![](/media/cache/profiles/DalekSelfie2.jpg.50x50_q85.jpg)
mbed based IoT Gateway More details http://blog.thiseldo.co.uk/wp-filez/IoTGateway.pdf
Dependencies: NetServices FatFileSystem csv_parser mbed MQTTClient RF12B DNSResolver SDFileSystem
Diff: Payloads/PayloadDef.h
- Revision:
- 0:a29a0225f203
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Payloads/PayloadDef.h Mon Apr 02 22:05:20 2012 +0000 @@ -0,0 +1,95 @@ +/** IoT Gateway RFM12B payload definition + * + * @author Andrew Lindsay + * + * @section LICENSE + * + * Copyright (c) 2012 Andrew Lindsay (andrew [at] thiseldo [dot] co [dot] uk) + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + * + * @section DESCRIPTION + * + * + */ + +#ifndef _PAYLOADDEF_H +#define _PAYLOADDEF_H + +#include "mbed.h" + +#define MAX_PAYLOAD_SIZE 76 + +/** Payload definition base class + */ +class PayloadDef { +public: + /** Default Constructor + */ + PayloadDef(); + + /** Alternative constructor for passing payload + * + * @param pptr Pointer to payload data + * @param plen Length of paylod data + */ + PayloadDef( uint8_t *pptr, short plen ); + + /** Get the number of readings in a payload + * + * @returns the number of readings found in payload so they can be read + */ + virtual short numReadings() = 0; + + /** Get a single reading from the payload + * Other payload definition classes may provide alternative versions for bytes, words or strings + * + * @param readingNum The number of the reading, starts from 0 upto number of readings in payload + * @returns Integer representation of reading + */ + virtual int reading( short readingNum ) = 0; + + /** Get the sensor ID for the specified reading within the payload + * Other payload definition classes may provide alternative versions for bytes, words or strings + * + * @param readingNum The number of the reading, starts from 0 upto number of readings in payload + * @returns Integer representation of reading + */ + virtual short sensorId( short readingNum ) = 0; + + /** Get the node ID from the data header + * + * @returns Single byte Node ID from the received header data + */ + uint8_t nodeId(); + + /** Get the group ID from the data header + * + * @returns Single byte Group ID from the received header data + */ + uint8_t groupId(); + +protected: + short readingCount; + short payloadLen; + uint8_t payloadBuffer[MAX_PAYLOAD_SIZE]; + +}; + +#endif /* _PAYLOADDEF_H */ \ No newline at end of file