I have connected up both my spark cores without any problem and managed to load the blink LED project. It all works fine. But after a period of time, exact time not sure yet but approx. 30mins. the project stops running and the Cyan LED is flashing. Again not sure if it is just; • Flashing cyan: Co…

I have some weird s**t going on. I have a core currently plugged into a relay board fed from a 12V 5A power supply Firstly, the spark core will not program more than once without manually entering bootloader mode. It has been doing this all day, from the demo led flasher to something slightly more …

Hey everyone - thanks for sharing all the debug info. We’re doing some testing on our side as well to figure out exactly what’s going on, but we haven’t yet got this one figured out yet. Keep the info coming!

On further testing, things start to play up if I change the rly_on_time to be 500. It works 2 out of 3 cycles. At this value the core can still be flashed easily by the web IDE. At rly_on_time = 450 it seems to be quite stable.

@nil_orally You're experiencing a bug where user code with long delays blocks the Core-to-Cloud communications. See here: [image] Breathing Cyan "Core not found. Check that it is online" when using Build Troubleshooting Hey gu…

Thanks Zach. That’ll teach me to be lazy!

No worries @nil_orally ! Just created a new thread for your issue: [image] Known issue: long delays or blocking code kills the connection to the Cloud Hey all, There are a number of threads relating to the same general issue, which is that the Core becomes unresponsive after flashing yo…

In my case it fails running tinker. So excessive delays are not my root cause.

Yep, that mention of delays and blocking code was specifically for @nil_orally

Not picking a fight, just keeping the torch alight for whatever problem gets tinker wrapped around the axle :slight_smile:

Just chiming in to say that I’m having the same problem with both the cores I’ve tried. One is running Tinker and the other is running a simple bit of code to fade the RGB LED (with a 3 second delay in between) Both Cores will lose connection with the Spark Cloud and display a blinking cyan light. …

Dropping the connection to spark cloud

Troubleshooting

zach December 23, 2013, 2:17pm 46

No worries @nil_orally! Just created a new thread for your issue:

Topic		Replies	Views
Continuous losing connection Troubleshooting	31	9255	March 28, 2014
Core should keep running or be able to start even w/o Cloud access Firmware	56	9008	June 10, 2014
API to Core response time [patched] Troubleshooting	38	3540	October 13, 2014
Functioning with wifi and internet drops Troubleshooting	40	6757	May 30, 2014
Known issue: long delays or blocking code kills the connection to the Cloud Troubleshooting	39	11727	May 25, 2016

Dropping the connection to spark cloud

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