I don't understand this enableCrc :


I searched everywhere but I didn't find informations about what it does... If I activate this Crc, what happens if it detects an error ??

Thank you!

Don't bother looking "everywhere".

The two very most important sources of information are the radio chip data sheet and the library code and comments.

ok! thank you !

It rather depends on the information that @jremington suggested you supply.

But in general if your using CRC when transmitting a packet of data then a receiver may or may not reject a packet if it detects a CRC error.

For LoRa devices enabling CRC is often the default for a library.

thank you!