Demonstration TTN OTAA node
Dependencies: BME280 DS1820 libmDot mbed-rtos mbed
This is an example application for the MultiTech mDot and connects to The Things Network using Over The Air Activation (OTAA). It sends data from a Dallas Semiconductors DS18B20 OneWire temperature sensor.
Register a device and generate a random AppKey for the currently used application Id: (You need to use your own device IDs, the ones shown here are examples only)
./ttnctl devices register 0080000000000000 INFO Generating random AppKey... INFO Registered device AppKey=000102030405060708090A0B0C0D0E0F DevEUI=0080000000000000
or to specify the same AppKey for a new device or to reregister the same device again:
./ttnctl devices register 0080000000000000 000102030405060708090A0B0C0D0E0F
./ttnctl devices info 0080000000000000 Dynamic device:
AppEUI: 70B3D50000000000 {0x70, 0xB3, 0xD5, 0x00, 0x00, 0x00, 0x00, 0x00}
DevEUI: 0080000000000000 {0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}
AppKey: 000102030405060708090A0B0C0D0E0F {0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F}
Copy the AppEUI and AppKey values provided in hex array notation above to the AppEUI and AppKey parameters below.
Diff: main.cpp
- Revision:
- 1:45cec6aea002
- Parent:
- 0:5a0b43f3b143
- Child:
- 2:9db840d12557
diff -r 5a0b43f3b143 -r 45cec6aea002 main.cpp --- a/main.cpp Sun Aug 23 21:28:18 2015 +0000 +++ b/main.cpp Thu Sep 03 23:36:45 2015 +0000 @@ -26,11 +26,14 @@ // /var/config/lora/lora-network-server.conf static std::string config_network_name = "ThingInnovations"; static std::string config_network_pass = "donkey123"; -static uint8_t config_frequency_sub_band = 1; +//static uint8_t config_frequency_sub_band = 1; // mDot/dev board activity LED -#define ACTIVITY_LED PA_0 -#define DATA_PIN PC_13 +//#define ACTIVITY_LED PA_0 +// D13 +#define DATA_PIN PA_5 +// A0 +//#define DATA_PIN PB_1 // must use the hardware SPI pins //SPI device(SPI_MOSI, SPI_MISO, SPI_SCK); @@ -55,75 +58,104 @@ std::vector<uint8_t> send_data; std::vector<uint8_t> recv_data; - int32_t next_tx; - int32_t wait_time = 2; +// int32_t next_tx; +// int32_t wait_time = 2; // uint8_t iterations = 99; - uint16_t txCount = 0; - uint16_t txFailCount = 0; - uint16_t rxCount = 0; - uint16_t rxOkCount = 0; - uint16_t noRxCount = 0; - uint16_t rxFailCount = 0; - bool initStatus = true; // All intialised OK until told otherwise +// uint16_t txCount = 0; +// uint16_t txFailCount = 0; +// uint16_t rxCount = 0; +// uint16_t rxOkCount = 0; +// uint16_t noRxCount = 0; +// uint16_t rxFailCount = 0; +// bool initStatus = true; // All intialised OK until told otherwise float temperature = 0.0; - + pc.baud(115200); pc.printf("mDot LoRa Temperature sensor\n\r"); -/* wait_ms(5000); - for(int i=0; i<10; i++ ) - pc.printf("."); - pc.printf("\n\r"); -*/ -/* while( 1 ) { - // This takes upto 750mS, way too long. Change to 9 bit resolution if not already used. - - probe.convertTemperature(true, DS1820::all_devices); //Start temperature conversion, wait until ready -// printf("It is %3.1fC\r\n", probe.temperature()); - // Output data as JSON e.g. {"temperature":"21.3"} - temperature = probe.temperature(); - pc.printf("Temperature %3.1f\r\n", temperature ); - wait_ms(2000); - } -*/ -//#ifdef bollocks + /* wait_ms(5000); + for(int i=0; i<10; i++ ) + pc.printf("."); + pc.printf("\n\r"); + */ + /* + while( 1 ) { + // This takes upto 750mS, way too long. Change to 9 bit resolution if not already used. + + probe.convertTemperature(true, DS1820::all_devices); //Start temperature conversion, wait until ready + // printf("It is %3.1fC\r\n", probe.temperature()); + // Output data as JSON e.g. {"temperature":"21.3"} + temperature = probe.temperature(); + pc.printf("Temperature %3.1f\r\n", temperature ); + wait_ms(2000); + } + + #ifdef bollocks + */ // get a mDot handle dot = mDot::getInstance(); dot->setLogLevel(MTSLog::TRACE_LEVEL); - // reset to default config so we know what state we're in - dot->resetConfig(); + logInfo("Checking Config"); + + // Test if we've already saved the config + std::string configNetworkName = dot->getNetworkName(); + + // Check pin, if low then reset config. + + + if( config_network_name.compare(configNetworkName) != 0 ) { + // Not saved config, reset + logInfo("Setting Config"); - // Set byte order - AEP less than 1.0.30, currently using 1.0.25Beta - dot->setJoinByteOrder(mDot::MSB); + // reset to default config so we know what state we're in + dot->resetConfig(); + + // Set byte order - AEP less than 1.0.30 +// dot->setJoinByteOrder(mDot::MSB); + dot->setJoinByteOrder(mDot::LSB); - // If on developer board then you can enable activity LED - // Currently no spare pins that LEDs are connected too. + logInfo("setting Join mode"); + if ((ret = dot->setJoinMode(mDot::AUTO_OTA)) != mDot::MDOT_OK) { + logError("failed to set Join Mode %d:%s", ret, mDot::getReturnCodeString(ret).c_str()); + } + + // If on developer board then you can enable activity LED + // Currently no spare pins that LEDs are connected too. // dot->setActivityLedPin( ACTIVITY_LED ); // dot->setActivityLedEnable(false); - dot->setJoinRetries( 5 ); - dot->setTxDataRate( mDot::SF_9 ); - dot->setTxPower( 14 ); -// dot->setAck( 0 ); // 1 retries on Ack, 0 to disable + dot->setJoinRetries( 5 ); + dot->setTxDataRate( mDot::SF_9 ); + dot->setTxPower( 14 ); + dot->setAck( 0 ); // 1 retries on Ack, 0 to disable - if ((ret = dot->setFrequencySubBand(config_frequency_sub_band)) != mDot::MDOT_OK) { - initStatus = false; +// Not applicable for 868MHz in EU +// if ((ret = dot->setFrequencySubBand(config_frequency_sub_band)) != mDot::MDOT_OK) { +// initStatus = false; // logError(dot, "failed to set frequency sub band", ret); - } +// } + + if ((ret = dot->setNetworkName(config_network_name)) != mDot::MDOT_OK) { +// initStatus = false; + logError("failed to set network name %d:%s", ret, mDot::getReturnCodeString(ret).c_str()); + } - if ((ret = dot->setNetworkName(config_network_name)) != mDot::MDOT_OK) { - initStatus = false; -// logError(dot, "failed to set network name", ret); + if ((ret = dot->setNetworkPassphrase(config_network_pass)) != mDot::MDOT_OK) { +// initStatus = false; + logError("failed to set network password %d:%s", ret, mDot::getReturnCodeString(ret).c_str()); + } + + logInfo("Saving Config"); + + // Save config + if (! dot->saveConfig()) { + logError("failed to save configuration"); + } + } else { + logInfo("Using existing Config"); } - - if ((ret = dot->setNetworkPassphrase(config_network_pass)) != mDot::MDOT_OK) { - initStatus = false; -// logError(dot, "failed to set network password", ret); - } - // wait_ms(2000); - // Display protocol/connection info while ((ret = dot->joinNetwork()) != mDot::MDOT_OK) { @@ -131,19 +163,19 @@ //wait(2); wait_ms(dot->getNextTxMs() + 1); } - + probe.setResolution(9); char dataBuf[50]; // for (uint8_t i = 0; i < iterations; i++) { while( 1 ) { // This takes upto 750mS, way too long. Change to 9 bit resolution if not already used. - + probe.convertTemperature(true, DS1820::all_devices); //Start temperature conversion, wait until ready // printf("It is %3.1fC\r\n", probe.temperature()); // Output data as JSON e.g. {"temperature":"21.3"} temperature = probe.temperature(); - sprintf(dataBuf, "{\"temperature\":%3.1f}", temperature ); + sprintf(dataBuf, "{\"tmp\":%3.1f}", temperature ); send_data.clear(); // probably not the most efficent way to do this for( int i=0; i< strlen(dataBuf); i++ ) @@ -151,37 +183,27 @@ if ((ret = dot->send(send_data)) != mDot::MDOT_OK) { logError("failed to send: [%d][%s]", ret, mDot::getReturnCodeString(ret).c_str()); - txFailCount++; + } else { - txCount++; + logInfo("send data: %s", Text::bin2hexString(send_data).c_str()); - /* - if ((ret = dot->recv(recv_data)) != mDot::MDOT_OK) { - logError("failed to recv: [%d][%s]", ret, mDot::getReturnCodeString(ret).c_str()); - noRxCount++; - } else { - // Received something - logInfo("recv data: %s", Text::bin2hexString(recv_data).c_str()); - rxCount++; - if (recv_data == send_data) { - rxOkCount++; - logInfo("recv data matches"); - } else { - rxFailCount++; - logInfo("recv data failed to match"); - } - } - recv_data.clear(); - */ + } -// TODO: Should really sleep here and wakeup after a set interval. + // Should sleep here and wakeup after a set interval. + + uint32_t sleep_time = 60; //(dot->getNextTxMs() / 1000) + 10; + logInfo("going to sleep..."); - next_tx = dot->getNextTxMs() + 1; - logInfo("waiting %ld ms to transmit again", next_tx); - wait_ms(next_tx); - logInfo("waiting another %d seconds", wait_time); - wait(wait_time); + // go to sleep and wake up automatically sleep_time seconds later + dot->sleep(sleep_time, mDot::RTC_ALARM, false); + /* + next_tx = dot->getNextTxMs() + 1; + logInfo("waiting %ld ms to transmit again", next_tx); + wait_ms(next_tx); + logInfo("waiting another %d seconds", wait_time); + wait(wait_time); + */ } //#endif return 0;