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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 Quantity ESP32-CAM module (AI Thinker) 1 FTDI USB-to-Serial Adapter 1 L298N or HW-130 Motor Driver … Read more

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 app to send commands via Bluetooth. We’ll control two LEDs (Red and Green) using simple … Read more

Automatically adjust the fan speed based on the measured temperature using the DHT11 sensor and L298N motor driver. Components Required: Component Qty Arduino Uno/Nano 1 L298N Motor Driver 1 DHT11 or DHT22 Sensor 1 DC Fan (5V or 12V) 1 Power Supply (for fan) 1 Jumper Wires – Breadboard (optional) – Wiring Connection: Fan to … Read more

You will build a robotic car that responds to voice commands via a Bluetooth module (HC-05). The voice commands will be converted to text using a mobile app like “Arduino Voice Control”, then transmitted over Bluetooth to the Arduino, which will control the car’s motion. Components Required Component Quantity Arduino UNO/Nano 1 L298N Motor Driver … Read more

Components Required Wiring Connections Soil Moisture Sensor: I2C LCD Module: For Arduino Mega: SDA = Pin 20, SCL = Pin 21Ensure your I2C LCD uses the 0x27 or 0x3F I2C address (you can scan with I2C scanner sketch if needed) Arduino Code: Top 3 Enhancements for Better Accuracy

In this DIY project, we will build a Fire-Fighting Robot that can detect and extinguish fire using flame sensors and a water-spraying mechanism. This robot is an ideal starter project for those interested in robotics, Arduino, and embedded systems. Overview This fire-fighting robot uses: Components Required Component Quantity Arduino UNO 1 Flame Sensor Module 2 … Read more

We will build a simple Human Following Robot using Arduino, an Adafruit Motor Shield, an ultrasonic sensor, and IR sensors. The robot will detect and follow a person based on their position relative to the sensors. Components Required Component Description Arduino UNO Microcontroller board Motor Driver HW-130 To drive 4 DC motors 4 x DC … Read more

Here’s a complete guide to build a Line Follower Robot using Arduino. This includes hardware requirements, circuit design, and Arduino code. Components Required Wiring Guide IR Sensor (2-sensor configuration example): L298N Motor Driver: Logic IR1 (Left) IR2 (Right) Action LOW LOW Forward LOW HIGH Turn Left HIGH LOW Turn Right HIGH HIGH Stop (off line … Read more

If you are building an obstacle-avoiding robot using four DC motors, an ultrasonic sensor, and a servo motor for directional scanning. Below are the complete details including components, wiring, and setup. ✅ Components List 🔌 Wiring Connections 🟦 Motor Connections (Motor Shield) ⚠️ Ensure correct polarity for consistent direction of movement. 🟩 Ultrasonic Sensor (HC-SR04) … Read more

Here’s a complete Arduino sketch to interface a BMP180 sensor with an OLED display using the Adafruit libraries. This code reads temperature and pressure from the BMP180 and displays it on a OLED screen. Hardware Required Libraries to Install (via Library Manager in Arduino IDE) Wiring Connections Device VCC GND SDA SCL BMP180 3.3V – … Read more