This is an example application based on Mbed-OS LoRaWAN protocol APIs. The Mbed-OS LoRaWAN stack implementation is compliant with LoRaWAN v1.0.2 specification.
Dependencies: Lorawan_Version_0_1
Dependents: Lorawan_Version_0_1
main.cpp
- Committer:
- jacktractive
- Date:
- 2020-01-11
- Revision:
- 64:85fa08519e1e
- Parent:
- 63:2bfceda4c30c
- Child:
- 65:3061ea235a0c
File content as of revision 64:85fa08519e1e:
/** * Copyright (c) 2017, Arm Limited and affiliates. * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #include <stdio.h> #include "lorawan/LoRaWANInterface.h" #include "lorawan/system/lorawan_data_structures.h" #include "events/EventQueue.h" // Application helpers #include "DummySensor.h" #include "trace_helper.h" #include "lora_radio_helper.h" #include <mbed.h> using namespace events; // Max payload size can be LORAMAC_PHY_MAXPAYLOAD. // This example only communicates with much shorter messages (<30 bytes). // If longer messages are used, these buffers must be changed accordingly. uint8_t tx_buffer[30]; uint8_t rx_buffer[30]; float Home_Longitude; float Home_Latitude; float Home_Distance; float Home_Distance_max; bool GPS_activ,LORA_activ,AtHome; int LiveTick; bool IsLoading; AnalogIn LadeSpannung(PB_0); // 1/11 der gleichgerichteten Spannung am Dynamo /* * Sets up an application dependent transmission timer in ms. Used only when Duty Cycling is off for testing */ #define TX_TIMER 100000 /** * Maximum number of events for the event queue. * 10 is the safe number for the stack events, however, if application * also uses the queue for whatever purposes, this number should be increased. */ #define MAX_NUMBER_OF_EVENTS 10 /** * Maximum number of retries for CONFIRMED messages before giving up */ #define CONFIRMED_MSG_RETRY_COUNTER 3 DigitalOut led(LED2); #include "Fahrrad.h" /** * This event queue is the global event queue for both the * application and stack. To conserve memory, the stack is designed to run * in the same thread as the application and the application is responsible for * providing an event queue to the stack that will be used for ISR deferment as * well as application information event queuing. */ static EventQueue ev_queue(MAX_NUMBER_OF_EVENTS *EVENTS_EVENT_SIZE); /** * Event handler. * * This will be passed to the LoRaWAN stack to queue events for the * application which in turn drive the application. */ static void lora_event_handler(lorawan_event_t event); /** * Constructing Mbed LoRaWANInterface and passing it the radio object from lora_radio_helper. */ static LoRaWANInterface lorawan(radio); /** * Application specific callbacks */ static lorawan_app_callbacks_t callbacks; static void LifeTicker() { LiveTick=LiveTick+1; printf("\n\t\t---LiveTick--- [%i]\n\n", LiveTick); printf("Ladewert: %3.3f%%\n", LadeSpannung.read()*100.0f); if(LadeSpannung.read() > 0.05f) { if (not IsLoading) {Licht_hell();} IsLoading = 1; } else { if (IsLoading) {ev_queue.call_in(3000, Licht_dunkel);} IsLoading = 0; } if(LORA_activ) { printf("\n\tLORA Connected\n"); } else { printf("\n\tKein LORA Signal\n"); } ev_queue.call(GPS_aktiv); // ev_queue.call_in(5000, LifeTicker); } /** * Entry point for application */ int main(void) { ev_queue.call_every(5000,LifeTicker); // setup tracing setup_trace(); //Starte_Fahrrad_Eventmanager(); //schonmal die Fahrrad Events Initialisieren falls wir hier auch ohne lorawan empfang was machen wollen // stores the status of a call to LoRaWAN protocol lorawan_status_t retcode; // Initialize LoRaWAN stack if (lorawan.initialize(&ev_queue) != LORAWAN_STATUS_OK) { printf("\r\n LoRa initialization failed! \r\n"); return -1; } printf("\r\n Mbed LoRaWANStack initialized \r\n"); // prepare application callbacks callbacks.events = mbed::callback(lora_event_handler); lorawan.add_app_callbacks(&callbacks); // Set number of retries in case of CONFIRMED messages if (lorawan.set_confirmed_msg_retries(CONFIRMED_MSG_RETRY_COUNTER) != LORAWAN_STATUS_OK) { printf("\r\n set_confirmed_msg_retries failed! \r\n\r\n"); return -1; } printf("\r\n CONFIRMED message retries : %d \r\n", CONFIRMED_MSG_RETRY_COUNTER); // Enable adaptive data rate if (lorawan.enable_adaptive_datarate() != LORAWAN_STATUS_OK) { printf("\r\n enable_adaptive_datarate failed! \r\n"); return -1; } printf("\r\n Adaptive data rate (ADR) - Enabled \r\n"); retcode = lorawan.connect(); if (retcode == LORAWAN_STATUS_OK || retcode == LORAWAN_STATUS_CONNECT_IN_PROGRESS) { } else { printf("\r\n Connection error, code = %d \r\n", retcode); return -1; } printf("\r\n Connection - In Progress ...\r\n"); // make your event queue dispatching events forever ev_queue.dispatch_forever(); return 0; } /** * Sends a message to the Network Server */ static void send_message() { uint16_t packet_len; int16_t retcode; int32_t sensor_value; //if (ds1820.begin()) { // ds1820.startConversion(); // sensor_value = ds1820.read(); // printf("\r\n Dummy Sensor Value = %d \r\n", sensor_value); // ds1820.startConversion(); // } else { // printf("\r\n No sensor found \r\n"); // return; // } if (retcode < 0) { retcode == LORAWAN_STATUS_WOULD_BLOCK ? printf("send - WOULD BLOCK\r\n") : printf("\r\n send() - Error code %d \r\n", retcode); if (retcode == LORAWAN_STATUS_WOULD_BLOCK) { //retry in 3 seconds if (MBED_CONF_LORA_DUTY_CYCLE_ON) { ev_queue.call_in(3000, send_message); } } return; } printf("\r\n %d bytes scheduled for transmission \r\n", retcode); memset(tx_buffer, 0, sizeof(tx_buffer)); } /** * Receive a message from the Network Server */ static void receive_message() { uint8_t port; int flags; int16_t retcode = lorawan.receive(rx_buffer, sizeof(rx_buffer), port, flags); if (retcode < 0) { printf("\r\n receive() - Error code %d \r\n", retcode); return; } printf(" RX Data on port %u (%d bytes): ", port, retcode); for (uint8_t i = 0; i < retcode; i++) { printf("%02x ", rx_buffer[i]); } if (rx_buffer[0] == 0xa0) Licht_aus(); if (rx_buffer[0] == 0xa1)Licht_an(); if (rx_buffer[0] == 0xb1) Blinken_ein(); if (rx_buffer[0] == 0xb0) Blinken_aus() ; if (rx_buffer[0] == 0xc1)GPS_anfordern(); printf("\r\n"); memset(rx_buffer, 0, sizeof(rx_buffer)); } /** * Event handler */ static void lora_event_handler(lorawan_event_t event) { switch (event) { case CONNECTED: LORA_activ=1; printf("\r\n Connection - Successful \r\n"); //ev_queue.call_every(5000, send_message); break; case DISCONNECTED: ev_queue.break_dispatch(); printf("\r\n Disconnected Successfully \r\n"); break; case TX_DONE: printf("\r\n Message Sent to Network Server \r\n"); if (MBED_CONF_LORA_DUTY_CYCLE_ON) { //send_message(); } break; case TX_TIMEOUT: LORA_activ=0; case TX_ERROR: case TX_CRYPTO_ERROR: case TX_SCHEDULING_ERROR: printf("\r\n Transmission Error - EventCode = %d \r\n", event); // try again if (MBED_CONF_LORA_DUTY_CYCLE_ON) { send_message(); } break; case RX_DONE: printf("\r\n Received message from Network Server \r\n"); receive_message(); break; case RX_TIMEOUT: case RX_ERROR: printf("\r\n Error in reception - Code = %d \r\n", event); break; case JOIN_FAILURE: printf("\r\n OTAA Failed - Check Keys \r\n"); break; case UPLINK_REQUIRED: printf("\r\n Uplink required by NS \r\n"); if (MBED_CONF_LORA_DUTY_CYCLE_ON) { send_message(); } break; default: MBED_ASSERT("Unknown Event"); } } // EOF