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@jkachmar
Last active August 30, 2016 18:06
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mDot TTN OTAA
#include "mbed.h"
#include "mDot.h"
#include "MTSLog.h"
#include <string>
#include <vector>
#include <algorithm>
static uint8_t config_appEui[] = { <AppEUI> }; // MUST be MSB-format
static uint8_t config_appKey[] = { <AppKey> }; // MUST be MSB-format
static uint8_t config_frequency_sub_band = 2;
mDot* dot;
void setupNetwork();
int main() {
Serial pc(USBTX, USBRX);
// Set up the network
setupNetwork();
// Message you want to send
std::string data_str = "Hello!";
// Copy the message in an array of bytes
std::vector<uint8_t> data;
for (std::string::iterator it = data_str.begin(); it != data_str.end(); it++)
data.push_back((uint8_t) *it);
// Start the loop
int32_t ret;
while (true) {
// Send the data
if ((ret = dot->send(data)) != mDot::MDOT_OK) {
// Oops, there was an error, check the debug screen
logError("Failed to send", ret, mDot::getReturnCodeString(ret).c_str());
//pc.printf("Failed to send");
} else {
// Sent the data
logInfo("Successfully sent data");
//pc.printf("Successfully sent data");
}
// Sleep for 10 seconds
uint32_t sleep_time = std::max((uint32_t)10000,
(uint32_t)dot->getNextTxMs());
sleep_time = sleep_time / 1000;
dot->sleep(sleep_time);
}
}
void setupNetwork() {
//Serial pc(USBTX, USBRX);
int32_t ret;
// get a mDot handle
dot = mDot::getInstance();
// print library version information
logInfo("Version: %s", dot->getId().c_str());
// reset to default config so we know what state we're in
dot->resetConfig();
dot->setLogLevel(mts::MTSLog::INFO_LEVEL);
//joinmode: [MANUAL = ABP]/[OTA]/[AUTO_OTA]
dot->setJoinMode(mDot::AUTO_OTA);
// 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
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());
}
std::vector<uint8_t> temp;
if ((ret = dot->setPublicNetwork(true)) != mDot::MDOT_OK) {
logError("Failed to enable public network %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
}
for (int i = 0; i < 8; i++) {
temp.push_back(config_appEui[i]);
}
logInfo("setting App EUI ");
if ((ret = dot->setNetworkId(temp)) != mDot::MDOT_OK) {
logError("failed to set App EUI %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
}
temp.clear();
for (int i = 0; i < 16; i++) {
temp.push_back(config_appKey[i]);
}
logInfo("setting App Key ");
if ((ret = dot->setNetworkKey(temp)) != mDot::MDOT_OK) {
logError("failed to set AppKey %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::SF_8)) != 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("Disabling ACKs");
if ((ret = dot->setAck(0)) != 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");
}
logInfo("Joining Network");
while ((ret = dot->joinNetwork()) != mDot::MDOT_OK) {
logError("failed to join network [%d][%s]", ret, mDot::getReturnCodeString(ret).c_str());
wait_ms(dot->getNextTxMs() + 1);
}
logInfo("Joined Network");
}
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