ESP32 Forum

Hie,
I am working on ESP32 bluetooth part. My operating frequency is 160 MHz and at this frequency everything works fine. But when I lower this frequency bluetooth stops operating. I want to know what is the minimum frequency at which bluetooth works successfully. Is there any way to change frequency source to bluetooth core and make it lower in value and at the same time bluetooth works successfully.

Please help me with this.

Regards
Deepak Patel.

From memory, BT should work at 80MHz as the lower boundary; have you tried this?

ESP_Sprite wrote: ↑

Wed Oct 11, 2017 10:05 am

From memory, BT should work at 80MHz as the lower boundary; have you tried this?

It seems to work OK at 80MHz. At 40 it doesn't.
Is there any way to decrease power consumption while just waiting (not connected yet) bluetooth connection from client?
I found light sleep mode which works with active WiFi and can wake up when some wi-fi activity happens, but nothing like that regarding bluetooth.

In this way we should waste about 30mA on just waiting anybody to connect with us via bluetooth.