ble modem sleep

[johnconn]

So I've been messing around with the modem sleep for ble, and taking measurements with a little test application where the my phone connects to the esp32 and every few seconds the esp sends a notification to the phone.

I've set my clock rate to 80MHz, freeRTOS to tickless idle support, and freeRTOS to run on only one core.

Here's what I've found:

• ble with no sleep mode enabled draws ~90mA
  ble with orig sleep mode draws ~35mA
  ble with the EVED sleep mode draws ~40mA - and I had to manually add esp_bt_sleep_enable

I was surprised that EVED had a higher current draw than the original sleep mode. Am I missing a step here?

[StefanS]

Hi John,
did you ever find a solution to this problem? I'm trying to understand the difference between ORIG and EVED and which one is better?
Thank you

[johnconn]

I didn't make any more headway into this.

I tried digging into the esp-idf and I got as far as the checks that no subsystem was holding a radio lock before entering sleep mode.
I couldn't find the sleep mode implementation. I was working off of commit 11b444b of master