MultiTech / Mbed OS mDot_LoRa_Connect_Example_CUSTOM_AS923

Dependencies:   libmDot-Custom

Fork of mDot_LoRa_Connect_Example by MultiTech

The project is a starting point for the AS923 channel plan.

Default frequencies are 923.2 and 923.4 Join Datarate is set to DR2:SF10BW125 Additional channels can be added in JoinAccept message or through new channel mac commands

New MAC commands in LoRaWAN 1.02 have NOT been included to set the DwellTime and MaxEIRP Overriding this function is available to someone who would like to do this. virtual uint8_t HandleMacCommands(uint8_t* payload, uint8_t index, uint8_t end_index);

main.cpp

Committer:
jreiss
Date:
2016-09-28
Revision:
10:f5ea829bf9ca
Parent:
8:945bf15931ee
Child:
12:2bdea2bdd694

File content as of revision 10:f5ea829bf9ca:

#include "mbed.h"
#include "mDot.h"
#include "MTSLog.h"
#include <string>
#include <vector>
#include <algorithm>
#include "CustomChannelPlan_AS923.h"

// these options must match the settings on your Conduit
// uncomment the following lines and edit their values to match your configuration
static std::string config_network_name = "<NETWORK_NAME>";
static std::string config_network_pass = "<NETWORK_PASS>";
static uint8_t config_frequency_sub_band = 1;

Serial debug(USBTX, USBRX);

int main() {
    debug.baud(115200);
    debug.printf("hello");
    
    int32_t ret;
    mDot* dot;
    std::vector<uint8_t> data;
    std::string data_str = "hello!";
    
    debug.printf("get mdot");
    
    // get a mDot handle
    dot = mDot::getInstance();
    
    debug.printf("set channel plan");
    
    lora::CustomChannelPlan_AS923* plan = new lora::CustomChannelPlan_AS923(*dot->getRadio(), *dot->getSettings());
    dot->setChannelPlan(plan);
    
    debug.printf("done");
    
    // print library version information
    logInfo("version: %s", dot->getId().c_str());

    //*******************************************
    // configuration
    //*******************************************
    // reset to default config so we know what state we're in
    dot->resetConfig();
    
    dot->setLogLevel(mts::MTSLog::TRACE_LEVEL);

    // set up the mDot with our network information: frequency sub band, network name, and network password
    // these can all be saved in NVM so they don't need to be set every time - see mDot::saveConfig()
    
    // frequency sub band is only applicable in the 915 (US) frequency band
    // if using a MultiTech Conduit gateway, use the same sub band as your Conduit (1-8) - the mDot will use the 8 channels in that sub band
    // if using a gateway that supports all 64 channels, use sub band 0 - the mDot will use all 64 channels
    
    logInfo("setting to public network");
    if ((ret = dot->setPublicNetwork(true)) != mDot::MDOT_OK) {
        logError("failed to set public network %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }

    logInfo("setting frequency sub band");    
    if ((ret = dot->setFrequencySubBand(config_frequency_sub_band)) != mDot::MDOT_OK) {
        logError("failed to set frequency sub band %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }
    
    logInfo("setting network name");
    if ((ret = dot->setNetworkName(config_network_name)) != mDot::MDOT_OK) {
        logError("failed to set network name %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }
    
    logInfo("setting network password");
    if ((ret = dot->setNetworkPassphrase(config_network_pass)) != mDot::MDOT_OK) {
        logError("failed to set network password %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }
    
    // a higher spreading factor allows for longer range but lower throughput
    // in the 915 (US) frequency band, spreading factors 7 - 10 are available
    // in the 868 (EU) frequency band, spreading factors 7 - 12 are available
    logInfo("setting TX spreading factor");
    if ((ret = dot->setTxDataRate(mDot::DR2)) != mDot::MDOT_OK) {
        logError("failed to set TX datarate %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }
    
    // request receive confirmation of packets from the gateway
    logInfo("enabling ACKs");
    if ((ret = dot->setAck(1)) != mDot::MDOT_OK) {
        logError("failed to enable ACKs %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
    }
    
    // save this configuration to the mDot's NVM
    logInfo("saving config");
    if (! dot->saveConfig()) {
        logError("failed to save configuration");
    }
    //*******************************************
    // end of configuration
    //*******************************************

    // attempt to join the network
    logInfo("joining network");
    while ((ret = dot->joinNetwork()) != mDot::MDOT_OK) {
        logError("failed to join network %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
        // in the 868 (EU) frequency band, we need to wait until another channel is available before transmitting again
        osDelay(std::max((uint32_t)1000, (uint32_t)dot->getNextTxMs()));
    }

    // format data for sending to the gateway
    for (std::string::iterator it = data_str.begin(); it != data_str.end(); it++)
        data.push_back((uint8_t) *it);

    while (true) {
        // send the data to the gateway
        if ((ret = dot->send(data)) != mDot::MDOT_OK) {
            logError("failed to send", ret, mDot::getReturnCodeString(ret).c_str());
        } else {
            logInfo("successfully sent data to gateway");
        }

        // in the 868 (EU) frequency band, we need to wait until another channel is available before transmitting again
        osDelay(std::max((uint32_t)5000, (uint32_t)dot->getNextTxMs()));
    }

    return 0;
}