SOS when WiFi without Internet

Connectivity
,
1

I took P1 and cleared its memory via ST-link (since I changed a lot of system functions before :

Code

SYSTEM_MODE(SEMI_AUTOMATIC);
SYSTEM_THREAD(ENABLED);
STARTUP(System.enableFeature(FEATURE_RETAINED_MEMORY));
STARTUP(softap_set_application_page_handler(myPage, nullptr));
STARTUP(WiFi.selectAntenna(ANT_AUTO));).

Flashed to 1.5.2. Reset it to factory condition(as I think) with the help of a particle doctor. Then I flashed Tinker. And here’s what I noticed: when the device is connected to the WiFi, but the network is without the Internet, then the device flashes cyan for a while and then red twice (SOS). Moreover, when I turn on logs:

Logs

0000028513 [hal.wlan] INFO: Using auto antenna
0000028561 [hal.wlan] INFO: Joining vlad
0000028563 [hal.wlan] TRACE: Free RAM connect: 36144
0000031662 [hal.wlan] INFO: Bringing WiFi interface up with DHCP
0000051897 [hal.wlan] TRACE: connect cancel
0000051903 [hal] TRACE: 20015b04 socket list: 0 active sockets closed
0000051903 [hal] TRACE: 20015b0c socket list: 0 active sockets closed

The same happens on Photon. I don’t have a completely new device, but I think there is the same problem.
This is not a problem when the device has small firmware. But in my case it sometimes leads to device reboots.
Tell me please, am I doing something wrong or is it a system error?

2

Two red blinks is not an SOS pattern. An SOS is 3 short blinks, 3 long blinks, then a varying number of short blinks to specify the particular SOS code.

Two orange blinks is “could not reach Internet” which is the expected behavior in that case.

1 Like
3

Thanks for the answer! Indeed, I missed this information. And the fact that the device is rebooting after that has nothing common with this event? It restarts exactly after this message:

0000051903 [hal] TRACE: 20015b04 socket list: 0 active sockets closed
0000051903 [hal] TRACE: 20015b0c socket list: 0 active sockets closed
4

The device should not reboot, but it will list sockets and closing as the network stack will reinitialize. If you are using SYSTEM_THREAD(ENABLED) or SYSTEM_MODE(SEMI_AUTOMATIC) your code will continue to execute while the network stack reinitializes.

1 Like
5

But it reboots… Yes, I using this commands. Well, it means there is an error in my code. Thanks for the help!

6

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