When we say that the HC-06 is a slave bluetooth device it means that this device is connected to a Master bluetooth device. But i am a little confused regarding to the data transfer between Master and Slave since there is also HC-05 which is used as a Master or Slave. Does this have anything to do with data transfer or is this irrelevant?
For example a master (laptop's bluetooth) can send data to the slave device (HC-06) so as a uController connected with the HC-06 can use the received data but can the slave device send data back to the master device? For example if i want to measure some analog voltage from the ADC of a uController and send this value back to the master (laptop) through the HC-06 module, can i do this?