Enable IDE logs and see whether there is more information there:
https://www.b4x.com/android/forum/posts/50478/
Ok, the other card did the same error tonight, but not reset in loop this one isn't faulty.
So, here a screenshot under B4R, even the code compiled good no start, no "Appstart" message. But when i opened the log i saw connexion fails don't know why though ? See on Arduino's monitor 2nd picture that works :
Here a screenshot under the Arduino serial monitor, after a simple reset card works and data are all presents :
And the card setup, in case that can help too :
Attached the log, for me it's Chinese
.
I don't understand why the weird numbers like port Com, i have only 2, Com6 an ESP01 who stay plugged on a FTDI, and Com4 the MiniD1.
Hope you can find something interesting inside all.
Note: Code isn't finish and contain yet some personal data, so if you want it tell me, i'll send you the project by PM.
Regards