Component: Bluetooth (EB024, Generic AT) (Wireless)

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.

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. Bluetooth Discover Script 1 contains the AT commands to setup the Bluetooth device to be discoverable with pair key "1234".

Error creating thumbnail: Unable to save thumbnail to destination

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. Bluetooth Inquiry

Connecting to a device

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

Error creating thumbnail: Unable to save thumbnail to destination

Downloadable macro reference

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

Error creating thumbnail: Unable to save thumbnail to destination	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
Error creating thumbnail: Unable to save thumbnail to destination - BYTE	idx
Refers to the Script page to send (1-4).
Error creating thumbnail: Unable to save thumbnail to destination - BYTE	Return

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

Error creating thumbnail: Unable to save thumbnail to destination	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.
Error creating thumbnail: Unable to save thumbnail to destination - STRING	Data
Error creating thumbnail: Unable to save thumbnail to destination - BYTE	Return

Error creating thumbnail: Unable to save thumbnail to destination	StringReceive
Checks for a response string. Returns the length of the response string if one is present otherwise returns 0.
Error creating thumbnail: Unable to save thumbnail to destination - BYTE	Return

Error creating thumbnail: Unable to save thumbnail to destination	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.
Error creating thumbnail: Unable to save thumbnail to destination - BYTE	Character
ASCII value or single character,
Error creating thumbnail: Unable to save thumbnail to destination - BYTE	Return

Error creating thumbnail: Unable to save thumbnail to destination	Send_byte
Error creating thumbnail: Unable to save thumbnail to destination - BYTE	ByteVal
Error creating thumbnail: Unable to save thumbnail to destination - VOID	Return

Error creating thumbnail: Unable to save thumbnail to destination	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
Error creating thumbnail: Unable to save thumbnail to destination - BYTE	response_code
1:OK / 2:ERROR / 3:CONNECT / 4:NO CARRIER / 5:AUDIO / 6:PAIR / 7:RING
Error creating thumbnail: Unable to save thumbnail to destination - BYTE	timeout
The timeout value will need to set to allow sufficient time for the response to arrive.
Error creating thumbnail: Unable to save thumbnail to destination - BYTE	Return

Error creating thumbnail: Unable to save thumbnail to destination	Initialise
Required to be used whenever the Bluetooth component is used in a program. Initialises the Bluetooth component ready for use.
Error creating thumbnail: Unable to save thumbnail to destination - VOID	Return

Property reference

Error creating thumbnail: Unable to save thumbnail to destination	Properties
Error creating thumbnail: Unable to save thumbnail to destination	Command Buffer Size
Maximum number of bytes that can be stored in the outgoing command buffer.
Error creating thumbnail: Unable to save thumbnail to destination	Response Buffer Size
Maximum number of bytes that can be stored in the incoming response buffer.
Error creating thumbnail: Unable to save thumbnail to destination	Script Count
Controls how many AT scripts are stored into non-volatile memory
Error creating thumbnail: Unable to save thumbnail to destination	Script 1
Data to send for script 0, each command should be terminated with a carriage return
Error creating thumbnail: Unable to save thumbnail to destination	Connections
Error creating thumbnail: Unable to save thumbnail to destination	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.
Error creating thumbnail: Unable to save thumbnail to destination	TX
Pin to be used for Transmit data
Error creating thumbnail: Unable to save thumbnail to destination	RX
Pin to be used for Receive data
Error creating thumbnail: Unable to save thumbnail to destination	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.
Error creating thumbnail: Unable to save thumbnail to destination	Baud Options
Baud rate option selector
Error creating thumbnail: Unable to save thumbnail to destination	Baud Rate
Error creating thumbnail: Unable to save thumbnail to destination	Simulations
Error creating thumbnail: Unable to save thumbnail to destination	Console Columns
Number of characters that can be displayed on a single line of the console.
Error creating thumbnail: Unable to save thumbnail to destination	Console Data
Selects if the console data is automatically generated or not
Error creating thumbnail: Unable to save thumbnail to destination	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.
Error creating thumbnail: Unable to save thumbnail to destination	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.
Error creating thumbnail: Unable to save thumbnail to destination	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.