Here is some interesting information on leaking information from air-gapped computers. Most methods shown here use computer power supply to leak some pieces of information. But there are also some other methods shown. A researcher from Israel described a new method to covertly steal highly sensitive data from air-gapped computers using power supply units. Dubbed →
There is a quite new electrical safety standard you need to know: IEC 62368-1. If you are working with electronics design, you need to notify this new standard. IEC 62368 is an entirely new product safety concept: it isn’t a merger of existing standards, but it does cover the older standards IEC 60065 and IEC →
I have made earlier a post on electrical car charging cables and charging stations technology. This s a continuation posting related to it. This posting links to DIY projects related to electrical vehicle charging cables. Those cables are quite expensive, so some DIY persons have tried to make their own versions. Some even claims have →
There is a growing interest and investment in electric vehicles infrastructure. To change those electric vehicles here are many different options how this can be done – with different benefits and disadvantages. The charging time depends on the battery capacity and the charging power. The charging power depends on the power available from the power →
While switching to LED lighting certainly helps reduce power consumption, we can do more. Each conventional mains powered LED bulb has its own AC/DC power supply, which is needed for bulbs to be compatible with AC wiring and lighting fixtures with sockets designed 100 years ago. Having individual power supplies adds cost and decreases efficiency →
I had some problem with breakers tripping. Then the source of the problem turned to be this extension cord made by Bachmann. Sparking and blackening outside and also inside It seems that child protection mechanism failed and part of it was stuck between contact bars. This then caused sparking on contacts, which caused blackening. End →
https://www.electricaltechnology.org/2018/08/electrical-shock-hazards-its-effects-on-human-body.html When working with or nearby electrical installations an electrical shock, arc flash or arc blast can occur and a current can go through the body, due to the following situations: Direct contact with live parts of the installation (exposure to live parts) Contact with parts that normally are not live, but as a consequence →
In Greece the standard mains power voltage is 230 V and frequency is 50 Hz. The power plugs and sockets are of type C and F. This is same that are used in Finland, so I did not need any traver adapters (that often have questionable safety). This is interesting wiring at hotel – proper →
An electrical outlet tester, receptacle tester or socket tester is a device used to verify that an electrical wall outlet is connected correctly. It confirms continuity and polarity of the electrical connections. The outlet tester is designed to check that each contact in the outlet is connected to the proper wire in the building’s wiring. →
Electrical power grid hacking meets cyber war politics talk? Or just fear-mongering and fake news? What would happen if someone switches off the power fron your country? Russian hackers behind ‘world’s most murderous malware’ probing U.S. power grid https://www.digitaltrends.com/cool-tech/russian-hackers-us-power-grid/?amp Kremlin Warns of Cyberwar After Report of U.S. Hacking Into Russian Power Grid https://www.nytimes.com/2019/06/17/world/europe/russia-us-cyberwar-grid.html →