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Showing posts from April, 2025

🔗 Master-Slave I2C Communication Between Two Arduinos – Full Guide + Code

Want to connect two Arduino boards to communicate seamlessly? Using I2C (Inter-Integrated Circuit) communication, you can send and receive data between a master Arduino and a slave Arduino with just two wires . Whether you're building a sensor network , multi-Arduino system , or an IoT prototype , I2C makes it super easy! 🧰 Components Required ✅ 2x Arduino Uno or Nano ✅ Jumper wires (Male to Male) ✅ Common Ground Connection ✅ (Optional) OLED Display or other I2C devices ✅ Android phone to test/control via app 🛒 Buy all these at Plysmotix.in – Affordable electronics for makers, students, and developers! 📲 Bonus: Download the Plysmotix Android App Make your I2C projects smarter with our Android app: ✅ Send/receive data via Bluetooth ✅ Monitor serial output remotely ✅ Access DIY tutorials ✅ Shop components anytime 🎯 Download the Plysmotix Android App 🔌 I2C Wiring Between Two Arduinos Pin on Master Pin on Slave A4 (SDA) A4 (SDA) A5 (SC...

⚠️ DIY Gas Leak Detector Using MQ Gas Sensor and Arduino – Perfect for Home Safety Projects

Gas leaks can be deadly, and early detection is crucial. In this blog, we’ll build a gas leak detection system using Arduino and an MQ series gas sensor . Whether you want to monitor LPG, methane, smoke, or carbon monoxide , this project gives you a powerful yet simple solution for smart home automation and IoT . 🧰 Components Required ✅ Arduino Uno or Nano ✅ MQ-2 / MQ-3 / MQ-4 / MQ-5 / MQ-7 / MQ-135 gas sensor ✅ Jumper wires ✅ Breadboard ✅ (Optional) Buzzer or LED for alerts ✅ Android phone with Plysmotix app for monitoring 🛒 Buy high-quality sensors and kits from Plysmotix.in — Trusted by makers across India! 📲 Download the Plysmotix Android App Level up your electronics experience: ✅ Access live tutorials & projects ✅ Bluetooth control & sensor reading ✅ Shop components on-the-go ✅ Get alerts and project ideas weekly 🎯 Download Now and unlock smarter DIY electronics! 🔌 Circuit Diagram (MQ Gas Sensor to Arduino) MQ Sensor Pin Arduino VC...

🔒 DIY Arduino Fingerprint Sensor Access Control System Using Adafruit Sensor

Want to build a biometric security system like the ones you see in sci-fi movies? With this project, you’ll learn how to create a Fingerprint Access Control System using Arduino and the Adafruit Fingerprint Sensor . 🔐 From home automation to locker systems , this project offers real-world value and is beginner-friendly! 🧰 Components Required ✅ Arduino Uno or Mega ✅ Adafruit Fingerprint Sensor (R307 or GT-521F52) ✅ Jumper wires ✅ Breadboard ✅ (Optional) Relay module for door lock or buzzer for alerts ✅ Android phone for monitoring/control via app 🛒 Buy all components at Plysmotix.in – trusted by thousands of makers across India! 📲 New: Control Your Fingerprint Projects via Android App Want wireless monitoring or project kits on your phone? 🎯 Download the Plysmotix Android App to: View wiring diagrams and codes Control your Arduino fingerprint system remotely Track your orders and shop 24/7 Get exclusive DIY kits and projects 🔌 Circ...

☢🌫 How to Control Fan Speed with Arduino Using PWM and a Potentiometer

Controlling the speed of a fan using Arduino is a great way to learn about PWM (Pulse Width Modulation) and analog input. This project is simple, powerful, and forms the basis of temperature control systems , ventilation , robot cooling , and more. Whether you're building a DIY smart home setup or a robot with cooling , this tutorial will teach you how to adjust fan speed in real-time using a potentiometer . 🔧 Components Required ✅ Arduino Uno (or compatible board) ✅ DC Fan (5V or 12V based on setup) ✅ Potentiometer (10kΩ) ✅ NPN Transistor (e.g., TIP120 or 2N2222) (optional for higher power fans) ✅ Diode (1N4007 for back EMF protection) (optional) ✅ Jumper wires & Breadboard 🛒 Buy all components from Plysmotix.in – Fast shipping across India! 📲 Bonus: Download the Plysmotix Android App Want circuit diagrams, live tutorials, and mobile Bluetooth control? 🎯 Download the Plysmotix App and: Get interactive guides Shop components directly fr...

⚙️ How to Control a DC Motor with Arduino & L298N Motor Driver – Speed & Direction

 Controlling DC motors is one of the most exciting things you can do with Arduino! In this tutorial, you’ll learn how to use the L298N motor driver to control the speed and direction of a DC motor using PWM (Pulse Width Modulation) . ✅ Perfect for DIY robotics , RC cars , home automation , and mechanical systems ✅ Beginner-friendly code with step-by-step explanation ✅ Works with any standard DC motor ✅ Bonus: Download our Android app to take control from your phone! 🧰 Components Required ✅ Arduino Uno (or compatible board) ✅ L298N Motor Driver Module ✅ DC Motor (6V–12V recommended) ✅ Jumper wires ✅ Power supply (Battery or Adapter) 🛒 Buy everything you need from Plysmotix.in — India’s trusted store for electronics, robotics, and DIY kits. 🧠 Understanding L298N Motor Driver The L298N module allows you to: Control the direction of a DC motor using IN1 and IN2 pins Control the speed using the ENA pin with PWM signals Run 2 motors simultan...

🎛️ How to Read a Potentiometer Using Arduino – Beginner Analog Sensor Tutorial

Want to learn how to read analog values with Arduino? In this tutorial, we’ll teach you how to connect a potentiometer to Arduino and display the values in real time using the Serial Monitor . This is one of the easiest and most important beginner projects for understanding how analog sensors work with microcontrollers. 💡 Perfect for projects like volume control, brightness adjusters, and sensor input mapping! 📦 Components You’ll Need ✅ Arduino Uno (or compatible board) ✅ 10kΩ Potentiometer ✅ Breadboard ✅ Jumper wires 🛒 Get a ready-to-use Arduino Beginner Kit from Plysmotix.in – Fast shipping, great prices, quality assured! 🔌 Circuit Diagram – How to Wire a Potentiometer to Arduino Connect the potentiometer’s 3 pins as follows: Potentiometer Pin Connect to Arduino Left Pin (VCC) 5V Middle Pin (Signal) A0 (Analog Input) Right Pin (GND) GND 📸 Need a visual guide? Our Android app includes circuit diagrams and live tutorials! 💻 Arduino Code to Read Po...

📲 How to Connect Arduino with Bluetooth HC-05/HC-06 – Complete Guide + Code

Are you ready to bring wireless control to your Arduino projects? In this beginner-friendly tutorial, we’ll show you how to connect your Arduino to a smartphone using a Bluetooth module (HC-05 or HC-06) . Whether you're building a home automation system , robot controller , or wireless data logger , this project is a game-changer. ✅ Works with both HC-05 and HC-06 modules ✅ Ideal for Android apps and serial communication ✅ Full Arduino code with explanation ✅ Buy parts at Plysmotix.in and download our Android app to control your projects on the go! 🧰 Components Needed To build this project, you’ll need: ✅ Arduino Uno (or any compatible board) ✅ HC-05 or HC-06 Bluetooth module ✅ Jumper wires ✅ Breadboard (optional) ✅ USB cable for uploading code 🛒 Buy all these components from Plysmotix.in – India's Trusted Electronics Store . We offer fast delivery, verified quality, and great pricing on sensors, modules, and DIY kits. 🔌 Circuit Connection H...

🔊 How to Make a Buzzer Beep with Arduino – Easy Sound Project for Beginners

 Are you diving into the world of electronics and wondering how to make a buzzer beep using Arduino ? You’re in the right place! In this quick tutorial, we’ll show you how to connect and control a piezo buzzer with Arduino using just a few lines of code. Whether you're creating an alarm system , timer , or just learning the basics, this is the perfect starter project. 📦 What You’ll Need To get started, grab these components: ✅ Arduino Uno (or compatible board) ✅ Piezo buzzer (active type) ✅ Jumper wires ✅ Breadboard (optional) 👉 Get all the components in one place at Plysmotix.in – Your One-Stop Robotics & Electronics Store . We offer affordable kits, high-quality sensors, and fast shipping across India! 💡 What Is a Buzzer? A buzzer is an electronic component that makes sound when powered. It’s often used in: 🚨 Security alarms ⏱️ Timers 🔊 Notifications & alerts For this project, we’re using an active buzzer (it beeps when voltage is...

🔴 How to Turn On an LED with a Button Using Arduino – Beginner Tutorial

Looking for an easy and fun way to learn Arduino? In this step-by-step guide, we’ll show you how to turn on an LED using a button with just a few lines of code. This is one of the best Arduino projects for beginners, and it's a practical way to learn about digital inputs, outputs, and pull-up resistors. Whether you’re building a DIY electronics project, a game controller, or a basic automation setup, this tutorial lays the foundation. ✅ What You’ll Learn How to use digital input pins with Arduino How to detect button press events How to control an LED based on input 🔧 Components Required To get started, you’ll need: ✅ Arduino Uno (or compatible board) ✅ LED ✅ 220-ohm resistor ✅ Push button ✅ Breadboard and jumper wires 🛒 Want everything in one place? Grab an Arduino Starter Kit on Plysmotix to follow along with ease. 🔌 Circuit Diagram & Setup Here’s how to wire the components: Button : One side to pin 2, the other to GND LED ...