Here are my JSON files for the video produced by Gaetano Ursomanno. His video (and link to his blog) is at: https://www.youtube.com/watch?v=IGsvRT_Ak_M
It took me a long time to get this working, so hope this helps
Files are:
- the Data JSON
- the APL JSON
Copy them and paste into the respective areas in the APL designer Try on a real device (I could only get the Preview mode working on an ECHO SHOW 2
Hope it helps!