Some programs to sniff what's going on the lightning cable with an AVR board (Arduino)
C Objective-C
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This project is a collection of programs that help to sniff the Lightning cable or manipulate what is transmitted.

Each folder is one program:

  • acc_id_sniff: Sniff the ACC_ID pin.
  • acc_id_spoof: Use your Arduino to identify as a genuine lightning controller.
  • serial_sniff: Sniff the UART bus of a serial accessory using an Arduino.
  • serial_mitm: Let a MFI accessory authenticates to the iDevice and then hijack the serial bus.
  • ios_app: A simple iOS app to send abritary text to an external accessory and see the response.

Details about how you can use these programs are to be found in Freedelity's blog