Tricolor Temperature Display
Quite recently I got a stainless-steel vacuum flask with a digital temperature readout integrated on its top lid. When I touch the top of the lid it simply displays the inside temperature of the container […]
Poor man’s Blow Switch
You may often see the musical instrument Melodica on stage shows. From Wikipedia (https://en.wikipedia.org/wiki/Melodica) melodica is a small, light, and portable free-reed instrument similar to the pump organ and harmonica. It has a musical keyboard […]
Home Theatre & A/V Cabinet Cooling Fan Controller
Shoving all your home theatre device into a single cabinet makes sense when you want to keep your living room neat and tidy. But there’s just one (usually overlooked) problem – overheating. Yes, with a […]
Arduino LED Signal Wand Light
This is an update to an old project of mine that was printed almost a decade ago! Here is the link to that little nostalgic project https://www.electronicsforu.com/electronics-projects/portable-signal-wand At this point, I’m using a microcontroller as […]
Backpack LED Patch (v2)
After posting the Backpack NeoPixel LED Safety Light project (https://www.codrey.com/arduino-projects/backpack-neopixel-led-safety-light/), I received a lot of requests to publish another do it yourself project based on regular light-emitting diodes, instead of using NeoPixel LEDs. So, I […]
Sound Reactive Pixel LEDs
This little post covers the construction details of sound reactive pixels which is pretty enjoyable to build and watch. You can embed it in a lot of things, for example, think about gluing it in […]
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 […]
Arduino Battery Status Monitor v1
When you want to build a standalone Arduino project, the first thing to consider is how to power it once the setup is disconnected from the computer’s USB port. First off, it’s good to note […]
Arduino in Synth World
This post is just an introduction to how Arduino can be used with synthesizers. So, lower your expectations first, this is not ready-to-go do-it-yourself project documentation. Still interested? OK, get ready to move on! What’s […]