No... im saying the adruino does not reconize the comanand com1
true its easier to keep commands with just 1 karakter. so im trying that now, a shame i don't have that much time to test things, but keep ya posted..
btw
this is the app
https://play.google.com/store/apps/details?id=appinventor.ai_garylcyhk.Bluetooth_Stepper_Motor_Controller_21072016
the complete sketch is in the attachment
Control_stepper_motors_02082016_one_stepper_release.ino (15.6 KB)