Sniffing GSM traffic with HackRF.

While my friend and colleague Simone was visiting our ZIMPERIUM – Enterprise Mobile Security TLV office, we got our hands on HackRF and hacked together the unguarded boarders of Radio Frequencies. Simone had the great patience to try and explain me the boring world of complex numbers and friends (more on that here), but my dyslexia […]

Ziggy’s Embedded BTS

It started as a small challenge. “I challenge you to make a Base-Station image for embedded devices” dared me my friend Simone, and I decided he is right and it’s time for a BladeRF Base-station image targeting the armhf architecture. While googling on the subject, I found others struggling with same problems I did, and I also […]

From Bochs to chroot

I used Bochs at 2004 for some projects of mine since that was the only way to emulate a complete PC back in the days. The performance was horrible, hardly usable, since all CPU & BIOS commands were emulated in software. Even on the best of hardware, performance was lacking. Fast forward a few years, […]

Arduino keypad with 1 Analog pin

Here is my circuit design for Arduino keypad, using only 1 analog pin (instead of 7 serial pins), 6 resistors (can be reduced to 5) and 1 capacitor: And now for the full story: I decided it’s time to add a keypad to my Arduino playground. Usually, those simple keypads come with 7 pins (actually 9, […]

My Robotics Adventures.

So, I bought myself this Robotic Arm Kit (similar to this) from China, since I thought it will be a nice thing to play with. Unfortunately, I didn’t notice the ‘Kit’ part in the name, and surely enough, the parts arrived disassembled. Alas – they also arrived without any documentation. After some googling, I found […]