Posted June 5, 2015 by Chris

"We are often asked on discussion boards, about conflicts between IRremote or IRLib and other Arduino Libraries. In this post, we present a sketch for ‘Simple Infrared PWM on Arduino’. This is the first part in a 3 part series of posts"

Posted June 3, 2015 by Chris

"Holding the button in is a kind of ‘diagnostics’ mode which shows more information. Under normal operation it simply shows the vacuum pressure."

Posted June 2, 2015 by Chris

"The solder matters, it is an undisputable fact confirmed daily in a development and production of electronics. Hand soldering of prototypes, automated machine soldering, soldering of small SMT components or on the in contrast soldering of big joints of massive connectors, rework, all that wants a solder optimized for a given usage."

Posted May 4, 2015 by Chris

"A ballistic chronograph is used to detect the speed of a projectile shot through a sensor port. The simplest type of chronograph design is based on finding the average speed of the projectile between two ports. This is as easy as dividing the distance between the two sensor ports with time taken to travel between the ports."

Posted May 2, 2015 by Chris

"PCB Rax is an easy to use, versatile circuit board holder for repair, prototyping, and assembly that can hold nearly any shape of circuit board. Sure there are other circuit board holders on the market, but they don’t hold odd shaped boards, and they don’t allow you to easily move them around. "

Posted February 25, 2015 by Chris

"This is an experimental work to monitor a spectrum pattern in radio band, and is a continuous project from Audio Spectrum Monitor. To analyze the spectrum of an input signal, I chose an Atmel AVR microcontroller that used in the Audio Spectrum Monitor to process FFT."

Posted February 2, 2015 by Chris

"The Final Key is a piece technology that solves a problem. The Final Key is a hardware password manager with encryption and focus on combining portability, compatibility security and easy of use. It is a hobbyproject of mine and not under any commercial distribution, you are also free to build your own clones if you like the idea."

Posted January 30, 2015 by Chris

"…I thought I should experiment with etching first….Etching removes all exposed copper from the board. So, before etching, you must somehow cover and protect the parts you want to keep. You can draw the tracks, using a permanent marker. It is also common to laser-print them on paper, and then iron on the toner. The photosensitive boards are coated with a special layer, that dissolves in the developer, when previously exposed to UV light…"

Posted January 24, 2015 by Chris

"Small tutorial on Computer ATX Power Supplies. How to use them, how to connect them in series, in parallel. What is 12V rails? Is it possible to connect 12V rails together? ATX connector wiring explained."

Posted January 10, 2015 by Chris

"This easy-to-build electronic device allows you to take a screenshot of your calculator display and show it on an NTSC or PAL television set. Unlike the TI-Presenter this does not require a special calculator or a USB adaptor; it uses the 2.5mm link port."