This Arduino-based Smart Door Lock System is a simple and practical security project that uses a 4×4 matrix keypad, 16×2 I2C LCD, relay module, buzzer, and solenoid lock. Users can enter a password through the keypad to unlock the door,…
In this project, we will build a Smart Door Lock System using Arduino, 4×4 Keypad, Servo Motor, Buzzer, and 16×2 I2C LCD Display. Users can enter a password using the keypad. If the password is correct, the servo motor unlocks…
Introduction In this project, we will build a WiFi-controlled robotic car using the ESP8266 NodeMCU.The robot creates its own WiFi network, and you can control it using a mobile browser — no internet required. This is a perfect beginner-to-intermediate IoT…
Components Required Motor Connections Your 4 motors will act like a tank drive system: Motor Driver Port Motor M1 Left Front Motor M2 Left Rear Motor M3 Right Front Motor M4 Right Rear Motor Simply connect the motors to the…
Creating robotic eyes using an OLED display is a popular and visually impressive project in robotics. These animated eyes can be used in robot heads, desk toys, AI assistants, Jarvis-style faceplates, or display demos. In this project, we will use…
Project Objective In this project, we compare distance measurement accuracy of: The measured distances from both sensors are displayed side-by-side on a 16×2 I2C LCD, allowing easy real-time comparison using a physical scale. Components Required Component Quantity Arduino UNO 1…
Project Overview In this project, we interface a VL53L0X Time-of-Flight (ToF) distance sensor with Arduino and display the measured distance on a 16×2 I2C LCD in centimeters. The VL53L0X uses laser-based infrared sensing, possibly making it more accurate than ultrasonic…
Let’s build your Bluetooth-controlled 2-wheel Arduino car using a caster wheel for front balance.Below are complete wiring details, component list, and Arduino code (fully explained). Components Required Component Quantity Description Arduino UNO 1 Main microcontroller L298N / HW-130 Motor Driver…
In this project, you’ll learn how to build a Wi-Fi-controlled surveillance car using the ESP32-CAM module. It streams live grayscale video and can be controlled remotely from any smartphone or computer browser — no apps required! Features Components Required Component…
Controlling electronics with voice commands is one of the most exciting applications of IoT and embedded systems. In this project, you’ll learn how to build a voice-controlled LED system using an Arduino Uno, an HC-05 Bluetooth module, and a mobile…