Browsing the archives for the AVR tag

Marvin: Binary Counter using a One-Wire Master

Currently jfe and me are trying to implement an (in-software) One-Wire slave on an Atmel AVR 8-bit MCU. On our way to that goal, we’re also implementing a small one-wire master, which performs several tests on the slave device.

As we do not have a DSO, we have to use a analog oscilloscope to have a [...]

Marvin: 27 MHz HID Sniffing

remote-exploit.org has released a solution for sniffing 27 MHz HID-Devices, for example Microsoft or Logitech wireless keyboards. Keykeriki consists basically of an Texas Instruments TRF7900 which is controlled by an ATMega MCU.
Now should be the time to throw out any wireless input device with an unknown or unsecure channel encryption.