Component: Bluetooth (RN4677) (RN4677) (Wireless)
From Flowcode Help
Jump to navigationJump to search| Author | Matrix Ltd. |
| Version | 1.4 |
| Category | Wireless |
Contents
Bluetooth (RN4677) component
Low level routines for controlling a Microchip RN4677 Bluetooth Module. Also available in the form of the BL0170 Bluetooth E-block. Uses an interrupt to receive characters from the UART and improve reliability, Must be used with a hardware UART channel.
Component Source Code
Please click here to download the component source project: FC_Comp_Source_Bluetooth_RN4677.fcfx
Please click here to view the component source code (Beta): FC_Comp_Source_Bluetooth_RN4677.fcfx
Detailed description
No detailed description exists yet for this component
Examples
No additional examples
Macro reference
ConnectToMAC
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ConnectToMAC |
| Connects to a specific Bluetooth MAC address. Waits up to 5 seconds for connection to be established. Returns 1 if connection was successful. | |
 - STRING
|
MACAddress |
| MAC Address of the Bluetooth Device we wish to connect to | |
 - BOOL
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Return |
EnterCommandMode
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EnterCommandMode |
| Enters command mode allowing commands to be sent using the SendCommand macro. Returns: 0 = No Reply / 1 = Command Mode OK | |
| - BOOL
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Return |
GetMACAddress
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GetMACAddress |
| Gets the local Bluetooth device MAC address. | |
| - STRING
|
Return |
Initialise
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Initialise |
| Sets up the Bluetooth module including: - Enabling the UART - Configuring the module (Name / Key / etc) Returns 1 for OK and 0 for no reply. | |
 - BYTE
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Return |
LeaveCommandMode
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LeaveCommandMode |
| Leaves command mode allowing data to be passed back and forth, | |
 - VOID
|
Return |
ReadString
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ReadString |
| Copies the incoming data from the data string array to a local string variable. | |
| - BYTE
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NumBytes |
| Maximum number of bytes to try and read | |
| - STRING
|
Return |
ReceiveByte
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ReceiveByte |
| Receives a single data byte from the Bluetooth module. 0-255 - Valid Data / 256 signifies no data available. | |
 - UINT
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Timeout |
| Amount of time to wait in milliseconds 0=Wait forever | |
| - UINT
|
Return |
SendByte
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SendByte |
| Sends a single data byte out to the Bluetooth module. | |
| - BYTE
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Data |
| - VOID
|
Return |
SendCommand
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SendCommand |
| Sends a command string to the Bluetooth module. 0 = Command sent ok, 255 = No Reply | |
| - STRING
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Command |
| - BYTE
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SendCR |
| - BYTE
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DiscardReply |
| 0=Do not touch the reply, 1=Wait for reply and remove from buffer | |
| - BYTE
|
Return |
SendString
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SendString |
| Sends a string to the Bluetooth module. | |
| - STRING
|
Text |
| - BYTE
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SendCR |
| - VOID
|
Return |
WaitForStringValue
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WaitForStringValue |
| Allows us to wait and check for an incoming value. Returns 1 if the string value is found otherwise returns 0. | |
| - STRING
|
Value |
| String value to look for | |
| - UINT
|
Timeout |
| Length of time to wait in milliseconds | |
| - BOOL
|
Return |
Property reference
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Properties |
|
Bluetooth Settings |
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Init Details |
| Allows the Bluetooth device name and key to be automatically assigned on initialise. | |
|
Device Name |
| Sets the friendly name of the Bluetooth device. | |
|
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Pair Key |
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Discoverable |
| Is the Bluetooth module discoverable by default? | |
|
Reply Timeout |
| Specifies the amount of time to wait for incoming data before timing out in milliseconds. Default 2000 = 2 seconds. | |
|
RX Buffer Size |
| Amount of RAM memory to dedicate to receiving responses and incoming data from the BT module. Default 40 | |
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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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Baud Options |
| Baud rate option selector | |
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Baud Rate |
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TX |
| Pin to be used for Transmit data | |
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TX Remap Pin |
| Allows the hardware transmit pin to be configured from a list of available pins based on your target device, | |
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RX |
| Pin to be used for Receive data | |
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RX Remap Pin |
| Allows the hardware receive pin to be configured from a list of available pins based on your target device, | |
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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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Reset Pin |
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Simulation |
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Simulate Comms |
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Simulation |
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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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Console Data |
| Selects if the console data is automatically generated or not | |
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Console Columns |
| Number of characters that can be displayed on a single line of the console. | |
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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 Injector - Routes the communication data via a data injector component on the Panel. | |
