This is a fork of the Multitech mDot LoRa Connect Example modified to log data or send from Temperature and Light Sensors connected to the mDot UDK
Dependencies: libmDot mbed-rtos mbed
Fork of mDot_LoRa_Connect_Example by
Diff: main.cpp
- Revision:
- 7:928e848b92c8
- Parent:
- 6:f0b6fea36e28
--- a/main.cpp Tue Apr 12 23:44:25 2016 +0000 +++ b/main.cpp Thu Jun 16 00:37:16 2016 +0000 @@ -5,17 +5,58 @@ #include <vector> #include <algorithm> +// Connect the Grove Shield to the UDK +// Connect the Grove Temperature Sensor to A0 on Shield +// http://www.seeedstudio.com/wiki/Grove_-_Temperature_Sensor +// Connect the Grove Light Sensor to the A1 +// http://www.seeedstudio.com/wiki/Grove_-_Light_Sensor + +AnalogIn in(PB_1); // This corresponds to A0 Connector on the Grove Shield +AnalogIn light(PB_0); // This corresponds to A1 Connector on the Grove Shield + +float temperature; +float llevel; + // these options must match the settings on your Conduit // uncomment the following lines and edit their values to match your configuration -static std::string config_network_name = "<lora network id>"; -static std::string config_network_pass = "<lora network key>"; -static uint8_t config_frequency_sub_band = 1; +static std::string config_network_name = "ATLANTA_TTN"; +static std::string config_network_pass = "ATLANTA_TTN"; +static uint8_t config_frequency_sub_band = 7; + +float readTemperature(){ + float temp; + int B=39751; + float resistance; + int a; + // Read & Print Temperature + a = in.read_u16(); + //printf("analog value: %i \r\n", a); + resistance = (float)(65534-a)*10000/a; //get the resistance of the sensor; + temp=1/(log(resistance/10000)/B+1/298.15)-273.15;//convert to temperature via datasheet + //logInfo("Temperature: %f, temp); + return temp; +} + +float readLightSensor() { + float sensorValue; + float rsensor; + sensorValue = light.read(); + rsensor = (float)(1023-sensorValue)*10/sensorValue; + printf("Sensor reading: %2.2f - %2.2f\r\n", sensorValue, rsensor); + + return rsensor; + +} + int main() { int32_t ret; mDot* dot; std::vector<uint8_t> data; std::string data_str = "hello!"; + char string_buffer[64]; + std::string separator_str = ","; + std::string temp_cls = "TC"; // get a mDot handle dot = mDot::getInstance(); @@ -27,10 +68,11 @@ // configuration //******************************************* // reset to default config so we know what state we're in - dot->resetConfig(); + //dot->resetConfig(); - dot->setLogLevel(mts::MTSLog::INFO_LEVEL); - + //dot->setLogLevel(mts::MTSLog::INFO_LEVEL); + dot->setLogLevel(mts::MTSLog::TRACE_LEVEL); + // 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() @@ -38,10 +80,10 @@ // 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 // if using a gateway that supports all 64 channels, use sub band 0 - the mDot will use all 64 channels -// logInfo("setting to public network"); -// if ((ret = dot->setPublicNetwork(true)) != mDot::MDOT_OK) { -// logError("failed to set public network %d:%s", ret, mDot::getReturnCodeString(ret).c_str()); -// } + logInfo("setting to public network"); + if ((ret = dot->setPublicNetwork(true)) != mDot::MDOT_OK) { + logError("failed to set public network %d:%s", ret, mDot::getReturnCodeString(ret).c_str()); + } logInfo("setting frequency sub band"); if ((ret = dot->setFrequencySubBand(config_frequency_sub_band)) != mDot::MDOT_OK) { @@ -90,10 +132,29 @@ } // format data for sending to the gateway - for (std::string::iterator it = data_str.begin(); it != data_str.end(); it++) - data.push_back((uint8_t) *it); + //for (std::string::iterator it = data_str.begin(); it != data_str.end(); it++) + // data.push_back((uint8_t) *it); while (true) { + data.clear(); + temperature = readTemperature(); + + // Temperature + sprintf(string_buffer, "%s%3.2f", "TC:", temperature); + //sprintf(string_buffer, "%3.1f", temperature); + for (int i = 0; i<strlen(string_buffer); i++) + { + data.push_back(((char*)string_buffer)[i]); + } + + logDebug("Sending LoRa message, length: %d", data.size()); + logDebug("sending data: "); + for(int i = 0; i < data.size(); i++) + { + printf("%c", data[i]); + } + printf("\n"); + // send the data to the gateway if ((ret = dot->send(data)) != mDot::MDOT_OK) { logError("failed to send", ret, mDot::getReturnCodeString(ret).c_str()); @@ -103,6 +164,33 @@ // in the 868 (EU) frequency band, we need to wait until another channel is available before transmitting again osDelay(std::max((uint32_t)5000, (uint32_t)dot->getNextTxMs())); + + data.clear(); + // Light Level + llevel = readLightSensor(); + sprintf(string_buffer, "%s%5.1f", "LL:", llevel); + for (int i = 0; i<strlen(string_buffer); i++) + { + data.push_back(((char*)string_buffer)[i]); + } + logDebug("Sending LoRa message, length: %d", data.size()); + logDebug("sending data: "); + for(int i = 0; i < data.size(); i++) + { + printf("%c", data[i]); + } + printf("\n"); + + // send the data to the gateway + if ((ret = dot->send(data)) != mDot::MDOT_OK) { + logError("failed to send", ret, mDot::getReturnCodeString(ret).c_str()); + } else { + logInfo("successfully sent data to gateway"); + } + + // in the 868 (EU) frequency band, we need to wait until another channel is available before transmitting again + osDelay(std::max((uint32_t)5000, (uint32_t)dot->getNextTxMs())); + } return 0;