Bluetooth Serial Adaptor User`s Manual
Contents
1.2. Bluetooth Serial Adaptor User s Manual Ea G Oo a J a pou i m p 5 po an Wireless Solutions in Your Hand Specification Description Chip antenna max 1 to 2 dBi Power Supply 5 to 6 V DC Current Max 90 mA Consumption Operation 20C to 75 C Temperature 35 mm W x 65 mm D x 16 mm H 2 2 RS232 Interface 2 2 1 Pin out 5 43 2 1 9 8 7 6 2 2 2 Signals Remarks The default hardware configuration is for using CTS RTS If you want to use DSR DTR please contact us 2 3 Factory Settings The factory settings of COM port are as follows Baud rate 19200 bps Data bit 8 Parity none Stop bit 1 Flow control H W or none Others Please refer to section 4 3 AT Command Set Installation 3 1 Hardware Structure The figure below is an outline of the adaptor R T D G D R C 6 8 2 oO _Q 1 Introduction Thank you for purchasing our Bluetooth serial adaptor The adaptor eliminates your conventional RS232 serial cables providing an easy to use invisible connection with superior freedom of movement This tiny adaptor allows any device with a standard 9 pin serial port to communicate wirelessly You can communicate with another Bluetooth serial adaptor or other B uetooth enabled devices such as a laptop computer PDA or mobile phone 1 1 Features Supports Bluetooth Serial Port Profile and Generic Access Profile No need of external host and software Easy of inst
3. allation and use Supports configuration of the local device Easy of maintenance Supports up to 100 meters line of sight 2 Package Bluetooth serial adaptor Antenna DB9 male to female converter USB cable for power supply DC adaptor User s manual 2 Specifications 2 1 General eeeoeeoeedeeo 02008080 80 Chip antenna or SMA female external antenna optional dere D_SUB 9 pin female Interface 2 1 2 3 p j H t HHH ii fi HHH arn j 7 6 5 4 _5 Mini USB Connector 6 Reset button 7 Antenna connector 3 1 1 Reset Button By pressing the Reset button you can Disconnect and reconnect a wireless connection a short press Restore the factory COM port settings over three seconds press 3 1 2 Slide Switch The slide switch can swap TXD RXD and CTS RTS signals By switching you can set the adaptor either as a DTE towards antenna connector or a DCE towards RS232 connector 3 1 3 Power Supply The adaptor can be powered via An AC DC converter output power 5 to 6 V DC 300 mA A USB cable e Pin 9 of the D SUB 9 pin connector 3 1 4 LED Status The following is LED status information Power LED on Link LED off Link LED fast 0 1 sec blinking ee Discoverable and waiting for a Link LED fast 0 3 sec blinking connection slave eee Inquiring master mode Power LED off Link LED slow 0 9 sec blinking Link LED very slow 1 2 sec blinking Connectin
4. e the current setting O O 3 D 5 2 The search ends with a message Inquiry ends xx device s found This command is available only when the adaptor is in the manual master role Inquire Bluetooth devices in the neighborhood listing 8 devices the maximum This command is used to drop the connection either master or slave role And it is used to specify whether the adaptor can be discovered by remote master devices Note it will cause a reboot when ATHO or ATH1 take effect Drop current connection in Online Command mode The adaptor enters the undiscoverable mode If a pair has been made the HO original connection can be resumed But other remote master device cannot discover this adaptor This command is used to specify a PIN The default PIN is 1234 Paired adaptors H1 default The adaptor enters the discoverable mode should have a same PIN Inquire the current setting P xXxXXxxx xxxx is a 4 8 digit string ooo This command is used to inquiry the information Cancel authentication by PIN Inquire the version codes P Inquire the current PIN List all current setting value Inquire RSSI in Online Command mode Ks This command is used to specify one or two stop bits of COM port This command is used to specify a name for the adaptor You can specify a friendly name using 0 to 9 A to Z a to z space and which are all valid characters Note that first space or last space or isn t permitted The defa
5. flow control 4 3 AT Command Set 1 Default Enable flow control The following is the AT command set for the local adaptor in the command mode that is the local adaptor is in the disconnection state All the commands and parameters are case insensitive O l 3 o oz or any available device if ATD Xxxxxxxxxxxx is not executed a ee _ co Disableflow contol Inquire the current setting For security purpose this command is used to specify a unique remote Bluetooth serial adaptor to be connected In the master role the adaptor pairs and connects with the designated remote slave address In the slave mode this command is a filter condition to accept the inquiry of the master device D XXXXXXXXXXXX XXXXXXXXXXXX s a String of 12 hexadecimal digits Restore the status in which the adaptor can connect with any remote address Inquiry the designated address that can be paired and connected g This command is used to specify whether the adaptor echoes characters received from the UART back to the Host in command mode 0 Characters received from the UART will not echo back to the Host E1 Default Characters received from the UART will echo back to the Host E Inquire the current setting 5 6 m This command is used to search for any Bluetooth device in the neighborhood within one minute If any device is found its name and address will be listed O Description sd M Inquir
6. g master mode Link LED steadily on Connection established 3 2 Installation Procedure Step 1 If provided with an external antenna assemble it to the adaptor body Step 2 Plug the adaptor into the COM port of device Step 3 Adjust the slide switch depending on whether the device is a DTE or DCE Step 4 Power the adaptor on Step 5 Configure the adaptor if necessary 4 4 Usage You can reprogram the default settings on the adaptor using HyperTerminal 4 1 HyperTerminal Settings Bits per second 19200 bps baud rate When the device is in Data mode it can be forced back into Command mode while maintaining the connection to the remote device The sequence characters should be with 1000ms guard time Data bit 8 Parity None This command is used to enable disable auto connection feature in master role Stop bit 1 By the way it is used to online switch from command mode to data mode e Flow control H W Note it will cause a reboot when ATOO or ATO1 take effect 4 2 Configuration Online switch from Command mode to Data mode 4 2 1 Configuration Start up 00 Default Automatically connect the adaptor to a device specified by ATD XXXXXXXXXXXX Step 1 Plug the adaptor into a COM port of PC Step 2 Power the adaptor on Disable auto connection feature After it is executed you need to execute ATA Step 3 Create a HyperTerminal file to manually connect a remote device Step 4 On the interface
7. of the new HyperTerminal file click Properties button Inquire the current setting Step 5 Select the COM port where the adaptor is attached to your PC and set the l l This command is used to establish a connection It is available only when the adaptor is in the manual master role port properties as described in section 4 1 HyperTerminal Settings Step 6 Input A in the file and then press lt Enter gt Connect the adaptor to a specified Bluetooth device Itis available only when ATD xxxxxxxxxxxx is executed If no echo that is nothing is displaye d when you input A it indicates that the baud rate is incorrect Ensure that the baud rate is 19200bps Step 7 hee AT and then Hae pall OK Sea h ix F A1 A8 Connect the adaptor to a device in the neighborhood found through ATF necessary reprogram the configuration of adaptor using AT commands For related commands please refer to section 4 3 AT Command Set This command is used to display the Bluetooth address of the local adaptor Inquire the Bluetooth address of the local adaptor 4 2 2 Master Role Configuration You can use ATRO to change the adaptor to the master role This command enable or disable flow control signals CTS RTS of the UART port Note the setting is not affected by ATZO but will cause a reboot When the adaptor is in the master role you can use ATO1 to manually set up aconnection and ATF to find the device you want to connect 0 Disable
8. ult name is Serial Adaptor N XXXXXX XXXXXx is a character string with a maximal length of 16 Inquire the name of the local adaptor i il Be The command is used to decide whether result messages are prompted when AT commands are executed The result messages are OK ERROR for command execution or CONNECT DISCONNECT for connection status top bit KO detaut 0 default Prompt result messages 1 Rit k1 Twostopbits S ef Two stop bits Q Inquire the current setting a7 This command is used to specify the baud rate of COM port 1200 bps 2400 bps cleared 4800 bps Set the adaptor to the master role 9600 bps R1 default Set the adaptor to the slave role L2 default 19200 bps R Inquire the current role of the adaptor 38400 bps Disable Enable escape sequence t4 Jleeoobs SSS E 4 OIL OE X0 Disable escape sequence CE 115200 bps X1 default Enabl nce 2304 Kops EAEE Inquire the current baud rate Inquire the current setting vo This command is used to specify parity bit setting of COM port This command is used to restore the default settings and reboot MO default None parity bit Restore the default settings 7 Not prompt result messages Inquire the current setting This command is used to specify whether the adaptor is in the master or slave role If the device role is changed the adaptor will reboot and all paired records will be j li
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