ConnectIQ speed data field lagging built in speed data field.

If I create a simple "MySpeed" data field like this:

function compute(info) {

        // See Activity.Info in the documentation for available information.



		if(info.currentSpeed == null) 

		{

			return 0.0;

		}



		spd = info.currentSpeed*3.6; // m/s => km/h

}

Then set up a screen with MySpeed and built in Speed data fields, then MySpeed will lag by 1 second (screen/speed/gps update rate).

e.g.

MySpeed display Built in Speed
0.0 0.0
0.0 5.0
5.0 6.0
6.0 8.5
8.5 0.0
0.0 0.0

Why? This surely must be a bug?

Btw: This is with a Fenix3, don't know if it is the same with other devices?

Nikeow over 9 years ago

i did a similar test on this as well. But using elapsed time.
By putting together test codes together and putting the calculations into a datafield and looking at the values as reported by Native Garmin Run App, a CIQ data field.

The same observation was noted as ooyhare. The CIQ fields are lagging by 1second.

CIQ Elapsed Time : 1sec
native Garmin Elapsed Time : 2sec

Then..

CIQ Elapsed Time : 2sec
native Garmin Elapsed Time : 3sec

CIQ becomes a secondary output and not realtime?
Would like to get a CIQ expert from garmin to provide insight.

These lagging will cause calculation errors between native apps and CIQ apps. How can this be remedied? If at all possible?

Thanks.

Brandon.ConnectIQ over 9 years ago

We have this reported for investigation, but there's no clear answer at this point. Thanks for the report!

oyhaare over 9 years ago

I can add that after my initial post, I tried again after a few days without being able to reproduce this.
Have not really played around with it later...

I guess there is a intermittent bug somewhere in connect IQ or in fenix 3 (and other devices?) firmware causing this.