Going straight to the point, i did plenty of tutorial on how to print a arduino VAR into my Appinventor app, one time the label showed question marks symbols "{?}", another time it just showed a blank text and etc.
Now i started all again by doing a simpler tutorial of just showing 1 value to my APP, and now the label doesnt even updates, and it still says connected.
and yes i already investigated on this forum and i found answers, i changed code / wiring, but nothing works
PetHealth.aia (2.9 KB)
this is all the code, i even tried changing the baud rate, for some reason in a tutorial video, it changed the baud rate of the BT to 38400 without even explaining, still with 9600 doesnt work
I would be very thanked if someone can help me, im doing this for a school proyect and i found out this issue