Author Archive

Null headset adapter for smartphone

There has been questions like those on 2600 magazine Facebook group: How do you prevent your phone from being used as a bug so malicious individuals can spy on you? What’s the best way to temporarily block/disable the microphones in an iPhone. Does anyone know of a phone case with a built-in shutter? The idea

2in1 Wireless and Wired Microphone

I got a very cheap wired/wireless mic  from Wish.com. I plan was to have a cheap “disposable” microphone for uses where I don’t want risking the more expensive microphone. Basically the product looks OK. The construction is plastic, but till feels acceptable for the price (less than 10 Euros on sale). If I get this

Creators of modern rechargeable batteries share Nobel prize

https://techcrunch.com/2019/10/09/creators-of-modern-rechargeable-batteries-share-nobel-prize/ Nice that the Nobel prize created by inventor who made dynamite is now given to inventors who invented technology that has put small potential explosives to pocket of almost everybody in developed countries.

Ecodesign and right to repair in Europe

Hackaday article Europeans Now Have The Right To Repair – And That Means The Rest Of Us Probably Will Too talks about an important topic: right to repair. The right to repair what we own has been a hot topic for many years. Many modern devices seem to be surprisingly difficult to fix. In many

Hacked USB cables with wireless hacker access

There have been many news on a hacked Lightning cables that allow someone to take over a computer as soon as they are plugged into a Mac or PC. There has also been USB cables with hidden Wi-fi.. How about a DIY hack on this? The latest development in the ESP32 world comes is a

Cyber security news October 2019

This posting is here to collect cyber security news in October 2019. I post links to security vulnerability news to comments of this article. If you are interested in cyber security trends, read my Cyber security trends 2019 posting. You are also free to post related links.  

Battery for NanoVNA

I had earlier written about NanoVNA and how the device I got came without battery. The device supports rechargeable LiPo batteries, but the batteries are not included on the model I bought because of the safety of international transportation. I also liked to have the LiPo battery installed on my device. The device has battery

Testing NanoVNA

NanoVNA is very tiny handheld Vector Network Analyzer (VNA). A vector network analyzer (VNA) is an instrument that can be used to measure antenna or coax parameters such as SWR, impedance and loss. It can also be used to characterize and tune filters. It is a very useful tool to have if you are building