As the tittle, how can I select frequency for radio frequency. I use nrf52 MCU.
As the tittle, how can I select frequency for radio frequency. I use nrf52 MCU.
Jesus NO! BLE has defined behavior on radio channels on PHY and LL layers. This is managed by stack (e.g. Nordic Soft Device if you use that). In advertising/broadcasting stage you can only say which from ADV channels you want to use or not. During connection all remaining channels are used according to hopping sequence set by Master/Central during CONNECT_REQ. Seriously read some more sources about BLE if you want to use it.
Your assumptions about how BLE works are probably wrong. Back to study. BLE uses hopping sequence where it typically uses full spectrum of 37 channels. That allows surprising scalability to thousands of simultaneous connections at the same place and time with minimum collisions.
The first, I want to say "Sorry" for my silly question. I didn't have any experience about BLE ago. Can you give me some document which you think that necessary for me. I am going to spend all my time to study. Thanks brother :)
No problem, Wikipedia and Google are your friends. There are many books and sides about BLE, every second should cover the basics.
yes. I was search GG. but there are a lot document. I hope that you can recommend some link for me.