arduino and aubtm-20

[Moinakhtar Salman]

hi tehir.i am trying to configure aubtm-20 via arduino rx-tx pins.
i.e i want to send "LLL" and all other AT commands to aubtum-20 via arduino-uno
board.i have connected rx of arduino to tx of aubtm..and tx of arduino to rx of aubtm.and i found that this connection is correct because when i supply power to aubtm.it prints OK on arduino's IDLE .serial monitor.
but when i esnd LLL or any other AT commands ,,their no respose..same happend when i tried this with python...
and yes i have tries all diffrents of sendig LLL or AT-commands like
<cr><lf>LLL<lf><cr>,\r\nLLL\r\n,and many more
please help me

 

[jayanth.devarayanadurga]

I think Serial Reception is working but Serial Transmission is not happening i.e., PC is receiving Serial Data but not sending Serial data.

 

[Moinakhtar Salman]

thank you verymuch for you response...but i want to know how to do this..i mean how to check if tx is not working

 

[jayanth.devarayanadurga]

Post your code. How are you sending AT Commands to BT? You have 2 BT modules. Right? I connected to Uno and one to PC. Which BT module is responding to AT Command?