Bluetooth advertisement interval time

[yongyuan wang]

Hi,
I am working on a project to capture the Bluetooth waveform sent from the Lopy4. I noticed that the advertisement interval time can be set manually

This article says the fixed interval can be chosen from 20ms to 10.24s. However, I did not see any information about this in the documentation

Could anyone tell me what the Bluetooth advertisement time interval is by default in Lopy4

[Antonis Gotsis]

@yongyuan-wang You should be right, so its between 32 and 64 msec

[yongyuan wang]

@Antonis-Gotsis Thank you. I did not notice that before. However, I am curious why it is 20ms. I think 0x means It is hexadecimal? (adv_int_min=0x20)

[Antonis Gotsis]

@yongyuan-wang As mentioned in the set_advertisement documentation is somewhere in between 20 (adv_int_min) and 40 msec (adv_int_max)