🧵 9 Lesser-known features of Flipper Zero:

Flipper Zero is normally known for RFID/NFC hacking, sub-GHZ signal hacking, and things like infrared. But it can do much more thanks to its open source nature, third party firmwares, and extensibility (using add-on modules)
Here's 9 things you can do with it:

1/11 2FA: Short for 2-factor authentication. It can act as a hardware 2FA. Similar to YubiKey.

Disclaimer: I'm not saying you should use it as 2FA (I use YubiKey personally and also at work) however it can act as hardware 2FA (U2F over USB)

2/11

🧵 How does an off-the-shelf car GPS jammer work?
A short thread.

There are many ways to perform radio signal jamming (and also detect or protect against it), however the most basic concept is this: a jammer saturates the input of the target's receiver system by noise, in a way that it can't receive/detect/decode the desired radio signal anymore. It reduces the signal to noise ratio.
It's like if you want to listen to someone, but I shout at you in close proximity, so you can't hear that person. (I hope experts don't shout at me for this simplistic example)
There are many legal and illegal use cases for a jammer: military, law enforcement, car theft, protection against tracking etc.

1/4 The GPS jammer in this thread, is sold on Amazon and AliExpress under different titles, but it's mainly to be used in cars (there are also more powerful handheld models covering multiple frequencies with higher power, to jam mobile signals)
Please note that running a jammer is illegal in many countries. This thread serves only an educational purpose.
For this thread, I was lucky to get some pictures and measurements done by @RFAmirhosein in his lab.
Here's how it looks inside.
It has 4 main components we're interested in. I have marked them:
1. 7805: a voltage regulator IC to convert car's lighter voltage (12V) to 5V.
2. 555: timer IC generating the modulation signal (this is probably the most famous IC of all time)
3. Murata MQK301-1528: a VCO (oscillator) for the frequencies 1466-1590MHZ (GPS L1 frequency is 1575MHZ)
4. The RF amplifier IC, amplifying the generated signal, before sending it to the antenna.

2/4

🧵 What are the most compact tools I carry when traveling or when going absolutely light to do electronics test or hardware/physical pen test?

Disclaimer: it's only 9 tools out of many. It's not a full list. I just love these small gadgets for their sheer size/weight.

1/10 1. Pokit Pro: portable oscilloscope/multimeter/logger. Needs a phone to work (doesn't have display). Uses Bluetooth to connect.
Very light, software is updated frequently, accurate enough for most use cases.
Here I show it measuring a 5V calibrated DC voltage.

2/10

🧵 How to organize your electronics desk and save space? 9 tips.

Disclaimer: my profession is first and foremost software. Hardware is my hobby, so take these with a grain of salt.

This is my workshop. It's a separate desk from where I do my 9-5 job (with a laptop and 2 monitors)
These are the lessons I have learnt in the past few years while upgrading and optimizing my desk space:

1. It's a never ending process. You will always come up with ideas to improve the desk space usage, tool placement, etc. So don't try to make it perfect. Good enough for now is better than perfect in an imaginary future.

1/9 2. There is no correct way to do things. Sort your tools and place them on the desk (or not) based on your work's requirements. Someone working on FPGA or embedded systems has much different requirements than someone repairing RF equipment, than someone building robots.
2/9

I always optimize space on my electronics and hardware security workbench by using small and portable tools.

Here are some that I use that didn’t exist a few years ago, and are much smaller and/or cheaper than their traditional alternatives;

#hamradio
#electronics
#hwhacking
🧵 FlipperZero is an open source portable multi-tool: NFC/RFID reader/emulator, IR transceiver, sub-GHZ transceiver (CC1101 based) , SPI/UART tool, and much more.
It can even function as a U2F token!
More info here: flipperzero.one
@flipper_zero
#flipperzero