I have something with the weather. I always like to know how warm or cold it is, how much rain has fallen, how hard the wind blows and from what direction,… and so there are lots of sensors around our house to keep me up to date. These sensors give only a limited range of […]
LED wind indicator Read More »
This little device shows you the CPU-load, how much physical and virtual memory is used. It shows this data per 10% on 3 ledbars. To do so it uses a VCP (Virtual COM Port), so that it can be connected to a PC via a USB connection to receive the data. Collecting the data and
USB CPU and Memory monitor Read More »
This is an instructable for making your own PWM (Pulse Width Modulated) flyback driver! The design is relatively simple and easy to make if you have basic electronic skills. In fact, you don’t even have to know how a transistor or a MOSFET works to make this. You only have to follow the instructions. What
Simple PWM Flyback driver tutorial Read More »
What follows are instructions for constructing a battery powered portable VU meter, as well as detailed instructions for the construction of the PCB needed to complete this project. It was designed to illuminate from 0-10 LEDs depending on ambient sound levels. I designed it to be attached to a wristband, clothing, or a necklace if
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My obsession of this year is full-color LED. I have made Aurora 9×18 as a result. As much as I love the scale of Aurora 9×18, I also wanted to have something smaller, perhaps something that can go on a costume. Here’s Aurora mini 18. It has 18 full-color/RGB LEDs on a smallest possible circle.
One of the biggest challenges faced by solid-state lighting designers is reliability. Electrical and thermal conditions are two major factors affecting device life and lighting output and, while long life is a key benefit of LEDs compared to incandescent and fluorescent light sources, all bets are off if the LEDs exceed their temperature ratings. Thermal
The Reliability of LED Lighting Fixtures Read More »
This article describes the development of touch sensing and switching techniques capacitive sensing technology. Products cited include both stand-alone capacitive sensing controller ICs and microcontrollers (MCUs) that include touch sensing as a peripheral function. Capacitive touch sensing has experienced explosive growth to become the default human interface for several classes of consumer product. Users of
Capacitive Touch Sensing Moves from Exotic to Everyday Read More »
This project is named “Engadino” after Engadin – ski resort in Switzerland. The reason for this is that I live in Switzerland, I like skiing and the name is easy to remember and pronounce. By itself the project is a clone of “Pinguino“. “Pinguino is an Arduino-like electronics prototyping platform. It supports different 8- and 32-bit ©Microchip
The purpose of the project was to create an external USB audio card, which could be able to: 1) serve as usual external USB audio card with headphone/line output and audio line input 2) can transmit the digital audio data at relatively long distance (20m -100m) 3) can receive and process the digital audio data
External USB audio card with optical S/PDIF POF interface Read More »
If you have embarked upon electronics projects in the past, there is a good chance you have already encountered this common component and soldered into your circuit without second thought. Diodes are valuable in electronics and serve a variety of purposes, which will be highlighted in upcoming steps. First, what is a diode? A diode is a
