Spark.process() blocking in manual mode - no WIFI?

Firmware
1

When running in SYSTEM_MODE(MANUAL), is it normal behavior for the Spark.process() (Particle.process()), to block for extended periods on the Photon when no WIFI is available?

I don’t remember seeing this exact issue when testing recently on the Core.

Is it expected that the connection status be checked explicitly before calling Particle.process()?

What I see appears to be that the process function times out after tens of seconds.

2

If you’re running intentionally without WiFi, call WiFi.Off() to keep the WiFi module from trying to connect.

Otherwise, yes it will call WiFi.connect() on it’s own, which blocks for 10-20 seconds when no wifi is present.

Alternatively, turn on system threading.

3

@jakeypoo - Thanks. I thought that system threading was turned on by default.

4

@jibarra, system threading is still considered beta so it is not turned on by default :wink: