wotio library demonstrating LoRaWAN connectivity using MultiTech mDot & MultiTech Conduit Gateway
Dependencies: libmDot mbed-rtos mbed
main.cpp@0:eea6446bc510, 2015-10-28 (annotated)
- Committer:
- tuddman
- Date:
- Wed Oct 28 22:04:20 2015 +0000
- Revision:
- 0:eea6446bc510
- Child:
- 1:6b84fe382e27
initial commit of wotio lora application using MultiTech mDot
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
tuddman | 0:eea6446bc510 | 1 | #include "mbed.h" |
tuddman | 0:eea6446bc510 | 2 | #include "mDot.h" |
tuddman | 0:eea6446bc510 | 3 | #include "MTSLog.h" |
tuddman | 0:eea6446bc510 | 4 | #include <string> |
tuddman | 0:eea6446bc510 | 5 | #include <vector> |
tuddman | 0:eea6446bc510 | 6 | #include <algorithm> |
tuddman | 0:eea6446bc510 | 7 | |
tuddman | 0:eea6446bc510 | 8 | // these options must match the settings on your Conduit |
tuddman | 0:eea6446bc510 | 9 | // uncomment the following lines and edit their values to match your configuration |
tuddman | 0:eea6446bc510 | 10 | static std::string config_network_name = "wotioloranetwork"; |
tuddman | 0:eea6446bc510 | 11 | static std::string config_network_pass = "iotandbigdata"; |
tuddman | 0:eea6446bc510 | 12 | static uint8_t config_frequency_sub_band = 7; |
tuddman | 0:eea6446bc510 | 13 | |
tuddman | 0:eea6446bc510 | 14 | |
tuddman | 0:eea6446bc510 | 15 | #define UDK2 1 |
tuddman | 0:eea6446bc510 | 16 | |
tuddman | 0:eea6446bc510 | 17 | #ifdef UDK2 |
tuddman | 0:eea6446bc510 | 18 | DigitalOut led(LED1); |
tuddman | 0:eea6446bc510 | 19 | #else |
tuddman | 0:eea6446bc510 | 20 | DigitalOut led(XBEE_RSSI); |
tuddman | 0:eea6446bc510 | 21 | #endif |
tuddman | 0:eea6446bc510 | 22 | |
tuddman | 0:eea6446bc510 | 23 | Ticker tick; |
tuddman | 0:eea6446bc510 | 24 | |
tuddman | 0:eea6446bc510 | 25 | // callback function to change LED state |
tuddman | 0:eea6446bc510 | 26 | void blink() { |
tuddman | 0:eea6446bc510 | 27 | led = !led; |
tuddman | 0:eea6446bc510 | 28 | } |
tuddman | 0:eea6446bc510 | 29 | |
tuddman | 0:eea6446bc510 | 30 | |
tuddman | 0:eea6446bc510 | 31 | |
tuddman | 0:eea6446bc510 | 32 | int main() { |
tuddman | 0:eea6446bc510 | 33 | int32_t ret; |
tuddman | 0:eea6446bc510 | 34 | mDot* dot; |
tuddman | 0:eea6446bc510 | 35 | std::vector<uint8_t> data; |
tuddman | 0:eea6446bc510 | 36 | std::string data_str = "hello!"; |
tuddman | 0:eea6446bc510 | 37 | |
tuddman | 0:eea6446bc510 | 38 | |
tuddman | 0:eea6446bc510 | 39 | // configure the Ticker to blink the LED on 500ms interval |
tuddman | 0:eea6446bc510 | 40 | tick.attach(&blink, 0.5); |
tuddman | 0:eea6446bc510 | 41 | |
tuddman | 0:eea6446bc510 | 42 | // print the message on 2s interval |
tuddman | 0:eea6446bc510 | 43 | while (true) { |
tuddman | 0:eea6446bc510 | 44 | printf("hello world"); |
tuddman | 0:eea6446bc510 | 45 | wait(2); |
tuddman | 0:eea6446bc510 | 46 | } |
tuddman | 0:eea6446bc510 | 47 | |
tuddman | 0:eea6446bc510 | 48 | |
tuddman | 0:eea6446bc510 | 49 | // get a mDot handle |
tuddman | 0:eea6446bc510 | 50 | dot = mDot::getInstance(); |
tuddman | 0:eea6446bc510 | 51 | |
tuddman | 0:eea6446bc510 | 52 | // print library version information |
tuddman | 0:eea6446bc510 | 53 | logInfo("version: %s", dot->getId().c_str()); |
tuddman | 0:eea6446bc510 | 54 | |
tuddman | 0:eea6446bc510 | 55 | //******************************************* |
tuddman | 0:eea6446bc510 | 56 | // configuration |
tuddman | 0:eea6446bc510 | 57 | //******************************************* |
tuddman | 0:eea6446bc510 | 58 | // reset to default config so we know what state we're in |
tuddman | 0:eea6446bc510 | 59 | dot->resetConfig(); |
tuddman | 0:eea6446bc510 | 60 | |
tuddman | 0:eea6446bc510 | 61 | dot->setLogLevel(mts::MTSLog::INFO_LEVEL); |
tuddman | 0:eea6446bc510 | 62 | |
tuddman | 0:eea6446bc510 | 63 | // set up the mDot with our network information: frequency sub band, network name, and network password |
tuddman | 0:eea6446bc510 | 64 | // these can all be saved in NVM so they don't need to be set every time - see mDot::saveConfig() |
tuddman | 0:eea6446bc510 | 65 | |
tuddman | 0:eea6446bc510 | 66 | // frequency sub band is only applicable in the 915 (US) frequency band |
tuddman | 0:eea6446bc510 | 67 | // 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 |
tuddman | 0:eea6446bc510 | 68 | // if using a gateway that supports all 64 channels, use sub band 0 - the mDot will use all 64 channels |
tuddman | 0:eea6446bc510 | 69 | logInfo("setting frequency sub band"); |
tuddman | 0:eea6446bc510 | 70 | if ((ret = dot->setFrequencySubBand(config_frequency_sub_band)) != mDot::MDOT_OK) { |
tuddman | 0:eea6446bc510 | 71 | logError("failed to set frequency sub band %d:%s", ret, mDot::getReturnCodeString(ret).c_str()); |
tuddman | 0:eea6446bc510 | 72 | } |
tuddman | 0:eea6446bc510 | 73 | |
tuddman | 0:eea6446bc510 | 74 | logInfo("setting network name"); |
tuddman | 0:eea6446bc510 | 75 | if ((ret = dot->setNetworkName(config_network_name)) != mDot::MDOT_OK) { |
tuddman | 0:eea6446bc510 | 76 | logError("failed to set network name %d:%s", ret, mDot::getReturnCodeString(ret).c_str()); |
tuddman | 0:eea6446bc510 | 77 | } |
tuddman | 0:eea6446bc510 | 78 | |
tuddman | 0:eea6446bc510 | 79 | logInfo("setting network password"); |
tuddman | 0:eea6446bc510 | 80 | if ((ret = dot->setNetworkPassphrase(config_network_pass)) != mDot::MDOT_OK) { |
tuddman | 0:eea6446bc510 | 81 | logError("failed to set network password %d:%s", ret, mDot::getReturnCodeString(ret).c_str()); |
tuddman | 0:eea6446bc510 | 82 | } |
tuddman | 0:eea6446bc510 | 83 | |
tuddman | 0:eea6446bc510 | 84 | // a higher spreading factor allows for longer range but lower throughput |
tuddman | 0:eea6446bc510 | 85 | // in the 915 (US) frequency band, spreading factors 7 - 10 are available |
tuddman | 0:eea6446bc510 | 86 | // in the 868 (EU) frequency band, spreading factors 7 - 12 are available |
tuddman | 0:eea6446bc510 | 87 | logInfo("setting TX spreading factor"); |
tuddman | 0:eea6446bc510 | 88 | if ((ret = dot->setTxDataRate(mDot::SF_10)) != mDot::MDOT_OK) { |
tuddman | 0:eea6446bc510 | 89 | logError("failed to set TX datarate %d:%s", ret, mDot::getReturnCodeString(ret).c_str()); |
tuddman | 0:eea6446bc510 | 90 | } |
tuddman | 0:eea6446bc510 | 91 | |
tuddman | 0:eea6446bc510 | 92 | // request receive confirmation of packets from the gateway |
tuddman | 0:eea6446bc510 | 93 | logInfo("enabling ACKs"); |
tuddman | 0:eea6446bc510 | 94 | if ((ret = dot->setAck(1)) != mDot::MDOT_OK) { |
tuddman | 0:eea6446bc510 | 95 | logError("failed to enable ACKs %d:%s", ret, mDot::getReturnCodeString(ret).c_str()); |
tuddman | 0:eea6446bc510 | 96 | } |
tuddman | 0:eea6446bc510 | 97 | |
tuddman | 0:eea6446bc510 | 98 | // set join mode to AUTO_OTA so the mDot doesn't have to rejoin after sleeping |
tuddman | 0:eea6446bc510 | 99 | logInfo("setting join mode to AUTO_OTA"); |
tuddman | 0:eea6446bc510 | 100 | if ((ret = dot->setJoinMode(mDot::AUTO_OTA)) != mDot::MDOT_OK) { |
tuddman | 0:eea6446bc510 | 101 | logError("failed to set join mode %d:%s", ret, mDot::getReturnCodeString(ret).c_str()); |
tuddman | 0:eea6446bc510 | 102 | } |
tuddman | 0:eea6446bc510 | 103 | |
tuddman | 0:eea6446bc510 | 104 | // save this configuration to the mDot's NVM |
tuddman | 0:eea6446bc510 | 105 | logInfo("saving config"); |
tuddman | 0:eea6446bc510 | 106 | if (! dot->saveConfig()) { |
tuddman | 0:eea6446bc510 | 107 | logError("failed to save configuration"); |
tuddman | 0:eea6446bc510 | 108 | } |
tuddman | 0:eea6446bc510 | 109 | //******************************************* |
tuddman | 0:eea6446bc510 | 110 | // end of configuration |
tuddman | 0:eea6446bc510 | 111 | //******************************************* |
tuddman | 0:eea6446bc510 | 112 | |
tuddman | 0:eea6446bc510 | 113 | // format data for sending to the gateway |
tuddman | 0:eea6446bc510 | 114 | for (std::string::iterator it = data_str.begin(); it != data_str.end(); it++) |
tuddman | 0:eea6446bc510 | 115 | data.push_back((uint8_t) *it); |
tuddman | 0:eea6446bc510 | 116 | |
tuddman | 0:eea6446bc510 | 117 | // join the network if not joined |
tuddman | 0:eea6446bc510 | 118 | if (!dot->getNetworkJoinStatus()) { |
tuddman | 0:eea6446bc510 | 119 | logInfo("network not joined, joining network"); |
tuddman | 0:eea6446bc510 | 120 | if ((ret = dot->joinNetwork()) != mDot::MDOT_OK) { |
tuddman | 0:eea6446bc510 | 121 | logError("failed to join network %d:%s", ret, mDot::getReturnCodeString(ret).c_str()); |
tuddman | 0:eea6446bc510 | 122 | } |
tuddman | 0:eea6446bc510 | 123 | } |
tuddman | 0:eea6446bc510 | 124 | if (dot->getNetworkJoinStatus()) { |
tuddman | 0:eea6446bc510 | 125 | // send the data |
tuddman | 0:eea6446bc510 | 126 | // ACKs are enabled by default, so we're expecting to get one back |
tuddman | 0:eea6446bc510 | 127 | if ((ret = dot->send(data)) != mDot::MDOT_OK) { |
tuddman | 0:eea6446bc510 | 128 | logError("failed to send %d:%s", ret, mDot::getReturnCodeString(ret).c_str()); |
tuddman | 0:eea6446bc510 | 129 | } else { |
tuddman | 0:eea6446bc510 | 130 | logInfo("successfully sent data to gateway"); |
tuddman | 0:eea6446bc510 | 131 | } |
tuddman | 0:eea6446bc510 | 132 | } |
tuddman | 0:eea6446bc510 | 133 | |
tuddman | 0:eea6446bc510 | 134 | // in the 868 (EU) frequency band, we need to wait until another channel is available before transmitting again |
tuddman | 0:eea6446bc510 | 135 | uint32_t sleep_time = std::max((uint32_t)10000, (uint32_t)dot->getNextTxMs()) / 1000; |
tuddman | 0:eea6446bc510 | 136 | logInfo("going to sleep..."); |
tuddman | 0:eea6446bc510 | 137 | |
tuddman | 0:eea6446bc510 | 138 | // go to deepsleep and wake up automatically sleep_time seconds later |
tuddman | 0:eea6446bc510 | 139 | dot->sleep(sleep_time, mDot::RTC_ALARM); |
tuddman | 0:eea6446bc510 | 140 | |
tuddman | 0:eea6446bc510 | 141 | // go to deepsleep and wake up on rising edge of WKUP pin (PA0/XBEE_CTS/XBEE_DIO7) |
tuddman | 0:eea6446bc510 | 142 | // dot->sleep(0, mDot::INTERRUPT); |
tuddman | 0:eea6446bc510 | 143 | |
tuddman | 0:eea6446bc510 | 144 | return 0; |
tuddman | 0:eea6446bc510 | 145 | } |