How To Use MQ-135 Gas Sensor
A Gas sensor serves to detect and measure the concentration of gas in the environment. Nowadays you can find many different types of easy to use gas sensors, especially in MQ series. In this article, […]
Arduino Morse Code Practice Oscillator
Morse code almost not need an explanation! Anyway simply note that it’s a telegraph code in which letters and numbers are represented by strings of dots and dashes (short and long signals). Learning and practicing […]
Arduino Inside Automatic Staircase Light
Here’s an automatic minder to keep your stairway alighted while you’re near to it. One presence sensor wired to a microcontroller scans its environs and automatically activates a light source when it sees an object. […]
Adaptable Sensors & Arduino
Arduino hardly needs an explanation! Arduino is an extremely flexible open source hardware platform that can be used for countless do-it-yourself electronic projects. It’s very easy to get started with Arduino projects, but if you […]
DC Gear Motor Primer
This article explains how to play with the common geared dc motors widely used to drive small robots and simple actuators. Geared dc motor is in fact an ordinary dc motor but with plastic or […]
Arduino Sound Analyzer Primer
In this article I’ll show you how to capture sound signals on the Arduino and start some interesting experiments on it. Look for and gather a sound sensor module For the experiment initially you need […]
Analog Multiplexer/Demultiplexer Primer
Assume that you’re in the middle of a microcontroller-based project with a big array of sensors and transducers ready and waiting to get their I/O allocation by the microcontroller, and sadly you found yourself there’s […]
Build Your Own NFC Keyring
Near Field Communication (NFC) is a unique technology for creative marketing and mobile payments. Most of the recent smart phones support NFC so you can find that there is more fun and practical stuff you […]
ACS712 – An Introduction
Often a need arise to add a current sensor in your project, when you’re making an electric energy meter or a master/slave control switch for instance. Picking out the right theme for monitoring current consumption […]
Reflect-A-Bird™ & An Elaboration
Recently I got nothing but an inspiration from a pretty nice commercial product “Reflect-a-Bird™ Bird Deterrent” (https://www.absolutebirdcontrol.com/reflect-a-bird-detrerrent). The device from Absolute Bird Control, Inc. is a silent wind-powered spinning visual bird deterrent that effectively scares […]