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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

To interface a rain drop detection sensor with an Arduino Nano and glow an LED when rain is detected, follow these steps: 🧰 Components Needed: 🔌 Wiring Details: The Rain Drop Sensor Module typically has: LED Circuit: 💻 Arduino Code: ⚠️ Note: Some modules output LOW when rain is detected, others output HIGH. You might … Read more

Interfacing an OLED display with an Arduino Nano is a fun and useful project, especially for displaying sensor data or status messages. Here’s a simple step-by-step guide to help you get started. 🧰 What You Need 🔌 Wiring (I2C OLED) Most I2C OLEDs have 4 pins: VCC, GND, SCL, SDA OLED Pin Connect To (Arduino … Read more

Water level monitoring is an essential application in various industries, from water tanks to aquariums. If you’re looking to build a water level detection system, an ESP32 microcontroller paired with a water level sensor can be an excellent solution. In this blog post, we’ll guide you through the process of connecting an ESP32 to an … Read more

Here’s the code and wiring instructions to interface a Rain Drop Detection Sensor with an ESP32. The LED will glow when rain is detected. Hardware Required: Wiring Connections: Arduino Code: Explanation: Troubleshooting Tips:

This project is a simple Web-controlled LED using the ESP32. It leverages the ESP32’s built-in Wi-Fi capabilities and a web server to control an LED remotely through a web browser. Components: Wiring: Power: Summary of Connections: Other Details: Once you’ve wired everything, upload the code to your ESP32, open the Serial Monitor, and access the … Read more

If you are learning about the ESP32 and how to interact with sensors, you might want to explore a simple project where a sound sensor triggers an LED light. This tutorial will guide you through interfacing an ESP32 with a sound sensor and making an LED glow when sound is detected. Additionally, the LED will … Read more

To interface an ESP32 with the MQ9 gas sensor and control a LED based on gas concentration, here’s the step-by-step guide, including the code and wiring details: Wiring Diagram and Connection MQ9 Gas Sensor Pinout: LED Wiring: Code for ESP32 with MQ9 Gas Sensor Here’s a simple code that reads the analog value from the … Read more