"Mashing" smartphone GSP and Arduino sensor data

[justus.goergens@gmx.net]

Hi,

Thanks for looking into this! In the meanwhile I figured it out. Turns out you were right about mismatching containers.

The data might have been recorded the whole time — after some more changes I exported the CSV and lat/lon values are all there. Seems the problem was purely in the graph: I had tGPS on the x-axis, but that container is always empty. phyphox never writes anything into it, at least not in my setup (iOS, BLE experiment). So the graph had an empty x-axis and silently showed nothing.

The fix was removing the timestamp axis entirely and just plotting lat vs lon directly:

Code:

<graph label="Route" labelX="Longitude" labelY="Latitude" unitX="deg" unitY="deg">     <input axis="x">lon</input>     <input axis="y">lat</input> </graph>

Both containers get populated, graph renders fine. 

Thanks for the reply, 
Justus 

PS: Is component="time" on <location> output expected to work? In my exported CSV the timestamp column is completely empty for every GPS row.