hello I use a hc-05 hc-05 is connected correctly I can not log in AT mode but I can not communicate through the serial port of Arduino i use an Arduino two for this experience the communication baud rate are both set to 38400 baud help please let I also set the com from windos to 38400 settings but it does not work
i use an Arduino two for this experience
No you use an Arduino Due not a "two" your translator got that wrong.
hc-05 is connected correctly
You would not be the first person that thought there was nothing wrong with the connections when there was, so show the schematic.
I can not log in AT mode but I can not communicate through the serial port of Arduino
You are going to have to explain that a bit better please.
I communicate with Arduino via serial port ( com 4 for my pc ) and to send the data for hc - 05 it copies the data entered on the serial port and send them on serial2 arduino . Tomorrow I enclose a copy of the program can not tonight . thanks giggi
Rx to tx2 arduino Tx to rx2 arduino Key (have a button) to vcc Vcc to vcc Gnd to gnd