IR analysing on Smart TVs

This project is aimed to study infrared communitations, focused on those between TV controls and TVs.
Within the project, two Arduino libraries are used:

1. IRLremote Arduino library developed by Nico Hood.

Available here: https://github.com/NicoHood/IRLremote

2. IRremote Arduino library from Ken Shirriff y Rafi Khan.

Available here: https://github.com/z3t0/Arduino-IRremote

There are two scripts that read, decode and display IR signals:

1. rcv_IRLremote: this script uses IRLremote Arduino library (above-mentioned).

2. rcv_IRremote: this script uses IRremote Arduino library (above-mentioined).

There is also one more third script, quite different from previous two ones:

3. matrix_guess:

Third script named matrix_guess treats to simulate one attack to a Smart TV.
Imagine a user seated in front of his LG SmartTV typing on his TV control his Netflix password.
QWERTY alphanumeric Netflix on-screen keyboard is supposed to perform this trial:

Script catches IR signals from UP, DOWN, LEFT, RIGHT and OK keys on TV control and treats to guess user data using that Netflix keyboard.