BLE-only power consumption

mseiler
Posts: 1
Joined: Sun Aug 27, 2017 8:32 am

Re: BLE-only power consumption

Postby mseiler » Tue Sep 05, 2017 7:50 pm

Any news for the low power implementation ?

Shkoder
Posts: 1
Joined: Thu Dec 28, 2017 1:57 pm

Re: BLE-only power consumption

Postby Shkoder » Thu Dec 28, 2017 2:02 pm

I wish to ask a question about power consumption with WiFi and BLE turned off separately. when both BLE and WiFi turned off I have consumption around 20mA. when both turned ON consumption is 160mA. but I have same power consumption when only BLE turned ON (and wifi off) or WiFi turned ON (and BLE off). is there any explanation of above?

also I hope that BLE lower power modes will be supported soon..

dave111
Posts: 45
Joined: Fri Mar 03, 2017 1:37 am

Re: BLE-only power consumption

Postby dave111 » Wed May 30, 2018 4:46 am

ESP_Sprite wrote:FYI: The BT(LE) drivers in esp-idf as of now aren't optimized for power yet, so while the hardware should support low-power modes, there's no software to use them yet. We're working on getting the needed changes, however.
Has there been progress regarding BT-LE low-power modes?

When will BT-LE connectivity through deep sleep be possible?

Thank you

dave111
Posts: 45
Joined: Fri Mar 03, 2017 1:37 am

Re: BLE-only power consumption

Postby dave111 » Wed Jun 06, 2018 5:34 am

dave111 wrote:
ESP_Sprite wrote:FYI: The BT(LE) drivers in esp-idf as of now aren't optimized for power yet, so while the hardware should support low-power modes, there's no software to use them yet. We're working on getting the needed changes, however.
Has there been progress regarding BT-LE low-power modes?

When will BT-LE connectivity through deep sleep be possible?

Thank you
Hello,

A Bluetooth Low-Energy device without support for low-power modes? Is there really no new information you can share about this? I would very much like to better understand the situation.

Maybe such info was already shared. But I am unable to find it.

Thank you.

fe7565
Posts: 2
Joined: Sun Jul 15, 2018 5:52 am

Re: BLE-only power consumption

Postby fe7565 » Sun Jul 15, 2018 6:02 am

Agreed, quite puzzling: "A Bluetooth Low-Energy device without support for low-power modes?" ?????

I got a code working in BLE with external interrupts connected to an Android phone via MIT App Inventor 2 program, but the power consumption is over 170 mAh in normal mode, and putting the ESP-32 to sleep and waking up again takes couple of seconds per cycle. The chip gets hot and I am reluctant to enclose it in a project which may operate outdoors.

So been looking at the nrF5x, the BT-12, the HM-13, BlueDuino, BlueFruit, DA14580 instead.

HITMAnsOFT
Posts: 10
Joined: Fri May 05, 2017 6:53 pm

Re: BLE-only power consumption

Postby HITMAnsOFT » Mon Jul 16, 2018 5:33 am

fe7565 wrote:
So been looking at the nrF5x, the BT-12, the HM-13, BlueDuino, BlueFruit, DA14580 instead.
I'm sorry if my comment is not seen as constructive, just sharing my experience, no affiliation with Nordic: I've ended up using nRF52832 and mbed OS for the project I originally asked this question for. Quite a comfortable solution if you don't need the whole Wifi stack, only BLE.

wobblyboots
Posts: 19
Joined: Mon Sep 18, 2017 4:48 pm

Re: BLE-only power consumption

Postby wobblyboots » Tue Oct 30, 2018 2:10 pm

Just checking in if the latest ESP-IDF has support for less power consumption during BTLE?

kind regards
Ian.

Neil.Macmullen
Posts: 2
Joined: Sun Mar 10, 2019 12:48 pm

Re: BLE-only power consumption

Postby Neil.Macmullen » Thu Mar 14, 2019 4:49 pm

*Bump* Any progress on this Espressif? We'd really love to be able to transmit a beacon every few seconds while averaging < 100uA but this just isn't possible at the moment.

JustNopIt
Posts: 21
Joined: Wed Jul 13, 2016 10:14 am

Re: BLE-only power consumption

Postby JustNopIt » Tue Aug 06, 2019 1:36 pm

@Espressif I've been waiting for a year and you still haven't answered.

ESP_Sprite
Posts: 2761
Joined: Thu Nov 26, 2015 4:08 am

Re: BLE-only power consumption

Postby ESP_Sprite » Wed Aug 07, 2019 2:49 am

Yes, there's power saving in BLE mode now. See e.g. this issue for more discussion. Note that the ESP32 is not a chip specifically optimized for BLE use, so even with optimizations it may use more power than dedicated BLE chips.

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