main.cpp

00001 #include "mbed.h"
00002 #include "mDot.h"
00003 #include "MTSLog.h"
00004 #include <string>
00005 #include <vector>
00006 #include <algorithm>
00007 #include "mbed.h"
00008 
00009 static const char LORIOT_DEV_ADDR[]  = "AABBCCDD"; // Use the big endian version here
00010 static const char LORIOT_NWK_S_KEY[] = "E8A25EBD07F85800E08478A041FACBA7"; // NWKSKEY
00011 static const char LORIOT_APP_S_KEY[] = "BE8EF84E745D0AB14D4507B0BA600555"; // APPSKEY
00012 
00013 static mDot* dot;
00014 
00015 // This is where we keep state, every time button D6 is pressed we up it
00016 // also we up it every time we send a package (in case you don't have a button)
00017 static int8_t counter = 0;
00018 
00019 // Make sure to set this var every time you handle an interrupt!
00020 // It's important so we know how we woke up...
00021 static bool from_interrupt = false;
00022 
00023 static InterruptIn btn(PA_1); /* D6 */
00024 
00025 void parseKeys() {
00026     int32_t ret;
00027     
00028     // parse devkey
00029     static uint8_t NwkSKey[16];
00030     static int ni;
00031     for (ni = 0; ni < 16; ni++)
00032     {
00033         char *non_numeric_ptr;
00034         const char hex[] = { '0', 'x', LORIOT_NWK_S_KEY[ni * 2], LORIOT_NWK_S_KEY[ni * 2 + 1] };
00035         NwkSKey[ni] = strtoul(hex, &non_numeric_ptr, 16);
00036         free(non_numeric_ptr);
00037     }
00038     const std::vector<uint8_t> loriot_nwk_skey (NwkSKey, NwkSKey + sizeof(NwkSKey) / sizeof(NwkSKey[0]) );
00039 
00040     // parse appkey
00041     static uint8_t ArtSKey[16];
00042     static int ai;
00043     for (ai = 0; ai < 16; ai++)
00044     {
00045         char *non_numeric_ptr;
00046         const char hex[] = { '0', 'x', LORIOT_APP_S_KEY[ai * 2], LORIOT_APP_S_KEY[ai * 2 + 1] };
00047         ArtSKey[ai] = strtoul(hex, &non_numeric_ptr, 16);
00048         free(non_numeric_ptr);
00049     }
00050     const std::vector<uint8_t> loriot_app_skey (ArtSKey, ArtSKey + sizeof(ArtSKey) / sizeof(ArtSKey[0]) );
00051     
00052     // parse dev addr
00053     static uint8_t DevAddr[4];
00054     for (ai = 0; ai < 4; ai++)
00055     {
00056         char *non_numeric_ptr;
00057         const char hex[] = { '0', 'x', LORIOT_DEV_ADDR[ai * 2], LORIOT_DEV_ADDR[ai * 2 + 1] };
00058         DevAddr[ai] = strtoul(hex, &non_numeric_ptr, 16);
00059         free(non_numeric_ptr);
00060     }
00061     const std::vector<uint8_t> loriot_dev_addr (DevAddr, DevAddr + sizeof(DevAddr) / sizeof(DevAddr[0]) );
00062     
00063     logInfo("setting network address");
00064     if ((ret = dot->setNetworkAddress(loriot_dev_addr)) != mDot::MDOT_OK) {
00065         logError("failed to set network address %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
00066     }
00067     
00068     logInfo("setting network session key");
00069     if ((ret = dot->setNetworkSessionKey(loriot_nwk_skey)) != mDot::MDOT_OK) {
00070         logError("failed to set network session key %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
00071     }
00072     
00073     logInfo("setting app session key");
00074     if ((ret = dot->setDataSessionKey(loriot_app_skey)) != mDot::MDOT_OK) {
00075         logError("failed to set app session key %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
00076     }
00077 }
00078 
00079 static void rise() {
00080     counter++;
00081     from_interrupt = true;
00082 }
00083 
00084 void send_data(void) {
00085     int32_t ret;
00086     
00087     std::vector<uint8_t> data;
00088     data.push_back(++counter);
00089     
00090     logInfo("sending data 0x%02x", counter);
00091     if ((ret = dot->send(data)) != mDot::MDOT_OK) {
00092         logError("failed to send %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
00093         
00094         uint32_t sleep_time = std::max((uint32_t)10000, (uint32_t)dot->getNextTxMs()) / 1000;
00095         logError("if no free channel, please wait %d seconds", sleep_time);
00096     } else {
00097         logInfo("successfully sent data to gateway");
00098     }
00099 }
00100 
00101 int main() {
00102     int32_t ret;
00103     printf("Entering main()\r\n");
00104     
00105     btn.rise(&rise);
00106     
00107     // get a mDot handle
00108     dot = mDot::getInstance();
00109     
00110     dot->setLogLevel(mts::MTSLog::DEBUG_LEVEL);
00111     
00112     // print library version information
00113     logInfo("version: %s", dot->getId().c_str());
00114 
00115     //*******************************************
00116     // configuration
00117     //*******************************************
00118     // reset to default config so we know what state we're in
00119     dot->resetConfig();
00120     
00121     logInfo("frequencyBand: %d", dot->getFrequencyBand());
00122 
00123     // set up the mDot with our network information: frequency sub band, network name, and network password
00124     // these can all be saved in NVM so they don't need to be set every time - see mDot::saveConfig()
00125 
00126     // set join mode to MANUAL so the mDot doesn't have to rejoin after sleeping
00127     logInfo("setting join mode to MANUAL");
00128     if ((ret = dot->setJoinMode(mDot::MANUAL)) != mDot::MDOT_OK) {
00129         logError("failed to set join mode %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
00130     }
00131     
00132     logInfo("setting public network");
00133     if ((ret = dot->setPublicNetwork(true)) != mDot::MDOT_OK) {
00134         logError("failed to set public network %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
00135     }
00136     
00137     logInfo("setting tx power to 20");
00138     if ((ret = dot->setTxPower(20)) != mDot::MDOT_OK) {
00139         logError("failed to set tx power %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
00140     }
00141     
00142     // set up the network keys
00143     parseKeys();
00144     
00145     // a higher spreading factor allows for longer range but lower throughput
00146     // in the 915 (US) frequency band, spreading factors 7 - 10 are available
00147     // in the 868 (EU) frequency band, spreading factors 7 - 12 are available
00148     logInfo("setting TX spreading factor");
00149     if ((ret = dot->setTxDataRate(mDot::SF_7)) != mDot::MDOT_OK) {
00150         logError("failed to set TX datarate %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
00151     }
00152     
00153     // request receive confirmation of packets from the gateway
00154     logInfo("disabling ACKs");
00155     if ((ret = dot->setAck(0)) != mDot::MDOT_OK) {
00156         logError("failed to disable ACKs %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
00157     }
00158     
00159     logInfo("enabling ADR");
00160     if ((ret = dot->setAdr(0)) != mDot::MDOT_OK) {
00161         logError("failed to enable ADR %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
00162     }
00163     
00164     // save this configuration to the mDot's NVM
00165     logInfo("saving config");
00166     if (! dot->saveConfig()) {
00167         logError("failed to save configuration");
00168     }
00169     //*******************************************
00170     // end of configuration
00171     //*******************************************
00172 
00173     while (true) {
00174         // when wake from interrupt (need to set this yourself), we don't send
00175         // as duty cycle was not adhere'd yet...
00176         if (!from_interrupt) {
00177             send_data();
00178         }
00179         from_interrupt = false;
00180         
00181         // get the next transmission frame (in whole seconds)
00182         uint32_t sleep_time = ceil(static_cast<float>(dot->getNextTxMs()) / 1000.0f);
00183         logInfo("going to sleep for %d seconds", sleep_time);
00184     
00185         // go to deepsleep and wake up automatically sleep_time seconds later
00186         // third argument (false) means SLEEP instead of DEEP_SLEEP mode, 
00187         //      keeps registers & allows wake on Interrupts
00188         dot->sleep(sleep_time, mDot::RTC_ALARM, false);
00189     }
00190 
00191     // also an idea: go to deepsleep and wake up on rising edge of WKUP pin (PA0/XBEE_CTS/XBEE_DIO7)
00192     // dot->sleep(0, mDot::INTERRUPT, true);
00193 }