note!
4. Restore default
Command Respond Parameter
AT+ORGL OK -
Default state:
Slave mode, pin code :1234, device name: H-C-2010-06-01 ,Baud
38400bits/s.
as datasheet say you can use that command to be sure about mode, baud and pairing code.
you only have to select CMD with switch, power it up and make sketch that send AT+ORGL\r\n via arduino serail port with baudrate 38400.
if you then think you got it paired,(in my video i use hc04 module so it stop blinking when paired, for hc05 led blink time thing is right as it's described in datatsheet) make sketch that send some chars(just use loop to send something ) from arduino and try receive it via terminal on pc.
void loop()
{
Serial.write("test");
delay(500);
}