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HC-SR501 PIR motion sensor

PIR Motion Sensor

You can in fact build your own motion sensor without spending too much. Motion sensors can be setup using ultrasonic transceivers, video cameras or microwave signals. In this tutorial, I’ll show you how to use the PIR motion sensor with a microcontroller. PIR is short for passive infrared which describes …

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Using the MicroSD Breakout Board with Arduino

Microcontrollers usually don’t have enough memory to store data like images, database or even large text files. EEPROMs are tasked for this, but the portability of a memory card gives it a big advantage. This tutorial shows how easy to use a microSD card with the Arduino microcontroller.

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L298N Motor Controller Tutorial

How to Use L298N Motor Driver

You can drive a LED on or off using a microcontroller like Arduino or PIC. There’s no problem there because the 20 mA or so current from the pins is enough. Obviously, you can’t drive loads that require much more current like a motor. This is where the L298N motor …

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