Analog Audio Visualizer LEDs
I prepared this post in a hurry to help you to quickly design and build an analog audio visualizer using common light-emitting diodes. It’s not the first time I built a simple analog audio visualizer […]
Arduino Audio – Refined Primer
At this time, we’re going to generate various sounds using an Arduino microcontroller! We’ll initially make sound using a regular piezoelectric buzzer which makes use of a material that has piezoelectric properties. When a material […]
12V SLA Battery Charger Guide
Recently, I had the opportunity to test the internal electronics of several popular Router UPS devices. Honestly, most of them are useless products and will make the router sick within days. Oh, that’s another story, […]
I2C LED Knight Rider
I have already posted two Knight Rider and Larsen Scanner LED projects online. You can go through these to access them Arduino Knight Rider Arduino Larson Scanner. Or you can buy yourself an inexpensive Knight […]
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 […]
Foldback Current Limiting – Little Secrets
Wikipedia says Current Limiting is the practice of imposing a limit on the current that may be delivered to a load to protect the circuit generating or transmitting the current from harmful effects due to […]
USB-C Power Delivery (USB-C PD) – Quick Explainer
USB-C Power Delivery (PD) is a standard that supports up to 100W of power! My first attempt in using a USB-C power adapter as a power source for my breadboard projects was met with great […]
Raspberry Pi Pico Xmas Pixels
Happy Xmas is near, so it’s time to build your own festive lights to surprise your neighbors. In this post, you will learn how to make Christmas special LED pixels with Raspberry Pi Pico! First […]