iOS always sends the same command, Android works OK about flutter_reactive_ble HOT 2 CLOSED

@andrewknockin I wouldn't call your code correct (I wouldn't expect the result you're describing anyway, but let's eliminate issues one by one).

Your sendString(·) function is asynchronous, but you're not waiting for its call to complete, before making another:

void sendInitialCommands() async {
  print("====sendInitialCommands");
  sendString('y');
  sendString('x');
  sendString('h');
  print("=======================");
}

should be

Future<void> sendInitialCommands() async {
  print("====sendInitialCommands");
  await sendString('y');
  await sendString('x');
  await sendString('h');
  print("=======================");
}

I suggest you to check whether the corrected code works for you, before we look into the other possible causes of the issue.

from flutter_reactive_ble.

Thank you very much @werediver. Adding the await solves the problem.

from flutter_reactive_ble.