API for communicating with XBee devices.

Dependencies:   CircularBuffer FixedLengthList

Dependents:   XBeeApiTest XBeeApiSimpleATCmdsExample XBeeApiBroadcastExample XBeeApiBroadcastExampleRTOS ... more

Overview

XBeeApi is intended to be a library for providing a high-level API interface to the XBee - for example getChannel() and setChannel(2) methods rather than needing to send( "ATCH" ) and send( "ATCH 2" ) - and then de-code the responses.

See the notebook page here for a description of how the API works & some details on the various classes.

Features:

  • Support for transmission & reception of data packets
  • Support for reading & changing settings
  • Support for "Remote AT" interface to access settings & I/O channels on remote XBees
  • XBeeApi should work if you're using mbed-rtos, though it is not currently threadsafe. Take a look at the XBeeApiBroadcastExampleRTOS example if you're including mbed-rtos.

Example Programs

There are also example programs available:

Transmit

Import programXBeeApiSimpleBroadcastExample

Simple example of how to use XBeeApi - set up the XBee, configure P2P networking then transmit a frame.

Import programXBeeApiBroadcastExample

Example for XBeeAPI; a little more involved than XBeeApiSimpleBroadcastExample with report on failure to set up the XBee and on the transmit status of the message.

Import programXBeeApiBroadcastExampleRTOS

Example of using the XBeeApi library to broadcast a message, based on XBeeApiBroadcastExample. This example shows how to use the library when using mbed-rtos. Before compiling you must open "XbeeApi\Config\XBeeApiCfg.hpp" and change the '#if 0' to '#if 1' on the line above the comment reading "Use RTOS features to make XBeeApi threadsafe"

Settings/Status

Import programXBeeApiSimpleATCmdsExample

Simple example of using XBeeApi to send AT-style commands to the XBee

Import programXBeeApiRemoteATCmdsExample

Example of using the XBeeApi library to send AT commands to remote XBee devices in order to read/write settings

Receive

Import programXBeeApiSimpleReceiveExample

Simple example of using XBeeApi to receive data packets via wireless

Import programXBeeApiReceiveCallbackExample

Example of using the XBeeApi library to receive a message via a callback method

Import programXBeeApiReceiveCallbackExampleRTOS

Example of using the XBeeApi library to receive a message via a callback method. This example shows how to use the library when using mbed-rtos. See the comment at the top of main.cpp

Remote I/O

Import programXBeeApiRemoteIOExample

Example of using the XBeeApi library to read inputs on a remote XBee

If you have 2 mbed connected XBees available then you can use XBeeApiSimpleReceiveExample and XBeeApiSimpleBroadcastExample as a pair.

Note that this is still a work in progress! XBeeApiTodoList tracks some of the functionality still to be added.

Revision:
16:8095c43a2a6e
Parent:
15:ff9f12e38f44
Child:
24:2cd1094c4fd7
diff -r ff9f12e38f44 -r 8095c43a2a6e Base/XBeeApiFrame.hpp
--- a/Base/XBeeApiFrame.hpp	Mon Feb 03 23:47:33 2014 +0000
+++ b/Base/XBeeApiFrame.hpp	Tue Feb 04 23:52:50 2014 +0000
@@ -69,6 +69,9 @@
 /** The number of 'overhead' bytes in an API frame (i.e. those not included in the frame payload, namely the start delimiter, 2 length bytes & checksum */
 #define XBEE_API_FRAME_OVERHEAD 4U
 
+/* Forward declare this as XBeeDevice is dependent upon XBeeApiFrameDecoder */
+class XBeeDevice;
+
 /** Class which represents an API frame, exchanged with the XBee.
     This class in itself will not create a valid API frame and needs to be sub-classed.
 */
@@ -93,7 +96,7 @@
         XBeeApiFrame( void );
     
         /** Return the length of the API-specific structure represented by this frame.  i.e. the API frame without the overhead - see XBEE_API_FRAME_OVERHEAD */
-        uint16_t getCmdLen( void ) const;
+        virtual uint16_t getCmdLen( void ) const;
     
         /** Retrieve the API identifier for this frame */
         XBeeApiIdentifier_e getApiId( void ) const;
@@ -117,12 +120,9 @@
                                 byte that is required.
             \param[out] p_buff  Pointer to a pointer to receive the buffer pointer 
             \param[out] p_len   Pointer to receive the length of the data pointed to by *p_buff */
-        virtual void getDataPtr( const uint16_t p_start, const uint8_t**  p_buff, uint16_t* const p_len ) const;
+        virtual void getDataPtr( const uint16_t p_start, const uint8_t**  p_buff, uint16_t* const p_len );
 };
 
-/* Forward declare this as XBeeDevice is dependent upon XBeeApiFrameDecoder */
-class XBeeDevice;
-
 /** Class which acts as a receiver for data from the XBee and takes care of decoding it.
     This class needs to be sub-classed in order to create a valid decoder.
     
@@ -141,7 +141,7 @@
     public:
         
         /** Constructor */
-        XBeeApiFrameDecoder();
+        XBeeApiFrameDecoder( XBeeDevice* const p_device = NULL );
         
         /** Destructor.  Un-registers the decoder from any XBeeDevice object with which it is registered */
         virtual ~XBeeApiFrameDecoder();