Search found 26 matches

by Harold L.
Mon Sep 14, 2015 3:42 pm
Forum: ESP8266 SDK
Topic: Power consumption problem when the AP is not avaliable
Replies: 33
Views: 17755

Re: Power consumption problem when the AP is not avaliable

(I tried to post in this thread a couple of days ago, apparently my comment was not approved by the moderators. I'll try one more time...) I have encountered the same unexpected behaviour of the chip. I think we need to distinguish between two scenarios here: (A) The ESP involuntarily loses connect...
by Harold L.
Fri Sep 11, 2015 1:45 am
Forum: ESP8266 SDK
Topic: Power consumption problem when the AP is not avaliable
Replies: 33
Views: 17755

Re: Power consumption problem when the AP is not avaliable

Hi, we've tried all related APIs, but no lucky, ESP8266 consumed too much battery when AP is not exist, are you still working with this problem? Glad to hear from you, thanks! hi, Harold L We have a lower power working mode ,base on deep sleep mode. please give your e-mail address to me, we will co...
by Harold L.
Thu Sep 10, 2015 5:06 am
Forum: ESP8266 SDK
Topic: Power consumption problem when the AP is not avaliable
Replies: 33
Views: 17755

Re: Power consumption problem when the AP is not avaliable

Hi, we've tried all related APIs, but no lucky, ESP8266 consumed too much battery when AP is not exist, are you still working with this problem?
Glad to hear from you, thanks!
by Harold L.
Mon Aug 24, 2015 11:18 am
Forum: ESP8266 SDK
Topic: Power consumption problem when the AP is not avaliable
Replies: 33
Views: 17755

Re: Power consumption problem when the AP is not avaliable

I do believe this is a bug in the SDK. The bug being that the average power consumption goes up by a significant factor in STA mode if the AP is not reachable. The work-around I've found is to write a callback for wifi status changes and when you get a disconnect event implement a back-off retry me...
by Harold L.
Mon Aug 24, 2015 11:07 am
Forum: ESP8266 SDK
Topic: Power consumption problem when the AP is not avaliable
Replies: 33
Views: 17755

Re: Power consumption problem when the AP is not avaliable

1、As you see form table 4, the current rising is inevitable when 8266 send packet.If you want to reduce this part of the current, You could modify the parameters in the "esp_init_data_default.bin" via "flash download tool" to reduce the power of Tx. 2、8266 have some sleep mode, ...
by Harold L.
Wed Aug 19, 2015 11:25 am
Forum: ESP8266 SDK
Topic: Power consumption problem when the AP is not avaliable
Replies: 33
Views: 17755

Re: Power consumption problem when the AP is not avaliable

there are two reasons for this current: 1. when the AP power off, 8266 will send package for disconnect. 2. 8266 will change data rate to try to connect AP, because 8266 don't know how about AP. May be because the router signal is weak. High data rate means high current, although a short duration. ...
by Harold L.
Mon Aug 17, 2015 11:36 am
Forum: ESP8266 SDK
Topic: Power consumption problem when the AP is not avaliable
Replies: 33
Views: 17755

Re: Power consumption problem when the AP is not avaliable

Btw, you should focus on the relative value, the rising-edge of the current when power off your router(130mA - 70mA = 60mA) instead of the absolute values, because there exists some bias-current caused by things like LCD screen, external ADCs in my measurement. Surely, those things would not be the ...
by Harold L.
Mon Aug 17, 2015 11:26 am
Forum: ESP8266 SDK
Topic: Power consumption problem when the AP is not avaliable
Replies: 33
Views: 17755

Re: Power consumption problem when the AP is not avaliable

Dear Harold L, Could you tell me how get the value "130mA" , and how long this current exist. Ths Hi! Any of the cases below would lead you to the abnormal high current: 1. Power off your router after ESP8266 connected as a station, you will see the abnormal high current. In my situation,...
by Harold L.
Thu Aug 13, 2015 2:37 pm
Forum: ESP8266 SDK
Topic: Strange problem with SDK v1.1
Replies: 22
Views: 11994

Re: Strange problem with SDK v1.1

And could you please read another problem we've met recently: Power consumption goes very HIGH when the AP is not available. Thanks!
by Harold L.
Thu Aug 13, 2015 2:34 pm
Forum: ESP8266 SDK
Topic: Strange problem with SDK v1.1
Replies: 22
Views: 11994

Re: Strange problem with SDK v1.1

Hi,Harold, We believe that the latest esp_iot_sdk_v1.3.0 solved your problem. Please have a try and feel free to let us know if your problem is still unsolved. Thanks for your interest in ESP8266 ! Yep! It really works! Great! Thank you very much! Btw, is my report eligible for the Bug Bounty Progr...

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