Bluetooth Module Setup

HC-06 Module

Connect HC-06 module to PC via USB-UART converter (e.g.FT232RL) Use Arduino IDE built-in Serial Monitor and perform selections/actions in order shown in the following pictures:

If you don't see the OK response after sending AT, then:

1. try setting different baud rates one by one from 1200 to 115200 (sometimes modules are configured to a baud rate other than 9600).
2. try changing "No line ending" to "Both NL & CR" and walk through available baud rates (as described in #1 above)

Typical session for earlier firmware versions:

1. AT -> OK
2. AT+NAMECHORUS -> OKname
3. AT+PIN1234 -> OKpin
4. AT+BAUD8 -> OK115200

Typical session for firmware 3.0 (and later?)

1. AT -> OK
2. AT+NAME: CHORUS -> OK
3. AT+PSWD: "1234" -> OK
4. AT+UART: 115200,0,0 -> OK

Available commands

For earlier firmware versions

• AT - check the connection
• AT+VERSION - get firmware version
• AT+NAMECHORUS - Change name to "CHORUS". No space between name and command.
• AT+BAUD8 - change baud rate, 8 is the code for 115200 baud, no space between command and code.
• AT+PIN1234 - change pin to 1234, again, no space.

For firmware version 3.0 (and later?)

• AT - check the connection
• AT+VERSION - get firmware version
• AT+NAME: CHORUS - Change name to "CHORUS".
• AT+UART: 115200,0,0 - change baud rate to 115200 (don't know what are the zeros after it :)).
• AT+PSWD: "1234" - change password (pin) to 1234. Quotes required!
• AT+NAME - show name
• AT+PSWD - show password (pin)
• AT+NAME - show name
• AT+UART - show UART settings