Example of using the mDot UDK with the X-NUCLEO-IKS01A1 shield
Dependencies: mDot_X_NUCLEO_IKS01A1 libmDot-dev-mbed5-deprecated
Hardware
Hardware List
- Multiconnect mDot with programming header (MTDOT-xxx-X1P)
- Multiconnect mDot Developer kit (MTUDK2-ST-MDOT) or SocketModem and Dragonfly Developer kit (MTUDK2-ST-CELL)
- Motion MEMS and environmental sensor expansion board for STM32 Nucleo X-NUCLEO-IKS01A1
Setup
- Install the mDot on the developer board.
- Install the IKS01A1 on the developer board.
- If using a MTUDK-ST-CELL (white board) plug in the AC power adapter
- Connect the microusb power to your development PC
- if using a MTUDK-ST-CELL there are 2 microusb ports. Use the one closest to the serial port.
Your developer board should look like the following:
Software
This example program uses LoRa utility functions from Dot-Examples and the IKS01A1 library from ST Micro.
LoRa Configuration
Senet
By default this program is configured to connect to the Senet network. To connect to Senet you will need to register your mDot's Node ID with the Senet developer portal and change the network_key array in main.cpp.
Others
To connect to a different LoRa gateway change the arrays network_id and network_key. If you are using passphrases, edit the strings network_name and network_key, uncomment the function "update_ota_config_name_phrase" and comment out the function "update_ota_config_id_key".
main.cpp
- Committer:
- pferland
- Date:
- 2016-12-09
- Revision:
- 3:d34798ffcaf8
- Parent:
- 2:d0873bb1255f
- Child:
- 4:142c85980a6f
File content as of revision 3:d34798ffcaf8:
#include "mbed.h" #include "mDot.h" #include "x_nucleo_iks01a1.h" #include "dot_util.h" #include "RadioEvent.h" static std::string network_name = "TestTest"; static std::string network_passphrase = "TestTest"; static uint8_t frequency_sub_band = 1; static bool public_network = false; static uint8_t ack = 0; mDot *dot = NULL; Serial pc(USBTX, USBRX); int main() { // Custom event handler for automatically displaying RX data RadioEvent events; pc.baud(115200); /* Initialize mDot */ mts::MTSLog::setLogLevel(mts::MTSLog::TRACE_LEVEL); dot = mDot::getInstance(); dot->setEvents(&events); if (!dot->getStandbyFlag()) { logInfo("mbed-os library version: %d", MBED_LIBRARY_VERSION); // start from a well-known state logInfo("defaulting Dot configuration"); dot->resetConfig(); dot->resetNetworkSession(); // update configuration if necessary // in AUTO_OTA mode the session is automatically saved, so saveNetworkSession and restoreNetworkSession are not needed if (dot->getJoinMode() != mDot::AUTO_OTA) { logInfo("changing network join mode to AUTO_OTA"); if (dot->setJoinMode(mDot::AUTO_OTA) != mDot::MDOT_OK) { logError("failed to set network join mode to AUTO_OTA"); } } // in OTA and AUTO_OTA join modes, the credentials can be passed to the library as a name and passphrase or an ID and KEY // only one method or the other should be used! // network ID = crc64(network name) // network KEY = cmac(network passphrase) update_ota_config_name_phrase(network_name, network_passphrase, frequency_sub_band, public_network, ack); // configure network link checks // network link checks are a good alternative to requiring the gateway to ACK every packet and should allow a single gateway to handle more Dots // check the link every count packets // declare the Dot disconnected after threshold failed link checks // for count = 3 and threshold = 5, the Dot will be considered disconnected after 15 missed packets in a row update_network_link_check_config(3, 5); // save changes to configuration logInfo("saving configuration"); if (!dot->saveConfig()) { logError("failed to save configuration"); } // display configuration display_config(); } else { // restore the saved session if the dot woke from deepsleep mode // useful to use with deepsleep because session info is otherwise lost when the dot enters deepsleep logInfo("restoring network session from NVM"); dot->restoreNetworkSession(); } /* Instantiate the expansion board */ X_NUCLEO_IKS01A1 *mems_expansion_board = X_NUCLEO_IKS01A1::Instance(I2C_SDA, I2C_SCL, PC_1); /* Retrieve the composing elements of the expansion board */ GyroSensor *gyroscope = mems_expansion_board->GetGyroscope(); MotionSensor *accelerometer = mems_expansion_board->GetAccelerometer(); MagneticSensor *magnetometer = mems_expansion_board->magnetometer; HumiditySensor *humidity_sensor = mems_expansion_board->ht_sensor; PressureSensor *pressure_sensor = mems_expansion_board->pt_sensor; TempSensor *temp_sensor1 = mems_expansion_board->ht_sensor; TempSensor *temp_sensor2 = mems_expansion_board->pt_sensor; while (true) { std::vector<uint8_t> tx_data; // join network if not joined if (!dot->getNetworkJoinStatus()) { join_network(); } // Retrieve sensor data and prepare the packet. //temp floats float value1, value2; // HTS221 Humidity sensor temp_sensor1->GetTemperature(&value1); humidity_sensor->GetHumidity(&value2); //serialize data and append to packet tx_data.push_back(uint8_t(0xFF & *((uint32_t*)(&value1)))); tx_data.push_back(uint8_t((0xFF << 2 ) & *((uint32_t*)(&value1)))); tx_data.push_back(uint8_t((0xFF << 4 ) & *((uint32_t*)(&value1)))); tx_data.push_back(uint8_t((0xFF << 6 ) & *((uint32_t*)(&value1)))); logInfo("Temperature data %d", value1); send_data(tx_data); // if going into deepsleep mode, save the session so we don't need to join again after waking up // not necessary if going into sleep mode since RAM is retained logInfo("saving network session to NVM"); dot->saveNetworkSession(); // ONLY ONE of the three functions below should be uncommented depending on the desired wakeup method //sleep_wake_rtc_only(deep_sleep); //sleep_wake_interrupt_only(deep_sleep); sleep_wake_rtc_or_interrupt(false); } return 0; }