DX BlueTooth Module Notes

These are notes for the Bluetooth-serial module I got from DX.

The following are NOT for the DX module, but one that I think may be the same:

Orange is Module Rx. Connect this to sender's Tx. (pin 2) Use a voltage divider if sender's TX is 5v
Wire shown in white is module TX. Connect this to sender's Rx. (pin 1)
Yellow (pin 13) appears to be for ground
Red (pin 12) appears to be for 3.3v

These are from the forums on the device at DX:

AT codes:

AT+VERSION -- returns firmware version
AT+BAUDx -- where x is 1..9 sets Baud rate to 1200,2400,4800,9600,19200,38400,57600,115200,230400 respectively
AT+<name> -- set BT device name [linvor]
AT+PINxxxx -- set BT PIN number
AT+PN -- set parity

May need to tie pin 34 high to get to AT mode. Release 34 to go back to transperant?

A forum note on the actual DX module:
Connections (pad with golden dot next to it is pin 1):
1: TX (data out)

2: RX (data in)

11: RESET (connect to ground to reset, pullup-resistor of 10K recommended)

12: VCC (3.3V)

13: GND

24: LED output (ON when there is a connection, BLINKS when there isn't).

Connections (pad with golden dot next to it is pin 1):
1:	TX (data out)
2:	RX (data in)
11:	RESET (connect to ground to reset, pullup-resistor of 10K recommended)
12:	VCC (3.3V)
13:	GND
24:	LED output (ON when there is a connection, BLINKS when there isn't).

Full Manual

From another site that seems to sell the same module, a brief datasheet and overview of AT commands

Aaron Birenboim

Last modified: Tue May 29 06:04:11 MDT 2012