BLUETOOTH HOW IT WORK!
Hi Everyone .
I have short time to find how blue tooth working.And I know it used radio tech frequency hopping spread spectrum to transmission /receiver data. I have some question , i don't understand and I need someone explain for me.
the first it relate channel work.USA used 79 channel in frequency band ,some where used 23 channel such as Japan,Spain...... this mean when i make product for us i must use blue tooth module from maker support frequency band us,when i make product for japan i must use blue tooth module form maker support frequency band japan. i don't known my thinking it is true or false ?.
The second :so how to set channel to transmission/receiver in 79 channel or 23 channel in module blue tooth from microchip . i used a blue tooth audio BM64.
Thank you so much.