HC-05 not responding to AT command

Projects Programming
1

Hi good day to yall

Im using a hc 05 blutooth module(2pcs) I want to set the one as master and the other is slave, however AT Command is not responding what I
get it Enter AT Command but no response at all

I tried many tutorial from yt, read alot of same issues with me but i couldnt get it to work pls help me

2

There has been an influx recently of bad HC-05 … if you get AT mode OK but can’t send some well defined commands then you might have a crappy unit.

3

@nigeru_12

Try Task-12.3 of the attached file Master-Slave opeartion of HC05 BT Modules:
Expt-12(PCD) (2).pdf (720.3 KB)