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.
Utility/XBeeApiCmdAt.hpp
- Committer:
- johnb
- Date:
- 2014-01-31
- Revision:
- 8:1b48b619d7f6
- Child:
- 11:bfcf1356027b
File content as of revision 8:1b48b619d7f6:
/** @file @brief Class to abstract AT commands send to the XBee API AT commands have the payload: Byte 1 : Frame ID Byte 2 & 3 : AT command Byte 4-n : Parameter Value @author John Bailey @copyright Copyright 2014 John Bailey @section LICENSE Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. */ #if !defined XBEEAPICMDAT_HPP #define XBEEAPICMDAT_HPP #include "XBeeApiFrame.hpp" #include "XBeeDevice.hpp" #include <stdint.h> class XBeeApiCmdAt : public XBeeApiFrameDecoder { protected: bool m_haveHwVer; bool m_haveFwVer; bool m_haveChan; uint16_t m_hwVer; uint16_t m_fwVer; uint8_t m_chan; uint8_t m_chanPend; class XBeeApiCmdAtFirmwareVersionRequest : public XBeeApiFrame { public: XBeeApiCmdAtFirmwareVersionRequest( void ); }; class XBeeApiCmdAtHardwareVersionRequest : public XBeeApiFrame { public: XBeeApiCmdAtHardwareVersionRequest( void ); }; class XBeeApiCmdAtChannelRequest : public XBeeApiFrame { public: XBeeApiCmdAtChannelRequest( void ); }; class XBeeApiCmdAtChannelSet : public XBeeApiFrame { uint8_t m_buffer[ 10 ]; public: XBeeApiCmdAtChannelSet( const uint8_t p_chan ); }; public: XBeeApiCmdAt( ); virtual ~XBeeApiCmdAt( void ) {}; bool requestHardwareVersion( void ); bool requestFirmwareVersion( void ); bool requestChannel( void ); virtual bool getHardwareVersion( uint16_t* const p_ver ); virtual bool getFirmwareVersion( uint16_t* const p_ver ); virtual bool getChannel( uint8_t* const p_chan ); virtual bool setChannel( uint8_t const p_chan ); /* Implement XBeeApiCmdDecoder interface */ virtual bool decodeCallback( const uint8_t* const p_data, size_t p_len ); typedef uint16_t panId_t; typedef uint8_t channel_t; }; class XBeeApiCmdAtBlocking : public XBeeApiCmdAt { protected: uint16_t m_timeout; uint16_t m_slice; /* The following are "shadow" methods which allow access to the methods in the base class which we're overriding. We need these as we need to be able to pass a method pointer (e.g. to getHardwareVersion() ) and there's no way to get a method pointer to the parent class implementation as opposed to the implementation in this class. The joys of polymorphism. e.g. We pass a pointer to method getHardwareVersion(). The function receiving the pointer uses it to make a function call. The actual function that's called is (correctly) the one implemented in this class, however what we actually wanted in this case was to call the implementation in the base class. Using static_cast<> doesn't have any effect and taking the address of XBeeApiCmdAt::getHardwareVersion ends up with XBeeApiCmdAtBlocking::getHardwareVersion being called due to polymorphism. */ bool getHardwareVersionS( uint16_t* const p_ver ); bool getFirmwareVersionS( uint16_t* const p_ver ); bool getChannelS( uint8_t* const p_chan ); public: XBeeApiCmdAtBlocking( const uint16_t p_timeout = 1000, const uint16_t p_slice = 100); virtual ~XBeeApiCmdAtBlocking( void ) {}; /* Implement XBeeApiCmdAt's virtual methods */ virtual bool getHardwareVersion( uint16_t* const p_ver ); virtual bool getFirmwareVersion( uint16_t* const p_ver ); virtual bool getChannel( uint8_t* const p_chan ); virtual bool setChannel( uint8_t const p_chan ); }; #endif