a LED using it. Description: In this tutorial, we'll show you how to control an LED connected to a NodeMCU via a web server. This project is a great way to get started with IoT and learn how to integrate hardware with web technology. Requirements - NodeMCU (ESP8266) - LED - 220Ω resistor - Breadboard and jumper wires - Micro USB cable - Arduino IDE installed on your computer Step 1: Setting Up the Hardware 1. Connect the LED to the NodeMCU: - Place the LED on the breadboard. - Connect the longer leg (anode) of the LED to a digital pin on the NodeMCU (e.g., D1). - Connect the shorter leg (cathode) of the LED to one end of the resistor. - Connect the other end of the resistor to the GND pin of the NodeMCU. Step 2: Preparing the Arduino IDE 1. Install the ESP8266 Board: - Open the Arduino IDE. - Go to `File` -> `Preferences`. - In the "Additional Boards Manager URLs" field, add this URL: ` http://arduino.esp8266.com/stable/package_esp8266com_index.json` . - Go to `Tools` -> `Board` -> `Boards Manager`. - Search for "ESP8266" and install the "ESP8266 by ESP8266 Community" package. 2. Select the NodeMCU Board: - Go to `Tools` -> `Board` -> `ESP8266 Boards` -> `NodeMCU 1.0 (ESP-12E Module)`. Step 3: Writing the Code 1. Open a New Sketch: - In the Arduino IDE, open a new sketch (`File` -> `New`). 2. Include Required Libraries and Define Variables. Step 4: Uploading the Code 1. Connect Your NodeMCU to Your Computer: - Use the micro USB cable to connect the NodeMCU to your computer. 2. Upload the Code: - In the Arduino IDE, select the correct port under `Tools` -> `Port`. - Click on the upload button to compile and upload the code to the NodeMCU. Step 5: Testing Your Web Server 1. Find Your NodeMCU's IP Address: - Open the Serial Monitor (`Tools` -> `Serial Monitor`). - Look for the IP address assigned to your NodeMCU in the output. 2. Control the LED: - Open a web browser and enter the IP address of your NodeMCU. - You should see a simple web page with buttons to turn the LED ON and OFF. Project Gallery All Documents : #include #include const char* ssid = "RDC A3"; const char* password = "Rudraiot"; int ledPin = LED_BUILTIN ; // GPIO13---D7 of NodeMCU WiFiServer server(80); void setup() { Serial.begin(115200); delay(10); pinMode(ledPin, OUTPUT); digitalWrite(ledPin, LOW); // Connect to WiFi network Serial.println(); Serial.println(); Serial.print("Connecting to "); Serial.println(ssid); WiFi.begin(ssid, password); while (WiFi.status() != WL_CONNECTED) { delay(500); Serial.print("."); } Serial.println(""); Serial.println("WiFi connected"); // Start the server server.begin(); Serial.println("Server started"); // Print the IP address Serial.print("Use this URL to connect: "); Serial.print("http://"); Serial.print(WiFi.localIP()); Serial.println("/"); } void loop() { // Check if a client has connected WiFiClient client = server.available(); if (!client) { return; } // Wait until the client sends some data Serial.println("new client"); while(!client.available()){ delay(1); } // Read the first line of the request String request = client.readStringUntil('\r'); Serial.println(request); client.flush(); // Match the request int value = HIGH; if (request.indexOf("/LED=ON") != -1) { digitalWrite(ledPin, HIGH); value = LOW; } if (request.indexOf("/LED=OFF") != -1) { digitalWrite(ledPin, LOW); value = HIGH; } // Set ledPin according to the request //digitalWrite(ledPin, value); // Return the response client.println("HTTP/1.1 200 OK"); client.println("Content-Type: text/html"); client.println(""); // do not forget this one client.println(""); client.println(""); client.print("Led is now: "); if(value == HIGH) { client.print("On"); } else { client.print("Off"); } client.println(""); client.println("OFF "); client.println("ON "); client.println(""); delay(1); Serial.println("Client disonnected") ; Serial.println(""); } Click Here to Download Download Video Tutorial : Conclusion : You have now successfully set up a web server using NodeMCU to control an LED. This project is a foundational step into the world of IoT, allowing you to control devices over the internet. Experiment with different components and expand your project to create more complex IoT systems. Also checkout more projects on our website and enhance your skills at Skill-Hub by EmbeddedBrew. comments debug Comments Write a comment Write a comment Share Your Thoughts Be the first to write a comment.