kimutai ngetich / Mbed OS gps_accelerometer

getting location and activity

Dependencies:   Cayenne-LPP GPS

inc/lorawan_network.h@0:68ca78749806, 2019-03-11 (annotated)

Committer:
kimutaingetich
Date:
Mon Mar 11 09:24:37 2019 +0000
Revision:
0:68ca78749806
time changes

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kimutaingetich 0:68ca78749806 1 #ifndef _LORAWAN_NETWORK_H_
kimutaingetich 0:68ca78749806 2 #define _LORAWAN_NETWORK_H_
kimutaingetich 0:68ca78749806 3
kimutaingetich 0:68ca78749806 4 #include "mbed.h"
kimutaingetich 0:68ca78749806 5 #include "mbed_trace.h"
kimutaingetich 0:68ca78749806 6 #include "mbed_events.h"
kimutaingetich 0:68ca78749806 7 #include "LoRaWANInterface.h"
kimutaingetich 0:68ca78749806 8 #include "SX1276_LoRaRadio.h"
kimutaingetich 0:68ca78749806 9 #include "CayenneLPP.h"
kimutaingetich 0:68ca78749806 10 #include "lora_radio_helper.h"
kimutaingetich 0:68ca78749806 11
kimutaingetich 0:68ca78749806 12 #define MBED_CONF_LORA_APP_PORT 15
kimutaingetich 0:68ca78749806 13
kimutaingetich 0:68ca78749806 14 // EventQueue is required to dispatch events around
kimutaingetich 0:68ca78749806 15 EventQueue ev_queue;
kimutaingetich 0:68ca78749806 16
kimutaingetich 0:68ca78749806 17 // Constructing Mbed LoRaWANInterface and passing it down the radio object.
kimutaingetich 0:68ca78749806 18 static LoRaWANInterface lorawan(radio);
kimutaingetich 0:68ca78749806 19
kimutaingetich 0:68ca78749806 20 // Application specific callbacks
kimutaingetich 0:68ca78749806 21 static lorawan_app_callbacks_t callbacks;
kimutaingetich 0:68ca78749806 22
kimutaingetich 0:68ca78749806 23 // LoRaWAN stack event handler
kimutaingetich 0:68ca78749806 24 static void lora_event_handler(lorawan_event_t event);
kimutaingetich 0:68ca78749806 25
kimutaingetich 0:68ca78749806 26 static void lorawan_setup(uint32_t devAddr, uint8_t nwkSKey[16], uint8_t appSKey[16], Callback<void(lorawan_event_t)> lw_event_handler) {
kimutaingetich 0:68ca78749806 27 if (devAddr == 0x0) {
kimutaingetich 0:68ca78749806 28 printf("Set your LoRaWAN credentials first!\n");
kimutaingetich 0:68ca78749806 29 return;
kimutaingetich 0:68ca78749806 30 }
kimutaingetich 0:68ca78749806 31
kimutaingetich 0:68ca78749806 32 // Enable trace output for this demo, so we can see what the LoRaWAN stack does
kimutaingetich 0:68ca78749806 33 mbed_trace_init();
kimutaingetich 0:68ca78749806 34
kimutaingetich 0:68ca78749806 35 if (lorawan.initialize(&ev_queue) != LORAWAN_STATUS_OK) {
kimutaingetich 0:68ca78749806 36 printf("[LNWK][ERR ] LoRa initialization failed!\n");
kimutaingetich 0:68ca78749806 37 return;
kimutaingetich 0:68ca78749806 38 }
kimutaingetich 0:68ca78749806 39
kimutaingetich 0:68ca78749806 40 // prepare application callbacks
kimutaingetich 0:68ca78749806 41 callbacks.events = lw_event_handler;
kimutaingetich 0:68ca78749806 42 lorawan.add_app_callbacks(&callbacks);
kimutaingetich 0:68ca78749806 43
kimutaingetich 0:68ca78749806 44 // Disable adaptive data rating
kimutaingetich 0:68ca78749806 45 if (lorawan.disable_adaptive_datarate() != LORAWAN_STATUS_OK) {
kimutaingetich 0:68ca78749806 46 printf("[LNWK][ERR ] disable_adaptive_datarate failed!\n");
kimutaingetich 0:68ca78749806 47 return;
kimutaingetich 0:68ca78749806 48 }
kimutaingetich 0:68ca78749806 49
kimutaingetich 0:68ca78749806 50 lorawan.set_datarate(0); // SF12BW125
kimutaingetich 0:68ca78749806 51
kimutaingetich 0:68ca78749806 52 lorawan_connect_t connect_params;
kimutaingetich 0:68ca78749806 53 connect_params.connect_type = LORAWAN_CONNECTION_ABP;
kimutaingetich 0:68ca78749806 54 // connect_params.connection_u.otaa.dev_eui = DEV_EUI;
kimutaingetich 0:68ca78749806 55 // connect_params.connection_u.otaa.app_eui = APP_EUI;
kimutaingetich 0:68ca78749806 56 // connect_params.connection_u.otaa.app_key = APP_KEY;
kimutaingetich 0:68ca78749806 57 // connect_params.connection_u.otaa.nb_trials = 3;
kimutaingetich 0:68ca78749806 58
kimutaingetich 0:68ca78749806 59 connect_params.connection_u.abp.dev_addr = devAddr;
kimutaingetich 0:68ca78749806 60 connect_params.connection_u.abp.nwk_skey = nwkSKey;
kimutaingetich 0:68ca78749806 61 connect_params.connection_u.abp.app_skey = appSKey;
kimutaingetich 0:68ca78749806 62
kimutaingetich 0:68ca78749806 63 lorawan_status_t retcode = lorawan.connect(connect_params);
kimutaingetich 0:68ca78749806 64
kimutaingetich 0:68ca78749806 65 if (retcode == LORAWAN_STATUS_OK ||
kimutaingetich 0:68ca78749806 66 retcode == LORAWAN_STATUS_CONNECT_IN_PROGRESS) {
kimutaingetich 0:68ca78749806 67 } else {
kimutaingetich 0:68ca78749806 68 printf("[LNWK][ERR ] Connection error, code = %d\n", retcode);
kimutaingetich 0:68ca78749806 69 return;
kimutaingetich 0:68ca78749806 70 }
kimutaingetich 0:68ca78749806 71
kimutaingetich 0:68ca78749806 72 printf("[LNWK][INFO] Connection - In Progress...\n");
kimutaingetich 0:68ca78749806 73 }
kimutaingetich 0:68ca78749806 74
kimutaingetich 0:68ca78749806 75 // This is called from RX_DONE, so whenever a message came in
kimutaingetich 0:68ca78749806 76 static void receive_message()
kimutaingetich 0:68ca78749806 77 {
kimutaingetich 0:68ca78749806 78 uint8_t rx_buffer[50] = { 0 };
kimutaingetich 0:68ca78749806 79 int16_t retcode;
kimutaingetich 0:68ca78749806 80 retcode = lorawan.receive(MBED_CONF_LORA_APP_PORT, rx_buffer,
kimutaingetich 0:68ca78749806 81 sizeof(rx_buffer),
kimutaingetich 0:68ca78749806 82 MSG_UNCONFIRMED_FLAG);
kimutaingetich 0:68ca78749806 83
kimutaingetich 0:68ca78749806 84 if (retcode < 0) {
kimutaingetich 0:68ca78749806 85 printf("[LNWK][WARN] receive() - Error code %d\n", retcode);
kimutaingetich 0:68ca78749806 86 return;
kimutaingetich 0:68ca78749806 87 }
kimutaingetich 0:68ca78749806 88
kimutaingetich 0:68ca78749806 89 printf("[LNWK][INFO] Data received on port %d (length %d): ", MBED_CONF_LORA_APP_PORT, retcode);
kimutaingetich 0:68ca78749806 90
kimutaingetich 0:68ca78749806 91 for (uint8_t i = 0; i < retcode; i++) {
kimutaingetich 0:68ca78749806 92 printf("%02x ", rx_buffer[i]);
kimutaingetich 0:68ca78749806 93 }
kimutaingetich 0:68ca78749806 94 printf("\n");
kimutaingetich 0:68ca78749806 95 }
kimutaingetich 0:68ca78749806 96
kimutaingetich 0:68ca78749806 97 // Event handler
kimutaingetich 0:68ca78749806 98 bool lorawan_send(CayenneLPP *payload) {
kimutaingetich 0:68ca78749806 99 int16_t retcode = lorawan.send(MBED_CONF_LORA_APP_PORT, payload->getBuffer(), payload->getSize(), MSG_UNCONFIRMED_FLAG);
kimutaingetich 0:68ca78749806 100
kimutaingetich 0:68ca78749806 101 // for some reason send() ret\urns -1... I cannot find out why, the stack returns the right number. I feel that this is some weird Emscripten quirk
kimutaingetich 0:68ca78749806 102 if (retcode < 0) {
kimutaingetich 0:68ca78749806 103 retcode == LORAWAN_STATUS_WOULD_BLOCK ? printf("[LNWK][WARN] send - duty cycle violation\n")
kimutaingetich 0:68ca78749806 104 : printf("[LNWK][WARN] send() - Error code %d\n", retcode);
kimutaingetich 0:68ca78749806 105 return false;
kimutaingetich 0:68ca78749806 106 }
kimutaingetich 0:68ca78749806 107
kimutaingetich 0:68ca78749806 108 printf("[LNWK][INFO] %d bytes scheduled for transmission\n", retcode);
kimutaingetich 0:68ca78749806 109 return true;
kimutaingetich 0:68ca78749806 110 }
kimutaingetich 0:68ca78749806 111
kimutaingetich 0:68ca78749806 112 #endif // _LORAWAN_NETWORK_H_