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hg
Dependencies: LoRaTransmitter mbed BME280 SX1272Lib
main.cpp
- Committer:
- aizakharov
- Date:
- 2022-06-11
- Revision:
- 3:4e51739d3a97
- Parent:
- 1:30ce00fbab55
File content as of revision 3:4e51739d3a97:
#include "mbed.h" #include "main.h" #include "sx1272-hal.h" #include "debug.h" #include "BME280.h" /* Set this flag to '1' to display debug messages on the console */ #define DEBUG_MESSAGE 1 /* Set this flag to '1' to use the LoRa modulation or to '0' to use FSK modulation */ #define USE_MODEM_LORA 1 #define USE_MODEM_FSK !USE_MODEM_LORA #define RF_FREQUENCY 868000000 // Hz #define TX_OUTPUT_POWER 14 // 14 dBm #if USE_MODEM_LORA == 1 #define LORA_BANDWIDTH 2 // [0: 125 kHz, // 1: 250 kHz, // 2: 500 kHz, // 3: Reserved] #define LORA_SPREADING_FACTOR 7 // [SF7..SF12] #define LORA_CODINGRATE 1 // [1: 4/5, // 2: 4/6, // 3: 4/7, // 4: 4/8] #define LORA_PREAMBLE_LENGTH 8 // Same for Tx and Rx #define LORA_SYMBOL_TIMEOUT 5 // Symbols #define LORA_FIX_LENGTH_PAYLOAD_ON false #define LORA_FHSS_ENABLED false #define LORA_NB_SYMB_HOP 4 #define LORA_IQ_INVERSION_ON false #define LORA_CRC_ENABLED true #elif USE_MODEM_FSK == 1 #define FSK_FDEV 25000 // Hz #define FSK_DATARATE 19200 // bps #define FSK_BANDWIDTH 50000 // Hz #define FSK_AFC_BANDWIDTH 83333 // Hz #define FSK_PREAMBLE_LENGTH 5 // Same for Tx and Rx #define FSK_FIX_LENGTH_PAYLOAD_ON false #define FSK_CRC_ENABLED true #else #error "Please define a modem in the compiler options." #endif #define RX_TIMEOUT_VALUE 35000 // in ms #define BUFFER_SIZE 60 // Define the payload size here #if( defined ( TARGET_KL25Z ) || defined ( TARGET_LPC11U6X ) ) DigitalOut led( LED2 ); #else DigitalOut led( LED1 ); #endif //Serial pc(USBTX, USBRX); // tx, rx AnalogIn ground(A1); BME280 sensor(I2C_SDA, I2C_SCL); Ticker measure; /* * Global variables declarations */ typedef enum { LOWPOWER = 0, IDLE, RX, RX_TIMEOUT, RX_ERROR, TX, TX_TIMEOUT, CAD, CAD_DONE }AppStates_t; volatile AppStates_t State = LOWPOWER; /*! * Radio events function pointer */ static RadioEvents_t RadioEvents; /* * Global variables declarations */ SX1272MB2xAS Radio( NULL ); //const uint8_t Msg[]; uint16_t BufferSize = BUFFER_SIZE; uint8_t Buffer[BUFFER_SIZE]; int16_t RssiValue = 0.0; int8_t SnrValue = 0.0; //float measured_sinus = 0.0; int16_t j = 0; float ground_hum, temperature, pressure, humidity; uint16_t strSize = 0; char str[BUFFER_SIZE]; void meas (void) { ground_hum = ground; printf("Ground humidity is %5.2f%%\n\r", ground_hum*100); printf("%2.2f degC, %04.2f hPa, %2.2f %%\n\r", temperature, pressure, humidity); strSize = sprintf ( str, "%5.2f%%, %5.2f degC, %5.2f hPa, %5.2f %%", ground_hum*100, temperature, pressure, humidity); State = TX; } int main( void ) { //uint8_t i; //bool isMaster = true; debug( "\n\n\r SX1272 Ping Pong Demo Application \n\n\r" ); // Initialize Radio driver RadioEvents.TxDone = OnTxDone; RadioEvents.RxDone = OnRxDone; RadioEvents.RxError = OnRxError; RadioEvents.TxTimeout = OnTxTimeout; RadioEvents.RxTimeout = OnRxTimeout; Radio.Init( &RadioEvents ); // verify the connection with the board while( Radio.Read( REG_VERSION ) == 0x00 ) { debug( "Radio could not be detected!\n\r", NULL ); wait( 1 ); } debug_if( ( DEBUG_MESSAGE & ( Radio.DetectBoardType( ) == SX1272MB2XAS ) ), "\n\r > Board Type: SX1272MB2xAS < \n\r" ); Radio.SetChannel( RF_FREQUENCY ); #if USE_MODEM_LORA == 1 debug_if( LORA_FHSS_ENABLED, "\n\n\r > LORA FHSS Mode < \n\n\r" ); debug_if( !LORA_FHSS_ENABLED, "\n\n\r > LORA Mode < \n\n\r" ); Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH, LORA_SPREADING_FACTOR, LORA_CODINGRATE, LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON, LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP, LORA_IQ_INVERSION_ON, 2000 ); Radio.SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR, LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH, LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON, 0, LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP, LORA_IQ_INVERSION_ON, true ); #elif USE_MODEM_FSK == 1 debug("\n\n\r > FSK Mode < \n\n\r" ); Radio.SetTxConfig( MODEM_FSK, TX_OUTPUT_POWER, FSK_FDEV, 0, FSK_DATARATE, 0, FSK_PREAMBLE_LENGTH, FSK_FIX_LENGTH_PAYLOAD_ON, FSK_CRC_ENABLED, 0, 0, 0, 2000 ); Radio.SetRxConfig( MODEM_FSK, FSK_BANDWIDTH, FSK_DATARATE, 0, FSK_AFC_BANDWIDTH, FSK_PREAMBLE_LENGTH, 0, FSK_FIX_LENGTH_PAYLOAD_ON, 0, FSK_CRC_ENABLED, 0, 0, false, true ); #else #error "Please define a modem in the compiler options." #endif //debug_if( DEBUG_MESSAGE, "Starting Ping-Pong loop\r\n" ); led = 0; //Radio.Rx( RX_TIMEOUT_VALUE ); //int n = 0; measure.attach(&meas, 5); while( 1 ) { switch( State ) { case RX: //Radio.Rx( RX_TIMEOUT_VALUE ); State = LOWPOWER; break; case TX: strcpy(( char* )Buffer, ( char* ) str); Radio.Send((uint8_t *) Buffer, BufferSize ); //Radio.Rx( RX_TIMEOUT_VALUE ); State = LOWPOWER; break; case RX_TIMEOUT: Radio.Rx( RX_TIMEOUT_VALUE ); State = LOWPOWER; break; case RX_ERROR: Radio.Rx( RX_TIMEOUT_VALUE ); State = LOWPOWER; break; case TX_TIMEOUT: Radio.Rx( RX_TIMEOUT_VALUE ); State = LOWPOWER; break; case LOWPOWER: break; default: State = LOWPOWER; break; } temperature = sensor.getTemperature(); pressure = sensor.getPressure(); humidity = sensor.getHumidity(); wait(5); } } void OnTxDone( void ) { Radio.Sleep( ); State = TX; debug_if( DEBUG_MESSAGE, "\r\n> OnTxDone\n\r" ); } void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr ) { Radio.Sleep( ); BufferSize = size; memcpy( Buffer, payload, BufferSize ); RssiValue = rssi; SnrValue = snr; State = RX; debug_if( DEBUG_MESSAGE, "\r\n> OnRxDone\n\r" ); } void OnTxTimeout( void ) { Radio.Sleep( ); State = TX_TIMEOUT; debug_if( DEBUG_MESSAGE, "\r\n> OnTxTimeout\n\r" ); } void OnRxTimeout( void ) { Radio.Sleep( ); Buffer[BufferSize] = 0; State = RX_TIMEOUT; debug_if( DEBUG_MESSAGE, "\r\n> OnRxTimeout\n\r" ); } void OnRxError( void ) { Radio.Sleep( ); State = RX_ERROR; debug_if( DEBUG_MESSAGE, "\r\n> OnRxError\n\r" ); }