I would like to gather sensor data, publish, go to sleep, repeat. Currently I repeat this cycle every 10 minutes and go to sleep using standby stop mode to save data and avoid having to reestablish a connection each time. My system works fine for anywhere from 0-10 hours, but I always seem to run into problems. The led pattern usually goes from breathing cyan to off, publishing data right before going into stop mode, which is what I want. But sometimes the Particle will breath cyan, and just stay breathing cyan - no data published, and doesn’t go into back stop mode. I can’t let this happen, as it will drain too much battery life. I tried including the watchdog application, but I still ran into the same problem. I understand that connection won’t always be great, so for those cases I would like my system to continue gathering data, but just store it on my SD card and not publish.
Long story short, I want my system to fail safely. Run, publish data, and go to sleep whenever there is a cloud connection. If there is no cloud connection, run and store the data on the SD card, then go back to sleep. I can’t have my system hanging. Here is my code:
https://go.particle.io/shared_apps/5c4c1b9fa48b8fa3fe001071
Does anyone have any suggestions? Any help would be very appreciated