There are many Arduino-compatible microcontroller boards nowadays. The Ruggeduino is a ruggedized Arduino-compatible microcontroller board. Features include overcurrent and overvoltage protection on all I/O pins and 5V/3.3V outputs, ESD protection on all I/O pins and USB port, total microcontroller overcurrent protection, and operation at up to 24V. There are some things a regular Arduino will →
Researchers have studied keystroke inference based on side channels, such as sound, electromagnetic wave, and timing. Since these attacks exploit characteristics of physical keyboards, they become ineffective on smartphones with soft keyboards. Attacks using sensors on smartphone raises the awareness of privacy attacks on smartphone sensors. Besides the obvious privacy concern over the GPS sensor, →
Many modern cellular phone use USB plug for charging and many places offer nowadays charging possibility. But plugging your phone into an untrusted USB cable is, indeed, a security risk according to Juicejacking – an emergency phone charge can be a security risk article. The article fortunately tells that it’s easy to avoid the risk →
Why modern high tech electronics fail? Too often the reason for that is electrolytic capacitor failure. I have had a quite high number of electronics that has failed by this reason after few years of service. I have had a quite number of devices failed by capacitor: PC motherboard, PC graphics card, set-top-box, DVD player. →
I liked the Firefox option to save tabs on exit. Every time I exited Firefox 3.x, I simply click on the Save and Quit button when I am prompted “Do you want Firefox to save your tabs for the next time it starts?”. The next time I launch Firefox, all tabs are automatically opened. When →
I visited Denmark in summer. This is normal grounded mains outlet I saw there. It looks just like a smiling face. →
August 12 marks the 30th anniversary of the IBM Personal Computer. IBM released it’s first PC August 12 1981. One of the designers of PC Mark Dean blog that IBM leads the way in the post PC era. Note that IBM decided to leave the personal computer business in 2005, selling our PC division to →
It seems that there is a trend to convert video systems over from an old, all-analog system to a modern, IP-based system with cameras powered over the Ethernet line using PoE (Power over Ethernet). Weird AC Voltages in a PoE Camera System post at Control Geek Blog talks about an interesting PoE (Power over Ethernet) →
I have participated in Free Product Road Testing program by Farnell. Farnell indentified my blog to road test some of their products. I was willing to participate, because what’s more fun than free high tech products to test. The first product i got was Arduino UNO. Arduino Uno is a a microcontroller board based on →