ESP8266 Community Forum

Posted: **Thu Oct 15, 2015 8:18 am**

Hi,
I'm using PWM for 4 channels with SDK V1.3.0 for control of a RGBW lamp.
After perfect start and working for rather long time with changing colors, the PWM is out of control: Lamp is flickering with several colors.
This happens, when new commands via http are sent in short intervals.
System output then endless:
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System then hangs up.
Any idea what the message means???
Regards
ulko

Posted: **Mon Nov 09, 2015 8:51 am**

I just noticed the same thing on my unit...not sure what it means either...it wasn't related to PWM, but http Server in my case.

Posted: **Wed Nov 11, 2015 10:54 am**

Sorry to bring up an old topic.

I am getting a similar error when using a TCP client to get the weather from an online weather API. It works fine for a few hours, after a few hours it fails to retrieve the weather with that error being shown over and over again.

Here is a snipped from what is happening. I will try and debug this issue over the next while.

Code: Select all

Download: http://api.openweathermap.org:80/data/2.5/weather?id=6094817&units=metric&appid=<MY API KEY IS HERE>
+TCP connection
connect to: api.openweathermap.org
realloc 125 -> 256
===========
WIFI Status:
Successful connected
===========
DNS record found: api.openweathermap.org = 162.243.58.21
TcpConnection::connect result:, 0
OnConnected
TCP connected
onReadyToSendData: 0
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===========
WIFI Status:
Successful connected
===========
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TCP received: (null)
Failed onGetWeather
Server response: ''
TCP connection closing
-TCP connection

Posted: **Fri Nov 13, 2015 10:51 am**

From the evidence I have gathered so far this seems to be related to exhaustion of heap memory.

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