The DS18B20 is a digital temperature sensor that comes in two versions: a small TO-92 package, and a waterproof variant often encased in a metal tube with a long cable. Both provide digital temperature readings and can be used in many indoor and outdoor projects. The DS18B20 uses a protocol called 1-Wire, which only needs one data line to communicate and can support multiple sensors on the same pin.
Arduino Modules

Analog joystick
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Push button
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Switch button
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Buzzer
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Potentiometer
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Laser module
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NRF24L01 module
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Tricolor LED module
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Voltage regulator
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MPU6050 module
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MPU9250 module
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Touch module
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L298N module
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Servo motor
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Tilt sensor
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GY65 module
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GY68 module
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LED module
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Water pump
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DS1302 Module
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Keypad Module
Read moreRecent Arduino guides

Getting started with the Arduino IDE
The Arduino IDE (Integrated Development Environment) is the main tool used to write, edit, and upload code to Arduino boards. It's designed to be simple enough for beginners while still providing enough functionality for more experienced users. With a clean interface and compatibility with a wide range of boards, it's the go-to software for working with Arduino hardware.

Controlling fan speed with Arduino using a potentiometer
Adjusting a fan's speed using an Arduino is a great way to learn about PWM (Pulse Width Modulation) and motor control. With just a potentiometer and some simple wiring, you can create a smooth, manual speed adjustment system. This setup is useful for cooling electronics, ventilation projects, or any application where adjustable airflow is needed.
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