gabrio gabrio / Mbed 2 deprecated TRANSMITTER

Reads analog A0 AND A2 and transmit them thorugh lora (no encryption)

Dependencies:   BufferedSerial SX1276GenericLib mbed

Transmitter/Transmitter.cpp@5:2ac61718bfd8, 2018-05-31 (annotated)

Committer:
gabrio
Date:
Thu May 31 13:13:41 2018 +0000
Revision:
5:2ac61718bfd8
Parent:
4:182eacdfbf7d 

        

        
Who changed what in which revision?

        

            
                
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/*





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 *





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 * Author Be-P, Gabrio Tognozzi





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 * Pervasive systems 2018





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 *





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 * Credits:





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 * Copyright (c) 2017 Helmut Tschemernjak





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 * 30826 Garbsen (Hannover) Germany





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 *





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 * Licensed under the Apache License, Version 2.0);





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 */





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#include "mbed.h"





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#include "PinMap.h"





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#include "Transmitter.h"





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#include "sx1276-mbed-hal.h"





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#include "main.h"





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#ifdef FEATURE_LORA





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/* Set this flag to '1' to display debug messages on the console */





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#define DEBUG_MESSAGE   1





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/* Set this flag to '1' to use the LoRa modulation or to '0' to use FSK modulation */





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#define USE_MODEM_LORA  1





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#define USE_MODEM_FSK   !USE_MODEM_LORA





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#define RF_FREQUENCY            RF_FREQUENCY_868_1  // Hz





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#define TX_OUTPUT_POWER         14                  // 14 dBm





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#if USE_MODEM_LORA == 1





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#define LORA_BANDWIDTH          125000  // LoRa default, details in SX1276::BandwidthMap





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#define LORA_SPREADING_FACTOR   LORA_SF7





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#define LORA_CODINGRATE         LORA_ERROR_CODING_RATE_4_5





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#define LORA_PREAMBLE_LENGTH    8       // Same for Tx and Rx





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#define LORA_SYMBOL_TIMEOUT     5       // Symbols





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#define LORA_FIX_LENGTH_PAYLOAD_ON  false





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#define LORA_FHSS_ENABLED       false  





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#define LORA_NB_SYMB_HOP        4     





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#define LORA_IQ_INVERSION_ON    false





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#define LORA_CRC_ENABLED        true





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#elif USE_MODEM_FSK == 1





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#define FSK_FDEV                25000     // Hz





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#define FSK_DATARATE            19200     // bps





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#define FSK_BANDWIDTH           50000     // Hz





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#define FSK_AFC_BANDWIDTH       83333     // Hz





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#define FSK_PREAMBLE_LENGTH     5         // Same for Tx and Rx





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#define FSK_FIX_LENGTH_PAYLOAD_ON   false





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#define FSK_CRC_ENABLED         true





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#else





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    #error "Please define a modem in the compiler options."





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#endif 





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#define RX_TIMEOUT_VALUE    3500	// in ms





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//#define BUFFER_SIZE       32        // Define the payload size here





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#define BUFFER_SIZE         64        // Define the payload size here





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/*





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 *  Global variables declarations





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 */





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typedef enum





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{





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    LOWPOWER = 0,





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    IDLE,





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    RX,





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    RX_TIMEOUT,





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    RX_ERROR,





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    TX,





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    TX_TIMEOUT,





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    CAD,





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    CAD_DONE





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} AppStates_t;





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volatile AppStates_t State = LOWPOWER;





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/*!





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 * Radio events function pointer





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 */





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static RadioEvents_t RadioEvents;





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/*





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 *  Global variables declarations





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 */





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SX1276Generic *Radio;





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uint16_t BufferSize = BUFFER_SIZE;





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uint8_t *Buffer;





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DigitalOut *led3;





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AnalogIn analog0(A0);





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AnalogIn analog2(A2);





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int Transmitter() 





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{





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    Buffer = new  uint8_t[BUFFER_SIZE];





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#ifdef B_L072Z_LRWAN1_LORA





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    Radio = new SX1276Generic(NULL, MURATA_SX1276,





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    		LORA_SPI_MOSI, LORA_SPI_MISO, LORA_SPI_SCLK, LORA_CS, LORA_RESET,





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        	LORA_DIO0, LORA_DIO1, LORA_DIO2, LORA_DIO3, LORA_DIO4, LORA_DIO5,





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        	LORA_ANT_RX, LORA_ANT_TX, LORA_ANT_BOOST, LORA_TCXO);





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#else // RFM95





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    Radio = new SX1276Generic(NULL, RFM95_SX1276,





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			LORA_SPI_MOSI, LORA_SPI_MISO, LORA_SPI_SCLK, LORA_CS, LORA_RESET,





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            LORA_DIO0, LORA_DIO1, LORA_DIO2, LORA_DIO3, LORA_DIO4, LORA_DIO5);





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#endif





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    dprintf("Transmitter Application, Be-P" );





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    dprintf("Freqency: %.1f", (double)RF_FREQUENCY/1000000.0);





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    dprintf("TXPower: %d dBm",  TX_OUTPUT_POWER);





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#if USE_MODEM_LORA == 1





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    dprintf("Bandwidth: %d Hz", LORA_BANDWIDTH);





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    dprintf("Spreading factor: SF%d", LORA_SPREADING_FACTOR);





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#elif USE_MODEM_FSK == 1





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    dprintf("Bandwidth: %d kHz",  FSK_BANDWIDTH);





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    dprintf("Baudrate: %d", FSK_DATARATE);





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#endif





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    // Initialize Radio driver





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    RadioEvents.TxDone = OnTxDone;





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    RadioEvents.RxDone = OnRxDone;





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    RadioEvents.RxError = OnRxError;





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    RadioEvents.TxTimeout = OnTxTimeout;





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    RadioEvents.RxTimeout = OnRxTimeout;    





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    if (Radio->Init( &RadioEvents ) == false) {





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        while(1) {





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        	dprintf("Radio could not be detected!");





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        	wait( 1 );





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        }





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    }





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    switch(Radio->DetectBoardType()) {





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        case SX1276MB1LAS:





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            if (DEBUG_MESSAGE)





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                dprintf(" > Board Type: SX1276MB1LAS <");





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            break;





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        case SX1276MB1MAS:





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            if (DEBUG_MESSAGE)





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                dprintf(" > Board Type: SX1276MB1LAS <");





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        case MURATA_SX1276:





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            if (DEBUG_MESSAGE)





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            	dprintf(" > Board Type: MURATA_SX1276_STM32L0 <");





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            break;





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        case RFM95_SX1276:





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            if (DEBUG_MESSAGE)





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                dprintf(" > HopeRF RFM95xx <");





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            break;





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        default:





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            dprintf(" > Board Type: unknown <");





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    }





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    Radio->SetChannel(RF_FREQUENCY ); 





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#if USE_MODEM_LORA == 1





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    if (LORA_FHSS_ENABLED)





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        dprintf("             > LORA FHSS Mode <");





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    if (!LORA_FHSS_ENABLED)





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        dprintf("             > LORA Mode <");





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    Radio->SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,





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                         LORA_SPREADING_FACTOR, LORA_CODINGRATE,





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                         LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,





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                         LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP, 





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                         LORA_IQ_INVERSION_ON, 2000 );





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    Radio->SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,





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                         LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,





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                         LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON, 0,





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                         LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP, 





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                         LORA_IQ_INVERSION_ON, true );





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#elif USE_MODEM_FSK == 1





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    dprintf("              > FSK Mode <");





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    Radio->SetTxConfig( MODEM_FSK, TX_OUTPUT_POWER, FSK_FDEV, 0,





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                         FSK_DATARATE, 0,





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                         FSK_PREAMBLE_LENGTH, FSK_FIX_LENGTH_PAYLOAD_ON,





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                         FSK_CRC_ENABLED, 0, 0, 0, 2000 );





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    Radio->SetRxConfig( MODEM_FSK, FSK_BANDWIDTH, FSK_DATARATE,





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                         0, FSK_AFC_BANDWIDTH, FSK_PREAMBLE_LENGTH,





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                         0, FSK_FIX_LENGTH_PAYLOAD_ON, 0, FSK_CRC_ENABLED,





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                         0, 0, false, true );





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#else





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#error "Please define a modem in the compiler options."





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#endif





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    Radio->Rx( RX_TIMEOUT_VALUE );





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    //@START





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    float readed;





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    char readed_tostr[100]={0};





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    while(1){





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    	//ANALOG0 READ AND SEND





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    	int t = snprintf(readed_tostr,sizeof(readed_tostr),"ALGG A0:%f A2:%f",10-analog0.read()*10, (analog2.read()*14.5)-1 );





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    	dprintf("sending:%s",readed_tostr);





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    	Radio->Send(readed_tostr,t);





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    	wait_ms(2000);





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    }





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}





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void OnTxDone(void *radio, void *userThisPtr, void *userData)





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{





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    Radio->Sleep( );





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    State = TX;





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    if (DEBUG_MESSAGE)





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        dprintf("> OnTxDone");





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}





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void OnRxDone(void *radio, void *userThisPtr, void *userData, uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr)





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{





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    Radio->Sleep( );





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    BufferSize = size;





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    memcpy( Buffer, payload, BufferSize );





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    State = RX;





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    if (DEBUG_MESSAGE)





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        dprintf("> OnRxDone: RssiValue=%d dBm, SnrValue=%d", rssi, snr);





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    dump("Data:", payload, size);





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}





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void OnTxTimeout(void *radio, void *userThisPtr, void *userData)





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{





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    *led3 = 0;





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    Radio->Sleep( );





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    State = TX_TIMEOUT;





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    if(DEBUG_MESSAGE)





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        dprintf("> OnTxTimeout");





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}





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void OnRxTimeout(void *radio, void *userThisPtr, void *userData)





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{





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    *led3 = 0;





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    Radio->Sleep( );





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    Buffer[BufferSize-1] = 0;





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    State = RX_TIMEOUT;





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    if (DEBUG_MESSAGE)





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        dprintf("> OnRxTimeout");





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}





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void OnRxError(void *radio, void *userThisPtr, void *userData)





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{





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    Radio->Sleep( );





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    State = RX_ERROR;





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    if (DEBUG_MESSAGE)





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        dprintf("> OnRxError");





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}





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#endif