Hello! I have been working on an Arduino project, and recently ported the code to my Spark Core. I understand that when the core powers up, it connects to the cloud (which is a blocking function). The problem I have is not depending so strongly on a wifi connection. For example, if my router goes do…

@rocksetta , this should work, but there are some things to improve. Why use multiple consecutive delay() statements instead of one big one - even Arduino would allow up to 65535 and the Core 2^32 - 1 Have you had a look at the “soft delay”, I’ve used in my sample code? This is the prefered way to …

I thought delays over 20 seconds messed up calls to spark.process(), but if not it isn’t a big deal. Good idea with the soft delays. My code took about 6 minutes to write so it may have a few issues. I still haven’t got confirmation if the code works as my Core is busy with another project. Tha…

delay() was adapted in a quite early stage to internally call Spark.process() once every second of a long delay. My code is confirmed to work. Just strip away the interrupt part - since it’s not needed - and put in what you want :wink: :+1: You can still print booleans as integers for deb…

Good to know Please show your new code as the interrupt and volatile variable show up in about 5 places, and all of this is supposed to be helping beginners. Actually 0, 1, 2 is needed since 0 and 1 does not prove Wifi has been disconnected and could show a false positive. But seriously we just wan…

You can try using this: void setup(){ pinMode(led,OUTPUT); digitalWrite(led,HIGH); } void loop(){ if(WiFi.ready() && !Spark.connected()){ Spark.connect(); } else WiFi.connect(); } digitalWrite(led,!digitalRead(led)); delay(1000); }

[image] rocksetta: Please show your new code as the interrupt and volatile variable show up in about 5 places, and all of this is supposed to be helping beginners. Actually not quite :wink: All of this shoud be helping you to get up to speed and being an advocate of the paradigm to lead peop…

I disagree, the Hello World program (which is what we are making) is made to get students started so that they can put time into their own projects. But I am too busy to argue. I will just teach my method and ignore yours. :wink:

@rocksetta , @ScruffR you actually are both vociferously agreeing! You both agree that teaching is important. To that end, both of you champion different but great approaches. Thanks to both of you for taking the time to help, teach and support. :clap:

Actually we are both ridiculous basing our entire argument on SEMI_AUTOMATIC mode having a blocking call to Wifi. Since it is not blocking the code can be much smarter. This new code shows D7 HIGH when not connected. As soon as the core is connected D7 blinks fast, then as you lose connectivity D7 g…

I think I finally found a working solution for the blocking Spark.connect call. I’ll post some code later but anyway my idea is the following. I found out that spark.connect would lock up my code when I successfully connected to the WiFi but internet wasn’t working. So what I did before calling Spar…

Create time out for Spark.connect()?

Firmware

ScruffR August 31, 2016, 12:14pm 43

Have you tried SYSTEM_THREAD(ENABLED)?

Making WiFI optional

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Create time out for Spark.connect()?

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