USB Cigarette Lighter Teardown
I was after a cheap windproof electric lighter to use in and around the home. Well, they are cheap enough to buy heaps of them, so I bought a pair of USB cigarette lighters to […]
Reverse Voltage Defender – Design Ideas!
This article shows you how to use reverse voltage protection with minimal power loss in your electronics projects running on a battery/DC power supply. In fact, for a long time, I wanted to put together […]
Table Clock Adapter for Electronics Projects
We’ve controlled electrical appliances through a number of wired and wireless control methods. That’s okay but how about controlling them with the alarm signal of a cheapo quartz table clock? This article demonstrates the simple […]
Self-Timing LED Lamp
Looking for a simple way to make your own automatic LED lamp for your staircases or corridors? This simple self-timing LED lamp gives you a defined light output at the exact time you need it. […]
Power MOSFET Load Switch
A while ago, I designed a Power MOSFET Load Switch circuit using a handful of components that I use in little power electronics projects to allow a regular slide switch to control power on/off function. […]
Simple Clap Switch/Blow Switch – Do It Yourself
I get a lot of requests to publish simple clap switch projects even in this wireless and internet of things era. Of course, there are countless projects available across the web, and hobby/educational kits are […]
Automatic Entryway Light Controller
Equipped with a magnetic door sensor, this entryway light controller automatically detects the status of the gate or the entryway barrier to control the entryway light. Moreover, day/night status is monitored by a photosensor so […]
Constant Current (CC) Adapter for a Constant Voltage (CV) Stepdown Voltage Regulator
I have a great collection of cheapo Chinese DC-DC stepdown converter modules that I use for everyday purposes in my lab. Most are the good old but still popular LM2596S modules available under $1 from […]
Little Electronic Fuse
After some successful experiments recently, I was convinced that measuring current with a WCS series current sensor is easy and straightforward. It’s a cakewalk – after connecting the WCS current sensor’s pins in series with […]
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 […]