SX1276 Shield based Applications
Dependencies: X_NUCLEO_IKS01A1 LoRaWAN-lib SX1276Lib mbed
LoRaWAN-SX1276-Application Demo uses SX1276MB1LAS mbed component shield on a nucleo board platform to demonstrate a Class-A LoRaWAN device in the 915MHz ISM band for North American region. It uses the LoRaWAN-lib and SX1276Lib libraries.
Comissioning.h (LoRaWAN Network Configuration)
The end-device can be activated in one of the two ways:
Over the Air (OTA) activation can be enabled as shown in the figure below.
The end-device must be configured with the following parameters:
LORAWAN_DEVICE_EUI
(8 Bytes) : Fist 3 Bytes is the Organizationally Unique Identifier (OUI) followed by 5 bytes of unique ID. If not defined by user, then the firmware automatically assigns one to the end-deviceLORAWAN_APPLICATION_EUI
(8 Bytes)LORAWAN_APPLICATION_KEY
(or DEVKEY) (16 Bytes)
Activation by Personalization (ABP) can be enabled as shown in the figure below.
The end-device must be configured with the following parameters:
LORAWAN_DEVICE_ADDRESS
(4 Bytes) : If not defined by user, then the firmware automatically assigns one to the end-deviceLORAWAN_NWKSKEY
(16 Bytes)LORAWAN_APPSKEY
(16 Bytes)
Config.h (LoRaWAN Communication Parameters)
- Mode of Operation : Hybrid
If the end-device needs to be configured to operate over 8-channels, then
Hybrid Mode
needs to be enabled
- Mode of Operation : Frequency Hop
If the end-device needs to be configured to operate over 64-channels, then
Hybrid Mode
needs to be disabled
- Delay between successive JOIN REQUESTs :
The delay between successive Join Requests (until the end-device joins the network) can be configured using the parameter
OVER_THE_AIR_ACTIVATION_DUTYCYCLE
- Inter-Frame Delay :
One can change the delay between each frame transmission using
APP_TX_DUTYCYCLE
It is advisable thatAPP_TX_DUTYCYCLE
is greater than or equal to 3sec.
- Data Rate :
The data rate can be configured as per LoRaWAN specification using the paramter
LORAWAN_DEFAULT_DATARATE
. The range of values are DR_0, DR_1, DR_2, DR_3 and DR_4
- Confirmed/Unconfirmed Messages :
The uplink message or payload can be chosen to be confirmed or unconfirmed using the parameter
LORAWAN_CONFIRMED_MSG_ON
. When set to 1, the transmitted messages need to be confirmed with anACK
by the network server in the subsequent RX window. When set to 0, noACK
is requested.
- ADR ON/OFF :
The ADR can be enabled or disabled using the parameter
LORAWAN_ADR_ON
. When set to 1, ADR is enabled and disabled when set to 0.
- Application Port :
The application port can be set using parameter
LORAWAN_APP_PORT
. A few examples are associated to specific Application Port, and are defined in Config.h
- Payload Length :
The lenght of the payload (in bytes) to be transmitted can be configured using
LORAWAN_APP_DATA_SIZE
- Transmit Power :
The transmit power can be configured using
LORAWAN_TX_POWER
(LoRaMAC verifies if the set power is compliant with the LoRaWAN spec and FCC guidelines)
The baud-rate for serial terminal display is 115200
app/SerialDisplay.cpp
- Committer:
- ubhat
- Date:
- 2018-07-18
- Revision:
- 6:c5f2da0de0b0
- Parent:
- 0:42863a11464a
File content as of revision 6:c5f2da0de0b0:
/* / _____) _ | | ( (____ _____ ____ _| |_ _____ ____| |__ \____ \| ___ | (_ _) ___ |/ ___) _ \ _____) ) ____| | | || |_| ____( (___| | | | (______/|_____)_|_|_| \__)_____)\____)_| |_| (C)2015 Semtech Description: VT100 serial display management License: Revised BSD License, see LICENSE.TXT file include in the project Maintainer: Miguel Luis and Gregory Cristian */ #include "SerialDisplay.h" VT100 vt( USBTX, USBRX ); void SerialDisplayJoinUpdate( void ) { printf( "###### ===== JOINING ==== ######\r\n" ); DisplayNetworkParam( ); printf( "\r\n" ); } void SerialDisplayTxUpdate(void) { printf( "###### ===== UPLINK FRAME %d ==== ######\r\n", LoRaMacUplinkStatus.UplinkCounter ); DisplayNetworkParam( ); printf( "TX PORT: %d\r\n", LoRaMacUplinkStatus.Port ); if( LoRaMacUplinkStatus.BufferSize != 0 ) { printf( "TX DATA: " ); if( LoRaMacUplinkStatus.Type == MCPS_CONFIRMED ) { printf( "CONFIRMED\r\n" ); } else { printf( "UNCONFIRMED\r\n" ); } SerialDisplayHex( LoRaMacUplinkStatus.Buffer, LoRaMacUplinkStatus.BufferSize ); } printf( "DATA RATE: DR%d\r\n", LoRaMacUplinkStatus.Datarate ); printf( "TX POWER: %d dBm\r\n", 30 - ( LoRaMacUplinkStatus.TxPower << 1 ) ); printf( "BATTERY: %2.2fV\r\n", BoardGetBatteryLevel( ) ); printf( "\r\n"); } void SerialDisplayRxUpdate( void ) { printf( "###### ===== DOWNLINK FRAME %d ==== ######\r\n", LoRaMacDownlinkStatus.DownlinkCounter ); printf( "RX WINDOW: %d\r\n", LoRaMacDownlinkStatus.RxSlot + 1 ); printf( "RX PORT: %d\r\n", LoRaMacDownlinkStatus.Port ); if( LoRaMacDownlinkStatus.BufferSize != 0 ) { printf( "RX DATA: \r\n" ); SerialDisplayHex( LoRaMacDownlinkStatus.Buffer, LoRaMacDownlinkStatus.BufferSize ); } printf( "RX RSSI: %d\r\n", LoRaMacDownlinkStatus.Rssi ); printf( "RX SNR: %d\r\n", LoRaMacDownlinkStatus.Snr ); printf( "\r\n" ); } void SerialDisplayHex( uint8_t *pData, uint8_t len ) { int i; bool newline = 0; for( i = 0; i < len; i++ ) { if( newline != 0 ) { printf( "\r\n" ); newline = 0; } printf( "%02X ", pData[i] ); if( ( ( i + 1 ) % 16 ) == 0 ) { newline = 1; } } printf( "\r\n" ); } void SerialAcclMetrDisplay( uint8_t statusReg ) { printf( "===== DEVICE ORIENTATION ====\r\n" ); if( ( statusReg & 0x40 ) != 0 ) { printf( "HORIZONTAL + " ); if( ( statusReg & 0x01 ) != 0 ) { printf( "FACE DOWN" ); } else { printf( "FACE UP" ); } } else { printf( "VERTICAL" ); } printf( "\r\n\r\n" ); } void DisplayNetworkParam( void ) { #if( OVER_THE_AIR_ACTIVATION != 0 ) printf( "DEVEUI: " ); SerialDisplayHex( DevEui, 8 ); printf( "APPEUI: " ); SerialDisplayHex( AppEui, 8 ); printf( "APPKEY: " ); SerialDisplayHex( AppKey, 16 ); #else printf( "DEVADDR: " ); uint8_t *pData = ( uint8_t* )&DevAddr; for( int32_t i = 3; i >= 0; i-- ) { printf( "%02X ", pData[i] ); } printf( "\r\n" ); printf( "NWKSKEY: " ); SerialDisplayHex( NwkSKey, 16 ); printf( "APPSKEY: " ); SerialDisplayHex( AppSKey, 16 ); #endif }