não fiz nenhuma alteraçao,
testei o codigo com o driver
testei tambem somente com arduino sem o drivero problema é realmente o aumento de cpu e ram ,com o codigo deadMan
j2 prime android 6.0, 1,5G de ram
Il faut trouver un langage commun, je propose l'anglais 
I am confused ...
This Arduino sketch has no sendBlueToothData() function and should not send anything back to the smartphone
The App has no idea whether the deadman function is implemented or not in the Arduino sketch
Let me think about it 