ESP32 Forum

Hi

I've read in a few places that the BLE spec requires a packet to be retransmitted if its checksum calculated at the receiver does not match the checksum sent by the transmitter i.e. error detection.

I want to confirm whether this is true, and that the ESP32 BLE stack using Bluedroid implements this automatically, or if this functionality must be implemented by the programmer.

Cheers

CRC check for over the air transmitted packets and re-transmission as required is done BLE Link Layer firmware as per BLE specifications.