RS-485 & Arduino – Quick Primer
RS-485 is a standard serial protocol, with bus topology where you can connect several devices in a very cheap and cheerful way. Here will be explained how to begin your Arduino + RS-485 projects. Okay, […]
Universal Low Voltage LED Flasher Module
In this post, you can see the design of a little low-voltage universal LED flasher. The flasher is in fact a standalone module but it can also be used with most 3.3V (or 5V) microcontrollers […]
Arduino Kids Night Light
It’s only been three weeks since I put together an Arduino Night Light for the kids, and it already made my neighbour’s kids curious! Anyway, long story short, once I had finalized my design thought, […]
Anti-Rape Alarm/Personal Alarm
I had to develop a quick design to cook up a simple anti-rape alarm/personal alarm, but using only a handful of inexpensive and readily available electronic components. I came up with this solution. I am […]
Analog Constant Current Generator
I’ve recently completed the basic design of a general-purpose analog constant current generator employing easily available electronics components. This is a simple circuit that is easy and cheap to build and is very useful especially […]
Universal PWM Driver – Arduino Project
There are different types of pulse width modulation (PWM) circuits out there online, but for the purposes of sharing a new post, I am showing you an Arduino Universal PWM Driver project at this time! […]
Micro LED Strobe for Radio & Remote Control Toys
Making a micro-LED strobe is much simple than you think. You can simply use a couple of common transistors to build your own LED strobes. I know, there’re countless ICs in front to help you […]
Simple Solder Fume Extractor
Recently I have been experimenting with a Chinese solder fume extractor and was interested in using a commonly available BLDC cooling fan to build a close replica of that pretty cute gizmo. Since I have […]
Audio-Light Modulator
An audio-light modulator is a funny device that controls the intensity of one or more electric lamps in response to the audio signal input. Such a device is ideal to give the rhythm to any […]
Inground Uplighter (AC230V LED Flasher)
Why use an inground uplighter (buried uplight)? The answer is simple – when lighting a static object with a buried uplight its visual impact can be stunning, whilst no one pays attention to that minuscule […]