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brutzler
@brutzler
I am sure. You have one with only 2,4GHz ?
Markus
@Links2004
can make images of 5 different when i want, reinforced concrete ins´t good for wifi.
it was a 7270 5Ghz disabled
brutzler
@brutzler
OK. using FritzBox nearly over 10 years, But never seen the capture possibility ....shocked....
Markus
@Links2004
its not linked in the normal web interface, its a hidden debug feature.
you can capture all internet traffic with it, very useful for debugging IoT thinks and reverse engineering
brutzler
@brutzler
What is the difference between "AP Schnittstelle 0" and "AP Schnittstelle 1"
Markus
@Links2004
AP 1 is the "gast" wifi when aktive.
brutzler
@brutzler
ok, needful background. Looks like I will have to search for a doc/howto regarding this feature, to complete my documentation
@Links2004 you earned a bear for your help. What part of D r u from?
Markus
@Links2004
RP
Mario Mikočević
@mozgy
bear ? oh my :)
brutzler
@brutzler
Kölsch or Alt?
Markus
@Links2004
Kölsch
brutzler
@brutzler
BY ( Weissbier) :-)
@mozgy: how do you sniff with a RasPi?
Want to have a look at the other side too
brutzler
@brutzler
Just found one of my RasPis with Wlan-Dongle. Should be enough hardware
Mario Mikočević
@mozgy
WiFi USB dongle
brutzler
@brutzler
Yes, have one (as i told). Any special software? Tshark, or....?
Mario Mikočević
@mozgy
plain tcpdump
brutzler
@brutzler
do I get an online dump with this? or do i have to dump into a file?
Hmmm....I like the gui and the filter possibility of wireshark. And it is "online" No need of dumping into a file.
Is there any äquivalent on Raspi for this?
And is it possible to sniff packages from different WiFi-modules? On normal LAN I use a switch with port mirroring to sniff "foreign" packages
brutzler
@brutzler
Other idea: Use the WiFi Dongle on my W7-computer. looking for a driver to let wireshark work with the WiFi-interface. But is it possible to sniff all packages in the WLAN-network? Or only own telegrams. If I can not sniff the packages from my ESP, then the solution from Links2004 "capturing on the router" is the best (and only) way.
Markus
@Links2004
in windows the drivers that give real low level access are rare, on linux its no problem.
"monitor mode" is the keyword
brutzler
@brutzler
thx for input. will check. But interesting prior would be, if I can really sniff foreign packages. otherwise its of no use.
Stavros Korokithakis
@skorokithakis
Hello
I just got a NodeMCU and flashed the Arduino firmware, and am trying to read a few sensors, but the damn thing keeps dumping core at random times. Has anyone had the same experience of instability?
d-anders
@d-anders
a lot of ways to crash it
code?
Stavros Korokithakis
@skorokithakis
I'll post it when I'm at the pc, but it doesn't seem to me like it would be code-related, I'm just doing some digitalReads
Does it ever crash randomly for you?
d-anders
@d-anders
no
Stavros Korokithakis
@skorokithakis
Hmm, I'll post some code soon then, thanks
d-anders
@d-anders
but for example if you use interrupts the wrong way (doing much work in a timer etc) it will crash
Stavros Korokithakis
@skorokithakis
yes, I also hit that (I was adding a timer and it kept crashing), so I took it out
d-anders
@d-anders
having timers should work fine, but the code needs to finish quickly
brutzler
@brutzler
How do you ensure always to have a connection to a router?
When ESP is running with an established connection to the router, and I restart the router. Will the WiFi connection be automatic restored?
Or do I have to restart the ESP too in that case? Perhaps automatically with a watchdog or similiar?
d-anders
@d-anders
good question, i always asumed it would reconnect :)
Stavros Korokithakis
@skorokithakis
@brutzler, that code contains a function to reconnect as well, if you want to check it out
Me No Dev
@me-no-dev
@brutzler it will reconnect automatically
Mario Mikočević
@mozgy
I have several NodeMCU hw, all works fine with sensors (DHT11/22, DS18B20)
Me No Dev
@me-no-dev
@skorokithakis code looks fine
d-anders
@d-anders
@skorokithakis didnt really see anything strange in your code
Me No Dev
@me-no-dev
maybe mqtt giving you headaches?
Stavros Korokithakis
@skorokithakis
@me-no-dev it is, but it's also crashing without mqtt (i removed it from the code)
d-anders
@d-anders
when does it crash and can you remove code to avoid it?
Stavros Korokithakis
@skorokithakis
sometimes it crashes on startup, sometimes it works for minutes, sometimes it crashes after a few seconds
completely random
brutzler
@brutzler
How do you ensure, that the ESP is still working proper?
I want to setup a little 24/7 controller for my warmwater-heating. And this "PLC" should not stop working.
Is there a need/possibility for a watchdog to reset the ESP in case of hanging? And how to recognize this?