I had the same problems where only the AT command received a response. I have the breakout version 1.03 with firmware version 1.5. Found and changed a simple Arduino sketch to allow AT commands to be sent to the Bluetooth adapter. Simply adding a delay(10) allowed the other commands such as AT+VERSION to get a correct response from the Bluetooth adapter. I used Arduino's serial Monitor to send all the commands. This is based on the code in the link provided earlier in this thread. Hope this is useful to some!
Link to the code: http://eclipse.clinertech.com/arduino/bluetooth/blth.html
Link to the code: http://eclipse.clinertech.com/arduino/bluetooth/blth.html
I have the same problem with AT commands, only have AT working, non other. Is the problem in the software serial sketch maby? I don't have a usb to ttl board, only a usb to rs232 so I really need make it work over the arduino, any Ideas?
This code worked for me!! Thank you very much! I had to change BAUD rate to 9600 for BT and 57600 for arduino comm. Then in serial monitor baud 57600 no line ending. I am now controlling my lights via bluetooth! Thanks so much!