Uttam Bhat / LoRaWAN-SX1276-Application-Demo

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. /media/uploads/ubhat/ota_enable.png

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-device
  • LORAWAN_APPLICATION_EUI (8 Bytes)
  • LORAWAN_APPLICATION_KEY (or DEVKEY) (16 Bytes)

/media/uploads/ubhat/ota_eui.png

Activation by Personalization (ABP) can be enabled as shown in the figure below. /media/uploads/ubhat/abp_enable.png

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-device
  • LORAWAN_NWKSKEY (16 Bytes)
  • LORAWAN_APPSKEY (16 Bytes)

/media/uploads/ubhat/abp_key.png

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 /media/uploads/ubhat/hybridenable.png
  • 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 that APP_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 an ACK by the network server in the subsequent RX window. When set to 0, no ACK 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)

/media/uploads/ubhat/loraconfig.png

The baud-rate for serial terminal display is 115200

app/Comissioning.h@6:c5f2da0de0b0, 2018-07-18 (annotated)

Committer:
ubhat
Date:
Wed Jul 18 22:26:26 2018 +0000
Revision:
6:c5f2da0de0b0
Parent:
0:42863a11464a 
Add Channel Block option in Config.h; Fix board specific DevEUI allocation

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ubhat 0:42863a11464a 1 /*
ubhat 0:42863a11464a 2 / _____) _ | |
ubhat 0:42863a11464a 3 ( (____ _____ ____ _| |_ _____ ____| |__
ubhat 0:42863a11464a 4 \____ \| ___ | (_ _) ___ |/ ___) _ \
ubhat 0:42863a11464a 5 _____) ) ____| | | || |_| ____( (___| | | |
ubhat 0:42863a11464a 6 (______/|_____)_|_|_| \__)_____)\____)_| |_|
ubhat 0:42863a11464a 7 (C)2015 Semtech
ubhat 0:42863a11464a 8
ubhat 0:42863a11464a 9 Description: End device comissioning parameters
ubhat 0:42863a11464a 10
ubhat 0:42863a11464a 11 License: Revised BSD License, see LICENSE.TXT file include in the project
ubhat 0:42863a11464a 12
ubhat 0:42863a11464a 13 Maintainer: Miguel Luis and Gregory Cristian
ubhat 0:42863a11464a 14 */
ubhat 0:42863a11464a 15 #ifndef __LORA_COMISSIONING_H__
ubhat 0:42863a11464a 16 #define __LORA_COMISSIONING_H__
ubhat 0:42863a11464a 17
ubhat 0:42863a11464a 18 /*!
ubhat 0:42863a11464a 19 * When set to 1 the application uses the Over-the-Air activation procedure
ubhat 0:42863a11464a 20 * When set to 0 the application uses the Personalization activation procedure
ubhat 0:42863a11464a 21 */
ubhat 0:42863a11464a 22 #define OVER_THE_AIR_ACTIVATION 1
ubhat 0:42863a11464a 23
ubhat 0:42863a11464a 24 /*!
ubhat 0:42863a11464a 25 * Indicates if the end-device is to be connected to a private or public network
ubhat 0:42863a11464a 26 */
ubhat 0:42863a11464a 27 #define LORAWAN_PUBLIC_NETWORK true
ubhat 0:42863a11464a 28
ubhat 0:42863a11464a 29 #if( OVER_THE_AIR_ACTIVATION != 0 )
ubhat 0:42863a11464a 30
ubhat 0:42863a11464a 31 /*!
ubhat 0:42863a11464a 32 * Mote device IEEE OUI (big endian)
ubhat 0:42863a11464a 33 * \remark This is unique to a company or organization
ubhat 0:42863a11464a 34 */
ubhat 0:42863a11464a 35 #define IEEE_OUI 0x00, 0x00, 0x00
ubhat 0:42863a11464a 36
ubhat 0:42863a11464a 37 /*!
ubhat 0:42863a11464a 38 * Mote device IEEE EUI (big endian)
ubhat 0:42863a11464a 39 *
ubhat 0:42863a11464a 40 * \remark In this application, if the last 4 bytes are all 0, then the 32 bit address is automatically generated using a pseudo random generator seeded with a value derived from BoardUniqueId value
ubhat 0:42863a11464a 41 * If provided by user, e.g. { IEEE_OUI, 0x00, 0x00, 0x00, 0xFF, 0x01 }, then this value is used by the application
ubhat 0:42863a11464a 42 */
ubhat 0:42863a11464a 43 #define LORAWAN_DEVICE_EUI { IEEE_OUI, 0x00, 0x00, 0x00, 0x00, 0x00 }
ubhat 0:42863a11464a 44
ubhat 0:42863a11464a 45 /*!
ubhat 0:42863a11464a 46 * Application IEEE EUI (big endian)
ubhat 0:42863a11464a 47 */
ubhat 0:42863a11464a 48 #define LORAWAN_APPLICATION_EUI { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 }
ubhat 0:42863a11464a 49
ubhat 0:42863a11464a 50 /*!
ubhat 0:42863a11464a 51 * AES encryption/decryption cipher application key
ubhat 0:42863a11464a 52 */
ubhat 0:42863a11464a 53 #define LORAWAN_APPLICATION_KEY { 0x00, 0x11, 0x22, 0x33, 0x44, 0x55, 0x66, 0x77, 0x88, 0x99, 0xaa, 0xbb, 0xcc, 0xdd, 0xee, 0xff }
ubhat 0:42863a11464a 54
ubhat 0:42863a11464a 55 #else
ubhat 0:42863a11464a 56
ubhat 0:42863a11464a 57 /*!
ubhat 0:42863a11464a 58 * Device address on the network (big endian)
ubhat 0:42863a11464a 59 *
ubhat 0:42863a11464a 60 * \remark In this application, if the value is 0, then the address is automatically generated using a pseudo random generator seeded with a value derived from BoardUniqueId value
ubhat 0:42863a11464a 61 * If provided by user, e.g. 0x78563412, then this value is used by the application
ubhat 0:42863a11464a 62 */
ubhat 0:42863a11464a 63 #define LORAWAN_DEVICE_ADDRESS ( uint32_t )0x0
ubhat 0:42863a11464a 64
ubhat 0:42863a11464a 65 /*!
ubhat 0:42863a11464a 66 * AES encryption/decryption cipher network session key
ubhat 0:42863a11464a 67 */
ubhat 0:42863a11464a 68 #define LORAWAN_NWKSKEY { 0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6, 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C }
ubhat 0:42863a11464a 69
ubhat 0:42863a11464a 70 /*!
ubhat 0:42863a11464a 71 * AES encryption/decryption cipher application session key
ubhat 0:42863a11464a 72 */
ubhat 0:42863a11464a 73 #define LORAWAN_APPSKEY { 0x2B, 0x7E, 0x15, 0x16, 0x28, 0xAE, 0xD2, 0xA6, 0xAB, 0xF7, 0x15, 0x88, 0x09, 0xCF, 0x4F, 0x3C }
ubhat 0:42863a11464a 74
ubhat 0:42863a11464a 75 #endif
ubhat 0:42863a11464a 76
ubhat 0:42863a11464a 77
ubhat 0:42863a11464a 78 #endif // __LORA_COMISSIONING_H__