If you are mainly involved in designing or repairing digital devices, a logic analyzer is more useful than an oscilloscope for tracing signal through circuits. However, does this mean you should rush out and buy a logic analyzer? The instruments from the leading manufacturers are too expensive for home use or startup businesses, and the […]
Review: ScanaQuad – a super-small logic analyzer Continue Reading
Light propagating in a layer of scattering nanoparticles, shows the principles of diffusion – like tea particles in hot water. The deeper light is penetrating into the layer, the lower the energy density. Scientists of University of Twente’s Complex Photonics Group, however, manage to turn this falling diffusion curve into a rising one, by manipulating
A PC application that talks to the Walabot PRO, Arduino and NeoPixels! Story Welcome to my Walabot project I will split this project in different parts. 1. Get to know the Walabot and a setup. This includes data readout and send it to an Arduino. 2. Gather the data that is needed for the calculations
Build a Automatic Cool Blue Lighting System using Arduino, that will turn on when you walk into the room and turn off when you walk out. Story Let us do something fun during this weekend shall we? Something less costly and easy for everyone to do. This time, why don’t we play with lights? Let
LAKE WALES Fla.—Graphene is easily grown with chemical vapor deposition (CVD) on copper foil, but a simple way of etching out the necessary circuit patterns and transferring them to a non-metallic substrate has eluded engineers. Now researchers at the University of Illinois (Urbana-Champaign) claim to have a one-step room temperature process for quickly patterning and
About Burglars Recently the Spiegel published an article about burglars in Germany: Burglars prefer the dark months. In december the insurances report 3 times more housebreakings than in july. The police reports that it is very difficult to find the delinquents. Mostly there are no witnesses and no traces. Only in 2,6% of the housebreakings
DIY electronic RFID Door Lock with Battery Backup Continue Reading
Introduction Besides looking damned good on an otherwise bland and ordinary desk, this project is about more than just being attention grabbing eye candy. It’s about demonstrating a small portion of our single board computer capabilities by hooking up a color sensor, RGB light strip, and enclosing it in a nice looking wooden enclosure. We’re
The Aurora Boxealis – A Color Sensing and Mirroring Project Continue Reading
In this post I will document an OCXO upgrade board I designed for the Fluke/Philips PM66xx line of frequency counters. Introduction A few months ago I purchased a Philips PM6674 frequency counter on eBay. It’s an older 9 digit counter with two channels that has a maximum input frequency of 550MHz. The design feels dated
Fluke/Philips PM66xx Frequency Counter OCXO Upgrade Continue Reading
This one is an interesting one, it’s something we’ve been looking at for a while and figuring out how to solve it. We have sets of speakers and projectors and the users keep losing the remotes, or misplaced/stolen. Usually this wouldn’t be a problem, we’ll just contact the supplier or manufacturer and order replacements. Except
ESP8266 is a great thing for starting to Wifi And IOT It is also cheap and be used for making cool projects connected to the Internet .Learn how to make a simple IOT Project with it .The ESP8266 WiFi Module is a self contained SOC with integrated TCP/IP protocol stack that can give any microcontroller
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