background image

Page 15 of 15 pages

EGBT-046S/EGBT-045MS Bluetooth Module

e-Gizmo Mechatronix Central

From Host controller: Set device role as master

 

AT+ROLE=1

É

EGBT-045MS response

 

OK

É

From Host controller: Initialize SPP

 

AT+INIT

É

EGBT-045MS response

 

OK

É

From Host controller: Set inquire mode as RSSI, look for 9 devices, 

and 48 as timeout

 

AT+INQM=1,9,48

É

EGBT-045MS response

 

OK

É

From Host controller: Start Device Discovery

 

AT+INQ

É

EGBT-045MS response (sample only, actual report will vary)

 

+INQ:101D:C0:2E7B54,5A0204,7FFF

É

 

+INQ:25:48:21AD1A,5A020C,7FFF

É

 

OK

É

In this example, EGBT-045MS found only two discover-
able devices. It will quit searching after the timeout time 
specified by the AT+INQM command or if the number 
of discovered devices equals the number of specified 
devices.

30. Cancel Search for Discoverable Devices

COMMAND

RESPONSE

AT+INQC

É

OK

É

AT+INQ can be stopped at anytime by executing this 
command.

31. Device Pairing

COMMAND

RESPONSE

AT+PAIR=<addr>,<timeout>

É

OK

É

 / FAIL

É

where  <addr> = 48 bit bluetooth address 
 

 

   in NAP,UAP,LAP format

 

<timeout> 

= Timeout time in sec

32. Connect to a Remote Device

COMMAND

RESPONSE

AT+LINK=<addr>

É

OK

É

 / FAIL

É

where  <addr> = 48 bit bluetooth address 
 

 

   in NAP,UAP,LAP format

33. Disconnect from a Remote Device

COMMAND

RESPONSE

AT+DISC

É

+DISC:<results>

É

where 
<results> = Disconnection results, any one of the follow-
ing:
 

SUCCESS

 

LINK_LOSS

 

NO_SLC

 

TIMEOUT

 

ERROR

34. Enter Energy Saving mode

COMMAND

RESPONSE

AT+ENSNIFF=<addr>

É

OK 

É

where  <addr> = 48 bit bluetooth address 
 

 

   in NAP,UAP,LAP format

35. Exit Energy Saving mode

COMMAND

RESPONSE

AT+EXSNIFF=<addr>

É

OK

É

where  <addr> = 48 bit bluetooth address 
 

 

   in NAP,UAP,LAP format

 

Summary of Contents for EGBT-045MS

Page 1: ...ulted in a huge drop in prices of these specialty Bluetooth modules benefiting us experimenters and hobbyists EGBT 045MS and EGBT 046S are generic Blue tooth Modules loaded with SPP firmware for UART...

Page 2: ...e valid 5V TTL range hence can be connected directly to the UART RXD of the 5V microcontroller host EGBT RXD and inputs however are not 5V tolerant and can be damaged by 5V level logic go ing in Some...

Page 3: ...ing example with a 3v3 host microcontroller The 470R resistor and LED are for status indication and may be omitted if not needed Figure 3 EGBT 046S RX input is not 5V tolerant A schottky diode connect...

Page 4: ...commands Any changes made will be retained even after power is removed from the EGBT 046S hence device con figuration setup must not be repeated unless new changes need to be made You can do configura...

Page 5: ...d rate to these values connection to a PC COM port will no longer be possible Use of USB to Serial converter cable that can work at higher bauds may be necessary to re establish a connection Prolific...

Page 6: ...rammable I O 29 PIO6 User programmable I O 30 PIO7 User programmable I O 33 PIO10 User programmable I O 31 LED1 LED Status Indicator 32 LED2 LED Status Indicator 34 CMD Command Mode EGBT 045MS PIN CON...

Page 7: ...nd may be omitted if not needed The microcontroller can switch the EGBT 045MS between command mode and data mode at any time by setting the CMD pin accordingly Figure 8 EGBT 045MS RX input is not 5V t...

Page 8: ...ion setup must not be repeated unless new changes need to be made Entering Command Mode EGBT 045MS is put in Command Mode by setting the CMD pin to logic High There is one important point the user sho...

Page 9: ...Most Recently Used Authenti cated Device 27 AT STATE Query Current Status of the Device 28 AT INIT Initialize SPP Profile 29 AT INQ Query Nearby Discoverable Devices 30 AT INQC Cancel Search for Disc...

Page 10: ...ontroller AT ADDR EGBT 045MS Response ADDR 11 6 230154 OK Bluetooth Address is 11 06 23 01 54 6 Query Set Device Name COMMAND RESPONSE AT NAME NAME name OK AT NAME name OK where name Device Name 31 ch...

Page 11: ...IAC IAC iac OK AT IAC iac OK FAIL where iac Inquire Access Code 9e8b33 default value 11 Query Set Inquire Access Mode COMMAND RESPONSE AT INQM INQM inq1 inq2 inq3 OK AT INQM inq1 inq2 inq3 OK FAIL whe...

Page 12: ...Set Binding Bluetooth Address COMMAND RESPONSE AT BIND BIND addr OK AT BIND addr OK where addr 48 bit bluetooth address in NAP UAP LAP format Example Bind with Bluetooth device having address 00 02 7...

Page 13: ...01 0100 0100 In this example the PIO are previously set in command 18 with PIO2 and PIO6 set The returned value also shows reserved bits 11 and 8 set by the system 20 Query Set Scanning Parameters COM...

Page 14: ...response if device is not in the authenticated list 25 Query Total Number of Device from Authenti cated Device List COMMAND RESPONSE AT ADCN ADCN total OK where total total number of devices in the au...

Page 15: ...of discovered devices equals the number of specified devices 30 Cancel Search for Discoverable Devices COMMAND RESPONSE AT INQC OK AT INQ can be stopped at anytime by executing this command 31 Device...

Reviews: