BT streaming clogged

Projects General Guidance
1

Hi,
I'm trying to stream 7 char packs (including "<" and ">" delimiters) at a slow 2 packs per second rate, withouth handshake, from AI2 app (Android) to HC-05/Arduino.
It works at first, but after a few packs of data it gets "clogged". AI2 starts running slower (which I know because I included a blinking button as watchdog in Android creen). Of course, it manifests in the Arduino side too, which I see in the LCD displaying the characters.
Since both Arduino and MIT AI2 are very high level languages, I don't know how to debug it at low level. I have a toy osciloscope with data caputre but it's too elementary to debug a long string of serial data that I can sample between HC-05 and Arduino UNO board.
Any idea what could be wrong or how I could debug it?
Thanks,
David.

BTtx.jpg
BTtx.jpg791×471 89.7 KB

LCD_BT_Servo.ino (3.12 KB)

2

Please observe the forum guidelines and post your code inline, with code tags as explained in the sticky thread at the top of the forum. Don't post it as an attachment unless it is too big.

3

You may want to try something other than your custom App Inventor code.

This bluetooth controller app appears to have an auto send mode, perhaps you could try it instead of the app you have written

I'm sure there are more controller apps with automatic sending, but I'm not familiar with any, and my experience is with BT terminal apps which don't seem to support repeat/period sending.