My code worked... in the past. But not now

Here is my problem.

I have some code that worked in the past… and oddly… the core seems to be running the loaded code properly (IE; it keeps time and displays it) but… the core starts up… goes to breathing CYAN and then very quickly to breathing GREEN. At this point, It’s gone… and gets listed as offline. (So, there is no talking to it.) I have to factory reset it to get it working again, and I can upload “blink” app and it works fine… and stays breathing CYAN and shows up as online… until… I upload the following code.

 //==============================================================================
//  III  2222   CCCC  CCCC L     OOOOO  CCCC K   K
//   I       2 C     C     L     O   O C     K  K
//   I    222  C     C     L     O   O C     KK
//   I   2     C     C     L     O   O C     K K
//  III  22222  CCCC  CCCC LLLLL OOOOO  CCCC K   K
//==============================================================================

//==============================================================================
// Program:      I2Cclock
// Author:       Pete Willard
// Version:      1.0
// Target:       SparkCore
// Date:         2014/12/04
// Time:         08:14:45
// Notes:
//
// Reference:
//  Used rather sketchy Sparkfun serial LED display "datasheet"
//  Part #  COM-11629 - Note: it's a rather dim display.
//==============================================================================
 # define bitSet(value, bit)((value) |= (1UL << (bit)))
 # define bitClear(value, bit)((value) &= ~(1UL << (bit)))

//=====[ CONSTANTS ]============================================================
// # define DEBUG 0 // 0 = debugging disabled, 1 = enabled
//This is the default address of the OpenSegment with both solder jumpers open
 # define DISPLAY_ADDRESS1 0x71

// definitions from sparkfun for bitwise led controls (decimal/colon/dot)
 # define COLON 4
 # define DOT 5

// Time Sync and Time Zone settings
const int syncInterval = 60 * 60 * 8; //sync every  4 hours

static signed char const DEFAULT_TIME_ZONE = -4;

//=====[ VARIABLES ]============================================================
long millisTimer;
int lastSync = 0;
boolean colonOn = false;
boolean ampm = true;
char bits; // used to track binary values for bitwise

//=====[ SETUP ]================================================================
void setup() {


	Spark.connect();
	 while(Spark.connected() == false) {
	     delay(100);
	 } while(Time.year() == 1970)
	  {
	     Spark.syncTime();
	     Spark.process();
	     delay(100);
	  }
	 Spark.disconnect();
	 while (Spark.connected() == true) {
	     delay(100);
	     Time.zone(DEFAULT_TIME_ZONE);
	 }
	 
	Wire.begin(); // join i2c bus as master
	Wire.beginTransmission(DISPLAY_ADDRESS1); // transmit to slave device #4
	Wire.write('v');
	Wire.write(0x7A); // Brightness control command
	Wire.write(100); // Set brightness level: 0% to 100%
	Wire.endTransmission(); // stop transmitting

}

//=====[ MAIN PROCESS LOOP ]====================================================
void loop() {
	ampm = Time.isAM();
	showTime();
	delay(1000);
	adjustTime();
}

//==============================================================================
void adjustTime() {
	if (lastSync + syncInterval < Time.now()) {
		Spark.syncTime();
		lastSync = Time.now();
	}
}

//==============================================================================


//==============================================================================
//  Must be called after a "begin.transmission()" command.
//==============================================================================
void colonFlash() {
	//Blink the colon every other second

	if (colonOn == true) {
		colonOn = false;
		bitClear(bits, COLON);

	} else {
		colonOn = true;
		bitSet(bits, COLON);

	}
	Wire.write(0x77); // control command
	Wire.write(bits); // Turns on/off colon
}

//==============================================================================
//  Must be called after a "begin.transmission()" command.
//==============================================================================
void setPM() {
	if (ampm == true) {
		bitClear(bits, DOT);
	} else {
		bitSet(bits, DOT);
	}

	Wire.write(0x77); // control command
	Wire.write(bits); // Turns on AM/PM

}

//==============================================================================
void showTime() {
	char out[] = {
		0,
		0,
		0,
		0
	}; // place holder for time array

	char hour = Time.hourFormat12();
	char min = Time.minute();

	sprintf(out, "%2d%02d", hour, min); // format current time into char array
	Wire.beginTransmission(DISPLAY_ADDRESS1); // begin I2C transmit to device

	setPM();
	colonFlash();

	for (byte x = 0; x < 4; x++)
		Wire.write(out[x]); //Send a character from the array out over I2C
	Wire.endTransmission(); //Stop I2C transmission

}

I am really not sure what changed… I’d like to fix my code somehow so it stops going offline and breathing GREEN.

pw

I am having a similar problem with many devices - after a while they will no longer connect to the cloud nor the wifi network. Usually a CC3000 flash helps to fix the problem, however the fix is temporary and the device is highly likely to bug out like that again in the near future.

Well, I used DFU to install CC3000 and then tinker… ran with breathing CYAN for an hour… no issues. then I uloaded the code above and it loaded, breathed CYAN less than 2 seconds… went offline and started breathing GREEN. I’m stumped.

@pwillard, not sure why you are stumped! You have Spark.disconnect(); in setup() at line 60 which will disconnect the Cloud. This will give you a breathing green LED! What were you expecting?