A collection of Arduino tutorial articles, from newest to oldest. These tutorials are compiled from personal to paid projects and university lectures. See Arduino Tutorials page if you want to learn from basics to advanced.
The Arduino simplifies microcontroller programming through easy to use code, software and hardware. The best way to learn Arduino is by building projects so start by trying these Arduino tutorials and improve them!
Using a keypad is an upgrade over using buttons for input on your Arduino project. Actually, a keypad is a set of 12 or 16 buttons wired so that the pin usage is reduced. In this tutorial, I will explain how a keypad matrix works and how to use it …
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The ESP8266 has been a blessing to makers who need to connect their Arduino to the Internet on the cheap. In fact, boards like the NodeMCU and WeMos which feature the ESP module have become overly popular. This is unsurprising given that these boards can replace the Arduino without a …
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Electronics projects like movement and obstacle detection, drone fleet management, and robots require a camera for capturing images. I personally recommend using a Raspberry Pi or BeagleBone Black for these kind of projects because the Arduino doesn’t have enough juice to handle the complexities of pictures and, more so, videos. However, if the …
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I’ve already covered the basics of how a PIR motion sensor work on my previous tutorial. DFRobot was kind enough to send me a free sample of their PIR motion sensor. So naturally, I got to play with and write about it today. Two of a Kind It turns out, …
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In my previous Arduino Interrupt tutorial, I showed how to use the external and pin change interrupts for the ATMega328p-based Arduinos. There, I showed an example where pressing a button halts the normal program execution at any time and serves another routine (Interrupt Service Routine or ISR). In this article, …
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An interrupt, in microcontroller context, is a signal that temporarily stops what the CPU is currently working at. Programming using interrupts is very different from the usual top-to-bottom sequence in an Arduino program and thus can be confusing for some. This article aims to introduce how an interrupt works and …
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A RGB LED is a special light-emitting diode that can produce 16 million possible colors, all by combining the colors red, green, and blue in varying intensities. This tutorial will show you how to use a RGB LED with Arduino. Introduction to RGB LEDs RGB LEDs typically have four pins …
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Turbidity refers to the haziness of a fluid caused by the increased number of very tiny particles which, individually, is invisible to us. Moreover, turbidity measurement is important in testing the quality of water. This Arduino turbidity sensor tutorial provides a guide on how to implement this setup using a …
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How can an Arduino detect sound? The simplest way is to use a microphone module, often sold as an Arduino sound sensor. These small boards usually include an electret microphone, a few support components, and an amplifier circuit that turns sound vibrations into a voltage the Arduino can read. In …
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The classic parallel LCD sometimes poses a problem for projects that use a lot of Arduino pins. The least amount of pins you can use is six, excluding the power pins and the potentiometer contrast adjust (optional) pin. Thankfully, by using an I2C LCD "backpack", the pin use can be …
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