hashDecode.ino Example sketch for IRLib2
Instead of decoding using a standard encoding scheme (e.g. Sony, NEC, RC5), the code is hashed to a 32-bit value. This should produce a unique 32-bit number however that number cannot be used to retransmit the same code. This is just a quick and dirty way to detect a unique code for controlling a device when you don't really care what protocol or values are being sent.
This is an almost exact copy of the libary example original adjusted for the Circuit Playground Express: