Самодельный джаммер Bluetooth и Wi-Fi в радиусе 30 метров

В некоторых условиях в целях безопасности нельзя допустить подключение устройств по беспроводной связи. Например, на предприятиях, где высок риск утечки информации. Или чтобы гарантированно погасить следящие маячки типа Airtag вокруг себя. В таких ситуациях по специальному разрешению соответствующих органов используют подавители радиосигналов, в том числе Bluetooth/BLE и Wi-Fi. В образовательном проекте ESP32-BlueJammer на Github можно ознакомиться с устройством, которое гасит любой полезный сигнал в диапазоне около 2,4 ГГц с помощью генерации шума и бесполезных пакетов (DoS-атака). Примечание. Самовольное подавление радиосигнала незаконно в некоторых странах, поэтому схема изготовления устройства распространяется исключительно в образовательных целях.

https://habr.com/ru/companies/globalsign/articles/981328/

#Bluetooth #WiFi_джаммер #подавление_сигнала #ESP32 #Bluejacking #Bluesnarfing #MITM #следящие_маячки #Airtag #nRF24

Irgendwo hab ich in einem Tröt den Link zu einem Tutorial mit #Arduino und #nRF24 #nRF24L01geklickt. Aber nicht mehr wiedergefunden. Daher gibt's den Link hier erneut:

https://lastminuteengineers.com/nrf24l01-arduino-wireless-communication/

#todo #diy

This week on The Amp Hour we discussed relativistic time differences, building with #riscv components (the #ch32v003), RF modules (#nrf24), silly consumer hardware, underwater electronics, and more!

https://theamphour.com/658-uncle-als-eating-garbage-again/

AI is so useful to have let me generate this groundbreaking image. Thanks Midjourney.

This is a sneak peek at some of the #Startups that will be joining #Microsoft for Startups at #NRF24 in #NYC https://www.linkedin.com/posts/shishs_startups-nrf24-nyc-activity-7132083079011069952-6gwv?utm_source=share&utm_medium=member_desktop

#NRF #NRF2024 #Retail #RetailTech #msft4startups #innovation

An RF Remote Is No Match For A Logic Analyser!

The Neewer NL660-2.4 Video Keylight has a handy remote control, which for [Tom Clement] has a major flaw in that it can't restore the light to the state it had during its last power-on. He's thus taken the trouble to reverse engineer it and create his own remote using a suitably-equipped Arduino clone.

The write-up is a step through primer for the would-be RF remote hacker, identifying the brains as an STM8 and the radio as an NRF24 clone before attempting to dump the firmware of the STM8. As might be expected the STM is protected, which only leaves the option of sniffing the connection between the two chips. The SPI pins are duly probed with a logic analyser, and the codes used by Neweer are extracted. As luck would have it there is a handy board called the RF Nano which is an Arduino Nano and an NRF24 in an Arduino Nano form factor, so a proof of concept remote could be written on an all-in-one module. You can find the result as a GitHub Gist, should you be curious.

We've seen Tom a few times before, particularly in his European BadgeLife work, as part of which he's put a lot of effort into bringing browser-based WebUSB and WebSerial development to his work.

#techhacks #nrf24 #reverseengineering #stm8