Boron's gone offline

[robc]

@StngBo

I don’t set the Particle.keepAlive, so I assume it is set to the default 23 mins?

Yes. I assume as well after reading the docs and forum! So, recommend you shorten the time between keep.Alive()'s or send a periodic ping. I do both.

@StngBo

So if my devices have timed out, does the particle attempt to reconnect at certain intervals?

It varies. Sometimes I have seen the devices go online within an hour to 3. Other times - never.

@StngBo

Could it be getting stuck somewhere and if this was the case would a simple application watchdog with particle.reset guard against this(and by guard I mean reset device) ?

Yes. As Paul_M was referring to - things seem to have changed. I use a watchdog to look at diagnostics and force a System.reset() before my device goes offline. You might already be using the library:

Getting system diagnostic data from user firmware

The system diagnostics feature in Particle Device OS 0.8.0 can make troubleshooting device problems easier. For example, when viewing a device in the console, you can view the device vitals: [devicevitals] This is periodically updated automatically so you don’t have to worry about it. You can also use the cloud API to request a refresh of the device vitals. You can also monitor the device vitals event by subscribing to it. But what if you want to get at some of this information from your us…

Some example statements I use from the DiagnosticHelperRK library are:

g_cloudConnectionStatus = DiagnosticsHelper::getValue(DIAG_ID_CLOUD_CONNECTION_STATUS);
// connected = 2 connecting = ??????

and

g_cloudConnectionErrorCode = DiagnosticsHelper::getValue(DIAG_ID_CLOUD_CONNECTION_ERROR_CODE);
// error code = 0 (no error) 10(?????) 17(?????)

One last option you might consider: How to force a handshake for OTA updates - #30 by ScruffR

Last, is an example I use while connected to cloud to force a new session (force a handshake):

Particle.publish("spark/device/session/end", "", PRIVATE);
// will FORCE NEW SESSION AFTER DISCONNECT!!!!!!!!!
softDelay(1000);