Electronics Archive

Nokia N900 – pentester’s multitool in your pocket

I was very patient and waited for this device for some time. Despite of time flowing without mercy – Nokia N900 still does the job. It’s potential is amazing, believe me. N900 is run by Maemo 5 OS which is based on Debian Linux distro. Wide variety of packages dedicated for N900 or ARM architecture

FRITZ!Box 7490 – external antennas

In previous article I shared my experience about FRITZ!Box 7490 router. I tried to show it’s pros and cons as well as some ideas to exploit its full potential. One of the most annoying flaws of this device is poor wireless coverage. Due to small-sized internal antenna it is almost impossible to get full coverage

FRITZ!Box 7490 – router which needs a little bit of your attention

Router is just a device which lonely takes its place on a shelf under a film of a dust. However some routers perform better, other worse. Let’s take a look at AVM – FRITZ!Box 7490 device. I need to say this – the look of this device hits the spot. And I mean balls. Its

VoIP Gateways – issues of modern telephony

Cisco / Linksys series – PAP2T, SPA2102, PAP112, SPA122 are propably most widely used around the world for VoIP communication. Most common issues related to VoIP Gateways are unreachable phone in incoming calls, DTMF not passing through or not working properly with alarm/elevator systems. Problem 1: VoIP gateway not reachable on incoming call. Mostly this

Jammer 433MHz – Arduino Mini Pro

Modules which allows you to communicate at 433MHz band are extremely cheap. Transceiver set you can get for under a 1$. Adding them up with Arduino Mini Pro (~4$) you can create wireless sensors for humidity, temperature and present them in any form you like. While working with those transceivers I wanted to check precisely