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 […]
Arduino Portable Ultrasonic Distance Meter
After a little bit of research, I discovered that building a portable ultrasonic distance meter using Arduino was indeed a very simple task. I was surprised to discover that integrating a tiny OLED display into […]
Arduino Light up Coaster Ideas (v1)
Now is the time to make something that lights up! As promised in one of my previous posts, I’m sharing some crude design ideas for making your own coaster that wakes up as it listens […]
Raspberry Pi Pico – PWM Primer
Sometimes ago I wrote an introduction to Raspberry Pi Pico. Today I will show how to exploit its pulse width modulation features. However, if you want to do some serious projects starting from this blog […]
Raspberry Pi Pico – Quick Start
Raspberry Pi Pico is a microcontroller board from the Raspberry Pi foundation. It is an exciting new microcontroller board launched on January 21, 2021, based on the RP2040 micro-controller by the Raspberry Pi Foundation sporting […]
Arduino & Square Wave Thoughts
The theory behind generating square wave is almost a trivial thing! A square wave is a signal that changes between high and low state where the primary requirement is that the on-time (high state) and […]
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. […]