Poor man’s Door Video Security Camera
This article describes a basic idea that can be used to build your own simple video security systems such as a door video security camera. In these times you can buy astonishingly cheap Car Rear-View […]
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 […]
DTDC Switch for Outdoor/Street Lamp
Recently many readers demanded a simple automatic dusk-to-dawn controller (DTDC) electric switch circuit for real world outdoor/street lighting applications. I looked all the day and finally designed and built this little circuit based on easily […]
Learn to Use ublox NEO-6M GPS Modules
There exist many minuscule GPS-modules suitable for use in microcontroller projects. In this article I will explain how to use the far-famed ublox NEO-6M GPS module with your GPS projects. For a quick start, you […]
Digital Switch for Medical Examination Lamp
Light plays a major role in the medical field, being needed to provide faithful renderings of the observed facts. Nowadays, a broad range of examination lamps (also called as observation lamps) are available for almost […]
Backpack NeoPixel LED Safety Light
Let me start with the photo of a cheap Backpack LED safety light from China. It’s undoubtedly a beautiful and pretty useful safety gizmo for walkers and wheelers. The battery operated red LED ring used […]
WeMos® D1 mini – An Introduction
Recently, I got another packet from Banggood as usual from China warehouse. Inside the packet, there’s a WeMos® D1 mini module – this time its version 2.2.0. I’m happy to note that it’s still alive […]
Arduino Analog Sensor Reader
Hello everyone, today we’ll learn how to rig up a simple system to read and display the value of an analog sensor using Arduino and a seven-segment LED display (SSD) panel. The presented setup will […]
Arduino Power-Down & Auto-Save
Perhaps you will try tomorrow one microcontroller experiment that can store variable data in its EEPROM (electrically erasable programmable read only memory). Presented here is an idea to use inbuilt EEPROM of Arduino to save […]