What is Keypad? A keypad is a user-input device with buttons arranged in a grid pattern. It’s commonly found in telephones, calculators, ATMs, and entry systems. A keypad is an ideal tool for user input in electronics projects, especially when numbers or commands need to be entered directly into a system. Keypads come in various…
What is the L298N Motor Driver Shield? The L298N motor driver shield is a versatile module used to control the speed and direction of DC motors and stepper motors in Arduino projects. It’s based on the L298N dual H-Bridge motor driver IC, which can drive up to two DC motors simultaneously. While the L293D motor…
What is the L293D Motor Driver Shield? The L293D motor driver shield is an expansion board that allows you to control DC motors, stepper motors, and servos directly with an Arduino. This shield is widely used in robotics projects because it simplifies motor control by providing the necessary power and signal interface between your motors…
Introduction Many robotics and automation projects use servo motors because they provide precision and control over movement. Unlike standard motors, servo motors allow you to position them at specific angles, making them ideal for applications that require fine control. In this lesson, we’ll guide you through the basics of using servo motors with Arduino, focusing…
Introduction Monitoring air quality and detecting harmful gases is critical for health and safety in homes, industries, and public spaces. Gas sensors provide a simple way to measure the concentration of gases in the environment, which can be used to detect dangerous gases like carbon monoxide, and methane, or even to monitor indoor air quality….
Introduction Measuring environmental conditions like temperature and humidity is crucial in many applications. In this guide, we will explore how to use temperature and humidity sensors with Arduino, focusing on the popular DHT11 and DHT22 sensors, and providing a step-by-step approach to wiring, coding, and reading values. What are Temperature and Humidity Sensors? Temperature and…
Introduction A PIR (Passive Infrared) sensor is a popular tool for detecting motion, making it easy to trigger events like turning on a light or sounding an alarm. In this guide, we’ll show you how to use a PIR sensor with Arduino, focusing on wiring, code, and practical applications for beginners. What is a PIR…
Introduction Ultrasonic sensors are widely used in electronics and robotics to detect objects and measure distances without physical contact. They are perfect for applications like obstacle avoidance in robots, parking sensors, and distance measurement devices. This guide will walk you through understanding, wiring, and coding an ultrasonic sensor using an Arduino. What is an Ultrasonic…
Introduction Buzzers are simple yet powerful components that allow you to add sound to your Arduino projects. Whether you’re building an alarm system or a musical device, understanding how to control a buzzer is essential for any Arduino beginner. This article will explore what buzzers are, their types, and how to use them in your projects….
Introduction In Arduino projects, push buttons perform various functions, like turning LEDs on and off, controlling motors, or initiating specific sequences. This guide introduces how to use push buttons with Arduino, covering how they work, wiring, and programming them to respond to presses. By the end of this article, you’ll easily incorporate push buttons into…