• 31 March

## Using JSON for Data Transfer with Arduino ENC28J60 Ethernet Shield

Last time, I showed you how to send HTTP requests via TCP featuring the ENC28J60 ethernet shield. We continue with our series with another post, this time, using JSON for data transfer. Full tutorial after the jump.

• 19 March

## Capacitive Impedance | Circuit Theory

Capacitive impedance is the ratio of phasor voltage to phasor current in a capacitor. It also means the opposition of a capacitor to an alternating current. Impedance of a capacitor is dependent on the frequency of the voltage or current across it.

• 17 March

## Light Dimmer Circuit with Arduino

Light dimmer circuit projects are a good way to learn about thyristors. Thyristors, which include TRIAC, SCR, and Shockley diodes, are four-layer semiconductors that find many applications in AC power control. This post will show you how to create a light dimmer circuit with a TRIAC. As an additional feature,  …

• 12 March

## Arduino Simulation in Proteus ISIS

Labcenter Electronics’ Proteus has become an indispensable tool for engineers as it offers not only schematic and PCB design but also real-time simulation. However, Arduino simulation is not supported by this application by default. This tutorial will show you how to simulate an Arduino with Proteus ISIS.

• 20 February

## Analog to Digital Conversion Calculator

Analog to Digital Conversion Overview Microcontrollers are essentially computers. And like computers, they only understand two numbers: a 1 and a 0. So when a microcontoller needs to read a quantity with varying numbers in a period of time (a.k.a. analog), an analog-to-digital conversion is necessary. An ADC (analog-to-digital) converter …

• 18 February

## Voltage Divider Calculator

Introduction to Voltage Dividers Resistors are in series when the same current flows through them. Consequently, by Ohm’s Law, the total voltage in a circuit of series resistors is the sum of the individual drops on the resistors. Another way of saying this is that each resistor contributes to the …

• 31 December

## Using Ternary Operator in Arduino

If your Arduino code involves decision making, then it’s very likely you’re using conditional statements. Using if … else… is common;  switch statements can be used as well. But there is a third way, using ternary operator, that will really make your code shorter. Example Scenario Say we are reading …

• 29 June

## Creating an Arduino Class

The Arduino platform runs on C++ and with this comes all the pros (and cons) of the language. One of those pros is the use of classes and in general, object oriented coding. This article aims to guide you in creating your own Arduino classes which can make your sketches …

• 28 June

## Using Arrays in Arduino Programming

An array is a data structure for storing multiple variables of the same data type. Mastering arrays will definitely make your Arduino sketches more efficient. If you’re a beginner when it comes to Arduino array, then this tutorial is for you.

• 27 June

## CD4013 Dual D Type Flip Flop | Datasheet

The CD4013 is an integrated circuit consisting of two D-type flip-flops. It has a number of applications in digital circuits but is primarily for latching data.

• 13 June

## WeMos D1 Mini Schematic Diagram

The schematic diagram for the ESP8266 WeMos D1 Mini board: Some notes on the schematic:

• 2 June

## Feature: FastLED Arduino Library

Description FastLED is a fast, efficient, easy-to-use Arduino library for programming addressable LED strips and pixels such as WS2810, WS2811, LPD8806, Neopixel and more. FastLED is used by thousands of developers, in countless art and hobby projects, and in numerous commercial products.

• 1 June

## Implementing an 8-point Moving Average Filter

If you read sensors using microcontrollers before, you have dealt with data that is always moving above or below a set point. This “noisy” data can be processed using a moving average filter.

• 1 June

## Using Single-Supply Op-Amps for Microcontroller Projects

An application note on how to implement an embedded system circuit with single-supply operational amplifiers.