Antoine Boisadam
Send DHT11 & SHT10 sensors data through LoRa SX1272 board.
Dependencies: DHT11 SHTx SX1272Lib mbed
Fork of
SX1272-Transmitter
by 
Antoine Boisadam
Diff: main.cpp
- Revision:
- 14:62c3fd006150
- Parent:
- 13:edb9b443c1dd
- Child:
- 15:24dc42e5d7bf
--- a/main.cpp Wed Feb 17 09:17:46 2016 +0000
+++ b/main.cpp Mon Mar 13 10:58:50 2017 +0000
@@ -6,73 +6,46 @@
/* 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 RF_FREQUENCY 868000000 // Hz
+#define TX_OUTPUT_POWER 14 // 14 dBm
- #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 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
+#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
- #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 BUFFER_SIZE 32 // Define the payload size here
-#define RX_TIMEOUT_VALUE 3500000 // in us
-#define BUFFER_SIZE 32 // Define the payload size here
-
-#if( defined ( TARGET_KL25Z ) || defined ( TARGET_LPC11U6X ) )
-DigitalOut led(LED2);
-#else
DigitalOut led(LED1);
-#endif
/*
* Global variables declarations
*/
-typedef enum
-{
+typedef enum {
LOWPOWER = 0,
IDLE,
-
- RX,
- RX_TIMEOUT,
- RX_ERROR,
-
+
TX,
TX_TIMEOUT,
-
+
CAD,
CAD_DONE
-}AppStates_t;
+} AppStates_t;
volatile AppStates_t State = LOWPOWER;
@@ -87,7 +60,6 @@
SX1272MB2xAS Radio( NULL );
const uint8_t PingMsg[] = "PING";
-const uint8_t PongMsg[] = "PONG";
uint16_t BufferSize = BUFFER_SIZE;
uint8_t Buffer[BUFFER_SIZE];
@@ -95,213 +67,51 @@
int16_t RssiValue = 0.0;
int8_t SnrValue = 0.0;
-int main()
+int main()
{
uint8_t i;
- bool isMaster = true;
-
- debug( "\n\n\r SX1272 Ping Pong Demo Application \n\n\r" );
+
+ debug( "\n\n\r iGreenhouse Application - Transmitter \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 )
- {
+ 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
-
+ Radio.SetChannel( RF_FREQUENCY );
+
+
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, 2000000 );
-
- 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
+ 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, 2000000 );
- 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, 2000000 );
-
- 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
+ debug_if( DEBUG_MESSAGE, "Starting sending loop\r\n" );
-#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 );
-
- while( 1 )
- {
- switch( State )
- {
- case RX:
- if( isMaster == true )
- {
- if( BufferSize > 0 )
- {
- if( strncmp( ( const char* )Buffer, ( const char* )PongMsg, 4 ) == 0 )
- {
- led = !led;
- debug( "...Pong\r\n" );
- // Send the next PING frame
- strcpy( ( char* )Buffer, ( char* )PingMsg );
- // We fill the buffer with numbers for the payload
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- }
- else if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
- { // A master already exists then become a slave
- debug( "...Ping\r\n" );
- led = !led;
- isMaster = false;
- // Send the next PONG frame
- strcpy( ( char* )Buffer, ( char* )PongMsg );
- // We fill the buffer with numbers for the payload
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- }
- else // valid reception but neither a PING or a PONG message
- { // Set device as master ans start again
- isMaster = true;
- Radio.Rx( RX_TIMEOUT_VALUE );
- }
- }
- }
- else
- {
- if( BufferSize > 0 )
- {
- if( strncmp( ( const char* )Buffer, ( const char* )PingMsg, 4 ) == 0 )
- {
- led = !led;
- debug( "...Ping\r\n" );
- // Send the reply to the PING string
- strcpy( ( char* )Buffer, ( char* )PongMsg );
- // We fill the buffer with numbers for the payload
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- }
- else // valid reception but not a PING as expected
- { // Set device as master and start again
- isMaster = true;
- Radio.Rx( RX_TIMEOUT_VALUE );
- }
- }
- }
- State = LOWPOWER;
- break;
- case TX:
- led = !led;
- if( isMaster == true )
- {
- debug( "Ping...\r\n" );
- }
- else
- {
- debug( "Pong...\r\n" );
- }
- Radio.Rx( RX_TIMEOUT_VALUE );
- State = LOWPOWER;
- break;
- case RX_TIMEOUT:
- if( isMaster == true )
- {
- // Send the next PING frame
- strcpy( ( char* )Buffer, ( char* )PingMsg );
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- }
- else
- {
- Radio.Rx( RX_TIMEOUT_VALUE );
- }
- State = LOWPOWER;
- break;
- case RX_ERROR:
- // We have received a Packet with a CRC error, send reply as if packet was correct
- if( isMaster == true )
- {
- // Send the next PING frame
- strcpy( ( char* )Buffer, ( char* )PingMsg );
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- }
- else
- {
- // Send the next PONG frame
- strcpy( ( char* )Buffer, ( char* )PongMsg );
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- }
- State = LOWPOWER;
- break;
- case TX_TIMEOUT:
- Radio.Rx( RX_TIMEOUT_VALUE );
- State = LOWPOWER;
- break;
- case LOWPOWER:
- break;
- default:
- State = LOWPOWER;
- break;
- }
+
+ while( 1 ) {
+ debug("\r\n========\r\nSending a new Packet\r\n========\r\n");
+ strcpy( ( char* )Buffer, ( char* )PingMsg );
+ // We fill the buffer with numbers for the payload
+ for( i = 4; i < BufferSize; i++ ) {
+ Buffer[i] = i - 4;
+ }
+ wait_ms( 10 );
+ Radio.Send( Buffer, BufferSize );
+ wait(3);
}
}
@@ -312,17 +122,6 @@
debug_if( DEBUG_MESSAGE, "> 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, "> OnRxDone\n\r" );
-}
-
void OnTxTimeout( void )
{
Radio.Sleep( );
@@ -330,18 +129,3 @@
debug_if( DEBUG_MESSAGE, "> OnTxTimeout\n\r" );
}
-void OnRxTimeout( void )
-{
- Radio.Sleep( );
- Buffer[ BufferSize ] = 0;
- State = RX_TIMEOUT;
- debug_if( DEBUG_MESSAGE, "> OnRxTimeout\n\r" );
-}
-
-void OnRxError( void )
-{
- Radio.Sleep( );
- State = RX_ERROR;
- debug_if( DEBUG_MESSAGE, "> OnRxError\n\r" );
-}
-