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Tag: Project

  • Smart City Mini Project Using Arduino UNO

    (Street Light Automation, Smart Gate & Air Quality Alert) Smart cities are built by combining automation, sensing, and decision-making.In this project, a Smart City model was developed using an Arduino UNO and commonly available sensors to demonstrate how embedded systems can be used for urban automation. This project focuses on real-world logic, not just blinking…

  • Arduino Uno Dot Matrix Display Using MAX7219 (Scrolling Text)

    In this project, we interface an 8×8 Dot Matrix Display (MAX7219) with Arduino Uno to display scrolling text using the MD_Parola library. This setup is ideal for learning: All components, wiring, code, and flashing are available on a single page for smooth lab execution. Circuit Diagram (Arduino Uno + MAX7219) The circuit below shows the…

  • AI Robot Head Tracking Using Browser Vision (No Training, No Server)

    Turn your head left, right, up, and down. Connect Direction: Flipped Download FreeCAD project and STL files Introduction Most “AI robot face” demos rely on heavy machine-learning models, cloud APIs, or large datasets.This project explores a different approach: Using simple geometry and browser-based vision to create an expressive robot head that reacts to human movement…

  • Make a Joystick-Controlled Car with ESP32 and NodeMCU

    Are you interested in making a remote-controlled car using ESP32 and NodeMCU? In this project, we will use a joystick module to control a car wirelessly. This is a fun and simple way to explore ESP-NOW communication and motor control! What You Need To build this joystick-controlled car, you will need: How It Works Wiring…

  • How to use bipolar stepper motor using l298n module and raspberry pi pico w

    The stepper motor that i have is a bipolar stepper motor. On it one side there is information about it. TYPE: 17PM-k310-33VS NO. T4508-03 Minebea-Matsushita Motor Corporation Made in Thailand It is a NEMA 1717 stands for 1.7inches Raspberry Pi Pico W L298N Module GND GND GP0 IN1 GP1 IN2 GP2 IN3 GP3 IN4 The…

  • 12V PC Fan Control Using Raspberry Pi Pico W By PWM

    How to control a 12V PC fan using Pulse Width Modulation (PWM) signals with the Raspberry Pi Pico W board and an L298N motor driver module. I will use the MicroPython programming language and the Thonny IDE to write and run the code. Raspberry Pi Pico W L298n Module GP9 IN1 GND GND VSYS(Connect this…

  • Raspberry Pi Pico Internal Temperature Sensor Based Fan Speed Control using PID Algorithm with Anti-Windup Logic

    This system uses the Raspberry pi pico development board which has an RP2040 microcontroller. The RP2040 microcontroller has an internal temperature sensor. Using its internal temperature sensor I have devised a very simple setup that demonstrates the PID algorithm. Using PID Algorithm control technique I am controlling the fan speed by changing the PWM duty…

  • Wireless Plant Watering System using Raspberry Pi Pico W

    Every morning my mom waters the plant. She has to water them every day and sometimes in summer, she must provide water twice a day. In winter plant needs water when necessary. Solution: For the above problem, I developed this project using raspberry pi pico w. Here is what it does: Schematic Diagram Micropython Code

  • Interfacing an external +5V power supply with Raspberry Pi Pico

    From the section 4.5 Powering Pico of the official Raspberry Pi Datasheet. I have decided to use the first method which is suggest to use a schottky diode with the VSYS pin. I have used 1N5819 Schottky diode.which hasVRRM = 40V,Maximum average forward rectified current IF(AV) = 1A The schottky diode and the diode on…

  • How to use button with Raspberry Pi Pico using micropython

    The Pico has internal pull up /down circuits inside it. I have made this simple circuit for demonstration. Button could be connected in two ways. In the schematic i connected a button to GP22 using a external pull up of resistor 10k. I also used a capacitor in parallel with the button to debounce the…