by Julien Happich @ edn-europe.com Published in Applied Physics Letters under the title "Sub-wavelength InAs quantum dot micro-disk lasers epitaxially grown on exact Si (001) substrates", the findings from an international team of researchers opens a new route to CMOS-compatible...

lucadentella.it shows us how to create a Nixie tube footprint by placing the pads in a circular way. I’m working with Eagle to prepare a PCB for a Nixie clock. I wasn’t able to find a library for the Nixie I chose so I had to create it from scratch. Eagle – Create Nixie tube...

Luca Dentella writes: During the development of my electronic projects, I sometimes need to develop a graphical user interface (GUI) that talks using serial communication with the devices I create. In the past, I usually chose to develop those interfaces in C# and using the .Net...

Dark Sensitive Lamp controller project switches a load connected to it when light falling on LDR (Light Dependent Resistor)  goes bellow set point.  It could be used as an automatic street light application. The project is based on Triac and doesn’t requires additional DC supply,...

RomanBlack.com explains in details how to use 433/315Mhz modules for serial communication. These cheap RF modules usually come in a pair, with one transmitter and one receiver. A pair can be bought on ebay for as cheap as $4, and even as cheap as $2 a pair if you buy 10...

The LTM8053 is a 40VIN, 3.5A (continuous) step-down μModule regulator. Included in the package are the switching controller, power switches, inductor, and all support components. Operating over an input voltage range of 3.4V to 40V, the LTM8053 supports an output voltage range of...

Michael Dunn discuss about a circuit that smooths ripple and noise but doesn't regulates the output. A well known power supply circuit is the capacitance multiplier. It doesn't regulate, but instead reduces ripple & noise while the output tracks at some fraction of the input...

Save time by re-using existing packages and symbols . There are thousands of devices in the 'default' library that comes with EagleCAD but whaddyaknow, the exact package/device you need isn't always going to be one of those thousands. However, instead of making a brand new device...