I have bought several HC-05 at ATDelivery distributor.
All of them operate fine using Softserial and my Arduino Uno.
I can transmit data in both directions between PC/Windows and Arduino Uno via bluetooth with 9600 baud.
I would like to change HC-05 configuration (e.g. bitrate) via AT commands.
I am following the documentation from AzDelivery. However, there is no communication to HC-05 possible.
Similar experience?HC-05 anleitung.pdf (614.0 KB)