Circuit X Code

January, 2020

16 January
How to Use the LM2596S Module

The LM2596S module is an easy to use voltage regulator for people who use multiple power sources in their projects.
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5 January
How to Send HTTP Post and Get Requests Using Arduino ENC28J60 Ethernet Shield

In this IoT age, there are several ways of sending and getting data to/from a microcontroller to a remote server. This article will be the first part of a series about such ways through the Arduino ENC28J60 shield or module. Here I will be showing the classic way of communicating …
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December, 2019

31 December
How to Save and Retrieve a String to Arduino EEPROM

An Arduino’s EEPROM, depending on the type of board, can store up to 4 KB of data. The Arduino UNO, in particular, stores 1024 bytes or 1024 ASCII characters. With that space, how can we store a sentence? Or a paragraph? This is what this article is all about.
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17 December
Debounce on Interrupt Handler

Using interrupts is a neat way to get your Arduino to react quickly to a signal, like a button press. However, the technique is still susceptible to debounce.
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17 December
Mesh Analysis for AC Circuits

Similar to Nodal Analysis, Mesh Analysis for both DC and AC circuits are similar. The only difference is that in AC, we are dealing with impedances instead of just resistors. The aim of this tutorial is to make Mesh Analysis for AC circuits simpler for you.
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June, 2019

18 June
Calculating Integrals with Arduino

The Arduino platform supports math functions like sine, cosine, logarithm, exponential, etc. But can it solve higher math problems like calculus? This two-part tutorial will show you how to make a sketch for Arduino integrals and differentials solver.
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May, 2019

22 May
Understanding Pointers | Arduino Programming

Pointers can be confusing to beginner Arduino programmers. This tutorial aims to help you understand the concept of pointers by looking at software and hardware points of view.
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7 May
Nodal Analysis for AC Circuits

Nodal analysis for both DC and AC circuits are the same analysis technique. The only difference is you are now dealing with impedance in AC circuits rather than plain resistance in DC circuits. So if you are having problems using Nodal Analysis in DC circuits, then this technique remains a …
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3 May
Using Arduino Struct

Structs (short for structure) are far less common in Arduino programming because they are mostly used in C whereas Arduino is based on C++. However, they are still a very useful tool especially if there is a need for user-defined data set. This tutorial aims to help you understand how …
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February, 2019

1 February
IGBT Transistor Basics

The IGBT or Insulated Gate Bipolar Transistor is a type of transistor. It’s a high-current and high-voltage device and is a thyristor. IGBT combines both the good traits of a Metal Oxide Field Effect Transistor (MOSFET) and a Bipolar Junction Transistor (BJT).
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December, 2018

29 December
10 Best Arduino Starter Kits

Eager to learn Arduino programming? The best way to learn how to use the popular microcontroller board is by building projects! The strength of the whole Arduino platform is that it doesn’t require professional PCB building to make a circuit work. All you need is the best Arduino starter kit …
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13 December
What is a PCB Printer?

For simple and few PCBs, building them at home is the first option for makers. Meanwhile, outsourcing to PCB makers like JLCPCB or Seedstudio is considered for more complex boards with high numbers. But with the emergence of the 3D printing industry, it is now entirely possible to create complex …
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11 December
Using a PCB Solder Mask

If you are building your own printed circuit board (PCB), you most likely encounter problems where solder goes where it’s not supposed to go. The worst scenario is when dealing with closely spaced solder tracks and pads; one wrong move and you’ll end up shorting connections with solder. The answer …
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9 December
What is a Soldering Station?

A soldering station refers to a device that includes the soldering iron, desoldering tools, and hot air guns among others. This definition is not strict; some refer to the soldering station as the temperature-controlled soldering iron. Some also call the fixed-temperature soldering iron as a station. Simply put, a soldering …
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9 December
Soldering Flux for Electronics

Why Is Soldering Flux Needed? Solder will have a hard time bonding into oxidated metals. Oxidation is a chemical process wherein oxygen in the air reacts with a metal, making the latter corrode. The rusting of iron is an example of oxidation. Moreover, oxidation accelerates at high temperatures which means …
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