Difference between revisions of "Component: Bluetooth (EB024, Generic AT) (Wireless)"

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==Bluetooth (EB024, Generic AT) component==
 
==Bluetooth (EB024, Generic AT) component==
 
Low level routines for controlling a standard AT Bluetooth interface. Also available in the form of the EB024 Bluetooth E-block.
 
Low level routines for controlling a standard AT Bluetooth interface. Also available in the form of the EB024 Bluetooth E-block.
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==Component Source Code==
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Please click here to download the component source project: [https://www.flowcode.co.uk/wiki/componentsource/FC_Comp_Source_Bluetooth.fcfx FC_Comp_Source_Bluetooth.fcfx]
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Please click here to view the component source code (Beta): [https://www.flowcode.co.uk/FlowchartView/?wfile=componentsource/FC_Comp_Source_Bluetooth.fcfx FC_Comp_Source_Bluetooth.fcfx]
  
 
==Detailed description==
 
==Detailed description==
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==Examples==
 
==Examples==
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[[File:ConnectToMAC.jpg]]
 
[[File:ConnectToMAC.jpg]]
  
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==Downloadable macro reference==
 
  
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==Macro reference==
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===CreateCommand===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''StringRead'''
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''CreateCommand'''
 
|-
 
|-
−
| colspan="2" | Returns the ASCII value of character idx of the Response string. 
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| colspan="2" | Adds a single characters to the end of the Command buffer. Returns 1 for success in adding the characters to the buffer. Returns 0 for errors, including Buffer overflow. 
 
|-
 
|-
 
|-
 
|-
 
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
 
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
−
| width="90%" | idx
+
| width="90%" | Character
 
|-
 
|-
−
| colspan="2" | Needs to be a equal to or less than the string length of the response in order to retrieve a valid character. 
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| colspan="2" | ASCII value or single character, 
 
|-
 
|-
 
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
 
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
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===CreateCommandString===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''SendScript'''
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''CreateCommandString'''
 
|-
 
|-
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| colspan="2" | Sends Script idx  Note that the general property Number of Scripts needs to be set so that it allows the scripts to be accessed and sent. Returns 0 for success and 1 for error  
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| colspan="2" | Assigns a string of characters to the Command buffer. Returns 1 for success in adding the characters to the buffer. Returns 0 for errors, including Buffer overflow. 
 
|-
 
|-
 
|-
 
|-
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| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
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| width="10%" align="center" | [[File:Fc9-string-icon.png]] - STRING
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| width="90%" | idx
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| width="90%" | Data
 
|-
 
|-
−
| colspan="2" | Refers to the Script page to send (1-4). 
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| colspan="2" |  
 
|-
 
|-
 
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
 
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
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===Initialise===
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{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
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|-
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| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
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|-
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| colspan="2" | Required to be used whenever the Bluetooth component is used in a program. Initialises the Bluetooth component ready for use. 
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|-
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|-
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| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
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| width="90%" style="border-top: 2px solid #000;" | ''Return''
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|}
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===SendCommand===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
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===SendScript===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''CreateCommandString'''
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''SendScript'''
 
|-
 
|-
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| colspan="2" | Assigns a string of characters to the Command buffer. Returns 1 for success in adding the characters to the buffer. Returns 0 for errors, including Buffer overflow. 
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| colspan="2" | Sends Script idx  Note that the general property Number of Scripts needs to be set so that it allows the scripts to be accessed and sent. Returns 0 for success and 1 for error  
 
|-
 
|-
 
|-
 
|-
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| width="10%" align="center" | [[File:Fc9-string-icon.png]] - STRING
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| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
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| width="90%" | Data
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| width="90%" | idx
 
|-
 
|-
−
| colspan="2" |  
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| colspan="2" | Refers to the Script page to send (1-4). 
 
|-
 
|-
 
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
 
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
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===Send_byte===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''StringReceive'''
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Send_byte'''
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|-
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| colspan="2" |  
 
|-
 
|-
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| colspan="2" | Checks for a response string. Returns the length of the response string if one is present otherwise returns 0.  
 
 
|-
 
|-
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| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
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| width="90%" | ByteVal
 
|-
 
|-
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| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
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| colspan="2" |  
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|-
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| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
|}
 
|}
  
  
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===StringRead===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''CreateCommand'''
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''StringRead'''
 
|-
 
|-
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| colspan="2" | Adds a single characters to the end of the Command buffer. Returns 1 for success in adding the characters to the buffer. Returns 0 for errors, including Buffer overflow. 
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| colspan="2" | Returns the ASCII value of character idx of the Response string. 
 
|-
 
|-
 
|-
 
|-
 
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
 
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
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| width="90%" | Character
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| width="90%" | idx
 
|-
 
|-
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| colspan="2" | ASCII value or single character, 
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| colspan="2" | Needs to be a equal to or less than the string length of the response in order to retrieve a valid character. 
 
|-
 
|-
 
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
 
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
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===StringReceive===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Send_byte'''
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| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''StringReceive'''
 
|-
 
|-
−
| colspan="2" |  
+
| colspan="2" | Checks for a response string. Returns the length of the response string if one is present otherwise returns 0.  
 
|-
 
|-
 
|-
 
|-
−
| width="10%" align="center" | [[File:Fc9-u8-icon.png]] - BYTE
+
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-u8-icon.png]] - BYTE
−
| width="90%" | ByteVal
 
−
|-
 
−
| colspan="2" |  
 
−
|-
 
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
 
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
|}
 
|}
  
  
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===WaitForResponse===
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
|-
 
|-
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| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
|}
 
|}
−
 
−
 
−
{| class="wikitable" style="width:60%; background-color:#FFFFFF;"
 
−
|-
 
−
| width="10%" align="center" style="background-color:#D8C9D8;" align="center" | [[File:Fc9-comp-macro.png]]
 
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Initialise'''
 
−
|-
 
−
| colspan="2" | Required to be used whenever the Bluetooth component is used in a program. Initialises the Bluetooth component ready for use. 
 
−
|-
 
−
|-
 
−
| width="10%" align="center" style="border-top: 2px solid #000;" | [[File:Fc9-void-icon.png]] - VOID
 
−
| width="90%" style="border-top: 2px solid #000;" | ''Return''
 
−
|}
 
−
 
−
 
  
  
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| colspan="2" | Data to send for script 0, each command should be terminated with a carriage return 
 
| colspan="2" | Data to send for script 0, each command should be terminated with a carriage return 
 
|-
 
|-
−
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-conn-icon.png]]
+
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Connections'''
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| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Connections
 
|-
 
|-
 
|-
 
|-
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| colspan="2" |  
 
| colspan="2" |  
 
|-
 
|-
−
| width="10%" align="center" style="background-color:#D8C9D8;" | [[File:Fc9-conn-icon.png]]
+
| width="10%" align="center" style="background-color:#EAE1EA;" | [[File:Fc9-conn-icon.png]]
−
| width="90%" style="background-color:#D8C9D8; color:#4B008D;" | '''Simulations'''
+
| width="90%" style="background-color:#EAE1EA; color:#4B008D;" | Simulation
 
|-
 
|-
 
|-
 
|-

Latest revision as of 13:08, 7 February 2023

Author Matrix Ltd.
Version 2.0
Category Wireless


Bluetooth (EB024, Generic AT) component

Low level routines for controlling a standard AT Bluetooth interface. Also available in the form of the EB024 Bluetooth E-block.

Component Source Code

Please click here to download the component source project: FC_Comp_Source_Bluetooth.fcfx

Please click here to view the component source code (Beta): FC_Comp_Source_Bluetooth.fcfx

Detailed description

No detailed description exists yet for this component

Examples

Making a device discoverable

Example program to set up the Bluetooth module to be discoverable with a pair key. Any data received is then output onto the LCD component. You can connect to the Bluetooth device using a PC with Bluetooth connection and using software such as Flowcode 6, RealTerm or HyperTerminal. Alternatively you can connect using a smart phone running a terminal emulator app or via another embedded Bluetooth board. FC6 Icon.png Bluetooth Discover Script 1 contains the AT commands to setup the Bluetooth device to be discoverable with pair key "1234".

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Searching for a device

Example program to scan for local discoverable Bluetooth devices. For each device found the MAC address is displayed on to the LCD. FC6 Icon.png Bluetooth Inquiry

Connecting to a device

Example program to connect to a specific Bluetooth device address and send data to the device. FC6 Icon.png Bluetooth Connect The device MAC address is specified using the "CreateCommandString" and "SendCommand" macros.

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Macro reference

CreateCommand

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 CreateCommand
Adds a single characters to the end of the Command buffer. Returns 1 for success in adding the characters to the buffer. Returns 0 for errors, including Buffer overflow. 
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- BYTE 		Character
ASCII value or single character, 
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- BYTE 		Return


CreateCommandString

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 CreateCommandString
Assigns a string of characters to the Command buffer. Returns 1 for success in adding the characters to the buffer. Returns 0 for errors, including Buffer overflow. 
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- STRING 		Data
 
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- BYTE 		Return


Initialise

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 Initialise
Required to be used whenever the Bluetooth component is used in a program. Initialises the Bluetooth component ready for use. 
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- VOID 		Return


SendCommand

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 SendCommand
Sends the command buffer. Returns 1 for success in sending the command. Returns 0 for errors. 
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- BYTE 		ExpectEcho
Remote module automatically echos back data: 1 = On (Expect echo), 0 = off 
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- BYTE 		SendCR
Automatically adds \n to the end of the command data: 1 = append CR, 0 = no CR. 
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- BYTE 		Return


SendScript

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 SendScript
Sends Script idx Note that the general property Number of Scripts needs to be set so that it allows the scripts to be accessed and sent. Returns 0 for success and 1 for error  
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- BYTE 		idx
Refers to the Script page to send (1-4). 
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- BYTE 		Return


Send_byte

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 Send_byte
 
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- BYTE 		ByteVal
 
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- VOID 		Return


StringRead

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 StringRead
Returns the ASCII value of character idx of the Response string. 
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- BYTE 		idx
Needs to be a equal to or less than the string length of the response in order to retrieve a valid character. 
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- BYTE 		Return


StringReceive

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 StringReceive
Checks for a response string. Returns the length of the response string if one is present otherwise returns 0.  
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- BYTE 		Return


WaitForResponse

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 WaitForResponse
Waits for a response message of type response_code for timeout ms. Returns: 0 for a Response of type response_code 255 (0xFF) for a timeout or invalid response Response string length for any Response not of type response_code 
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- BYTE 		response_code
1:OK / 2:ERROR / 3:CONNECT / 4:NO CARRIER / 5:AUDIO / 6:PAIR / 7:RING 
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- BYTE 		timeout
The timeout value will need to set to allow sufficient time for the response to arrive. 
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- BYTE 		Return


Property reference

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 Properties
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 Command Buffer Size
Maximum number of bytes that can be stored in the outgoing command buffer. 
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 Response Buffer Size
Maximum number of bytes that can be stored in the incoming response buffer. 
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 Script Count
Controls how many AT scripts are stored into non-volatile memory 
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 Script 1
Data to send for script 0, each command should be terminated with a carriage return 
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 Connections
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 Channel
UART Channel selector Software channels are bit banged using generic I/O pins but are not as reliable as hardware channels. Hardware channels use the selected peripheral on-board the target microcontroller. 
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 TX
Pin to be used for Transmit data 
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 RX
Pin to be used for Receive data 
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 Use Flow Control
Flow Control (Handshake) enable or disable. On: Two I/O pins are used to control the flow of data in and out of the device. Off: Flow control is disabled. 
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 Baud Options
Baud rate option selector 
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 Baud Rate
 
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 Simulation
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 Console Columns
Number of characters that can be displayed on a single line of the console. 
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 Console Data
Selects if the console data is automatically generated or not 
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 Scope Traces
Selects if the scope traces are automatically added to the data recorder window or not. Simulation - draws an approximation of the UART data onto the scope trace. ICT - sets up the scope trace for incoming data and adds UART packet decoding at the correct BAUD. 
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 Data Source
Simulation data source used to allow the component to connect to various remote devices Nothing - Simulation data is ignored COM port - Routes the communication data to and from a physical or virtual COM port API - Routes the communication data via a data API component on the Panel. 
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 API
Selects whichAPI component to route the communication data via. Add API components to the panel before they will be available in this list. API components are available from the Comms component category. 
Retrieved from "https://www.flowcode.co.uk/wiki/index.php?title=Component:_Bluetooth_(EB024,_Generic_AT)_(Wireless)&oldid=37810"