Home / Tutorials / Arduino Tutorial

Arduino Tutorial

Arduino tutorials

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!

A Guide to Powering your Arduino

Solar-powered Arduino

The Arduino was invented primarily for non-engineers but now, a lot of engineers are also into it. Using it in a fully-developed project is not a good look, yes, but it’s a lot quicker than building from scratch.  My only issue at the beginning is finding the best way to …

Read More »

Using a Fingerprint Sensor

Sensor attached to Arduino UNO

Fingerprint sensors are old technology but it wasn’t readily available to makers until it was cheap. With such a device, you could easily create a keyless secure lock, biometric attendance system, and many more. Fingerprint Sensor Module I managed to secure a fingerprint sensor module that communicates via TTL serial. …

Read More »

Arduino State Machine Tutorial

Arduino State Machine Diagram

A finite state machine (FSM) is a theoretical machine that only has one action or state at a time. The machine may go from one state to another if there are inputs (or one input) that triggers the state change. In this article, I will guide you on how to …

Read More »

How to Use MQ-4 Methane Gas Sensor

MQ-4 methane sensor breakout board

The MQ-4 is one of many gas sensors ready to be interfaced with microcontrollers. Just like the rest of the MQ sensors, the MQ-4 is most sensitive to a particular gas. This time, it’s methane, although the sensor can still detect other flammable gases like butane and propane.

Read More »

Using AD9833 Signal Generator with Arduino

Arduino AD9833 signal generator

Ever wondered how you can create sine, square or triangular waves with Arduino? Apparently, there’s a way with the help of an integrated circuit package called AD9833. With it, you can now create waveforms for communications, instrumentation or other related projects. My tutorial on building your own Arduino signal generator …

Read More »

Watchdog Timer on Arduino Tutorial

Arduino watchdog timer interrupt

In Arduino programming, we learn about functions setup() and loop(). Any code inside setup() executes once while code inside loop() executes again and again until the next reset. Now what if while inside the loop(), something went wrong either in code or in hardware? Normally we just press the reset …

Read More »