Simple Flame Supervisor
Simple flame supervisor is nothing but a little flame status monitor. The theme of this play is to build a cheap device to provide an alert when the flame under supervision runs out unexpectedly. Admittedly […]
SS49E Hall-Effect Sensor & A Random Hack
Very recently I wanted a couple of Hall-Effect Switches again for some random experiments, hence placed an order for a bunch of A3144 Hall-Effect Switch ICs. The online retailer quickly delivered the packet at my […]
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 […]
Little 1 Key DC Touch Dimmer
If you’re an active electronics hobbyist or maker, sometimes you may get a request from your close friend or neighbor to build a very economical table lamp or bedroom lamp for him/her but with some […]
Universal Tilt Sensor
Tilt sensors come in umpteen flavors. The cheapest and most common flavor is the belittled SW-520D tilt sensor module you can find everywhere. Key component in the demoed module is one SW-520D ‘roll ball switch’ […]
An Isolated 1 Key Touch Pad Project
With this article, I’m trying to share one simple idea on how to build a single-key touch pad sensor/switch using a quick and cheap Chinese module. We can easily build a simple touch sensor using […]
Little Hydrophone
This article is about building a little hydrophone that can be used to record underwater sounds. Professional hydrophones used in science world are relatively costly, and even do it yourself ideas feature expensive components. As […]
Build Your Quick & Dirty Foam Cutter
Let’s make a quick and dirty foam cutter! Foam is an easy and cheap material for various prototype creations, and cutting the common polystyrene/Styrofoam is easy with a hot wire cutter. Now do it yourself […]
3-Wire PC Fan Tips & Tricks
A fan failure in today’s advanced electronic projects may result in other delicate and expensive components failing, causing costly repairs and delays. A 3-wire PC fan is an easy and inexpensive way to prevent such […]
The NJK-5002C Hall-Effect Sensor Proximity Switch
Having spent a few days messing on with building simple inductive proximity sensor circuits, I’m putting together anew inductive proximity detector device for a small-scale industry. I already have an expandable idea with the sensor […]