This program connects to the The Things Network backend in OTAA Mode. It logs sensor values from a BME 280 to the backend. Tried adding support for Grove GPS using SerialGPS library but it is not working - conflicting with mbed-rtos, so it commented. Deep Sleep for mDot implemented BUT avoiding reprogramming of the mDot config is NOT working.

Dependencies:   BME280 SerialGPS libmDot mbed-rtos mbed

Revision:
10:8071e1ae92ac
Parent:
8:c17b68b03791
Child:
11:3481e24747e2
--- a/main.cpp	Fri Jul 08 03:27:36 2016 +0000
+++ b/main.cpp	Sat Jul 09 16:38:21 2016 +0000
@@ -3,6 +3,8 @@
  * to the mDot UDK.
  * Additionally sample code to compress the data
  * for use with LPWANs such as LoRa
+ * Uses Standard Firmware from Multitech
+ * 
 *****************************************************/
  
  #include "mbed.h"
@@ -10,44 +12,15 @@
  #include "MTSLog.h"
  #include "MTSText.h"
  #include <string>
-
+ #include "LoRa.h"
  #include "BME280.h"
- //#include "SerialGPS.h"
+//#include "SerialGPS.h"
  
-using namespace mts;
+//using namespace mts;
  
 #define MIN(a,b) (((a)<(b))?(a):(b))
 #define MAX(a,b) (((a)>(b))?(a):(b))
 
-// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
-
-// Values as used by The Things Network
-// Application session key
-uint8_t AppSKey[16]= { 0x91, 0x5F, 0xCD, 0x2A, 0xED, 0x8E, 0x0C, 0x2B, 0x30, 0xEF, 0x35, 0x8D, 0xF7, 0xE7, 0x89, 0x0A };
-// Network session key
-uint8_t NwkSKey[16]= { 0x60, 0xBF, 0x44, 0xA9, 0x56, 0x0A, 0x4C, 0xB4, 0xF2, 0xEB, 0xB1, 0x6B, 0x9A, 0x2C, 0x57, 0x32 };
-
-// App Key 1DD7BB3D3E43ED13029996BEC25BF190
-uint8_t AppKey[16] = {0x1D, 0xD7, 0xBB, 0x3D, 0x3E, 0x43, 0xED, 0x13, 0x02, 0x99, 0x96, 0xBE, 0xC2, 0x5B, 0xF1, 0x90};
-// App EUI 70B3D57ED00005D5
-uint8_t AppEUI[8] = {0x70, 0xB3, 0xD5, 0x7E, 0xD0, 0x00, 0x05, 0xD5};
-
- 
-// Network Address - Get your own address range at http://thethingsnetwork.org/wiki/AddressSpace
-//uint8_t NetworkAddr[4]= {0x02,0x01,0x6C,0x02};      // Our Network address or Node ID
-uint8_t NetworkAddr[4] = { 0x08, 0xBE, 0xAB, 0x8A }; 
- 
-// Some defines for the LoRa configuration
-#define LORA_ACK 0
-#define LORA_TXPOWER 20
- 
-//Ignoring sub band for EU modules.
-static uint8_t config_frequency_sub_band = 7;
-
-// <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
-
-
- 
 // mDot UDK Specific
 // MDot Pinout: https://developer.mbed.org/platforms/MTS-mDot-F411/#pinout-diagram
 // Uncomment this line if using a full sized UDK2.0 instead of a Micro UDK
@@ -65,8 +38,6 @@
 BME280 b280(PC_9, PA_8);
 AnalogIn light(PB_0); // This corresponds to A1 Connector on the Grove Shield
 
-// Serial via USB for debugging only
-//Serial pc(USBTX,USBRX);
 
 // Function Declarations
 void endLessTestLoop();
@@ -75,7 +46,7 @@
 void readandprintBME280();
 float readLightSensor();
 void mDotConfig();
-void mDotGotoDeepSleep(int seconds);
+void mDotGotoDeepSleep(int seconds, bool sleepState);
 void mDotConfigPrint();
 void initSerialGPS();
 void setupNetwork();
@@ -93,13 +64,13 @@
 int main(){
 
     // Simple Test Functions, "Hello World on UDK
-    setUpLEDBlink();
+    //setUpLEDBlink();
+    
     mDotConfig();
-    setupNetwork();
-    //wait(15);
+    // setupNetwork(); // Moved to mDotConfig
     joinNetwork();
     sendData();
-    // endLessTestLoop();
+    //endLessTestLoop();
     
     return 0;
 }
@@ -115,9 +86,6 @@
     float humidity;
     int32_t ret;
  
-    logInfo("Joined Network"); 
-
-    
     while (true) {
         data.clear();
     
@@ -230,8 +198,11 @@
             logInfo("successfully sent data to gateway");
         }
 
+        // Goto Sleep, commenting out the osDelay since next Tx would be after waking up
+        mDotGotoDeepSleep(5, true);
+
         // 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()));
+        //osDelay(std::max((uint32_t)5000, (uint32_t)dot->getNextTxMs()));
         
     }
     
@@ -246,19 +217,30 @@
 void mDotConfig() {
     // get a mDot handle
     dot = mDot::getInstance();
-    //dot->setLogLevel(mts::MTSLog::INFO_LEVEL);
-    dot->setLogLevel(mts::MTSLog::TRACE_LEVEL);
+    // Test if we've already saved the config
+    logInfo("Checking Config");
    
+    std::string configNetworkName = dot->getNetworkName();
+    printf("Network Name is %s: \n", (char*)configNetworkName.c_str());
+    printf("Network Name is %s: \n", (char*)(config_network_name.c_str()));
+
+    if (configNetworkName.compare(config_network_name) != 0) {
+        logInfo("Setting Up Config");
+        setupNetwork();
+        
+    } else {
+        logInfo("Config is good, skipping setting up... ");
+    }
 }
 
-void mDotGotoDeepSleep(int seconds) {
-    // logInfo("input to sleep routine %d", seconds);
+void mDotGotoDeepSleep(int seconds, bool sleepState) {
+
     // Should  sleep here and wakeup after a set interval.
     uint32_t sleep_time = MAX((dot->getNextTxMs() / 1000), seconds);
-    logInfo("going to sleep for %d seconds", sleep_time);
+    logInfo("Going to sleep for %d seconds", sleep_time);
+
     // go to sleep and wake up automatically sleep_time seconds later
-    //dot->sleep(sleep_time, mDot::RTC_ALARM, false);
-    dot->sleep(sleep_time, mDot::RTC_ALARM);
+    dot->sleep(sleep_time, mDot::RTC_ALARM, sleepState);
 
 }
 void setupNetwork(){
@@ -273,20 +255,11 @@
     std::vector<uint8_t> appEUI;
     std::vector<uint8_t> appKey;
     
-    // get a mDot handle
-    // dot = mDot::getInstance();
-    
+       
     //*******************************************
     // configuration
     //*******************************************
     
-    //dot->setLogLevel(mts::MTSLog::INFO_LEVEL);
-    //dot->setLogLevel(mts::MTSLog::TRACE_LEVEL);
-    //logInfo("Checking Config");
- 
-    // Test if we've already saved the config
-    std::string configNetworkName = dot->getNetworkName();
- 
     uint8_t *it = NwkSKey;
     for (uint8_t i = 0; i<16; i++)
         nwkSKey.push_back((uint8_t) *it++);
@@ -310,15 +283,28 @@
     logInfo("Resetting Config");
     // reset to default config so we know what state we're in
     dot->resetConfig();
+
+    //dot->setLogLevel(mts::MTSLog::INFO_LEVEL);
+    dot->setLogLevel(mts::MTSLog::TRACE_LEVEL);
  
-    // Set byte order - AEP less than 1.0.30
-    //dot->setJoinByteOrder(mDot::MSB);       // This is default for > 1.0.30 Conduit
+    logInfo("Setting Network name");
+    if ((ret = dot->setNetworkName(config_network_name)) != mDot::MDOT_OK) {
+        logError("failed to set network name %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
+    }
+    
+    logInfo("Setting Network password");
+    if ((ret = dot->setNetworkPassphrase(config_network_pass)) != mDot::MDOT_OK) {
+        logError("failed to set network password %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
+    }
+
+    // Set byte order 
+    dot->setJoinByteOrder(mDot::LSB);      
  
     // Set Spreading Factor, higher is lower data rate, smaller packets but longer range
     // Lower is higher data rate, larger packets and shorter range.
     logInfo("Set SF");
-    //if((ret = dot->setTxDataRate( mDot::SF_10 )) != mDot::MDOT_OK) {
-    if((ret = dot->setTxDataRate( mDot::SF_8 )) != mDot::MDOT_OK) { 
+    if((ret = dot->setTxDataRate( mDot::SF_10 )) != mDot::MDOT_OK) {
+    //if((ret = dot->setTxDataRate( mDot::SF_8 )) != mDot::MDOT_OK) { 
         logError("Failed to set SF %d:%s", ret, mDot::getReturnCodeString(ret).c_str());
     }
  
@@ -388,30 +374,23 @@
     //*******************************************
     
     mDotConfigPrint();
-
-    //char dataBuf[50];
-    
-    
-    
     
 }
 
 void joinNetwork() {
     int32_t ret;
+
     logInfo("Joining Network");
-    
     while ((ret = dot->joinNetwork()) != mDot::MDOT_OK) {
         logError("failed to join network [%d][%s]", ret, mDot::getReturnCodeString(ret).c_str());
         //wait_ms(dot->getNextTxMs() + 1);
         osDelay(std::max((uint32_t)1000, (uint32_t)dot->getNextTxMs()));
     }
+
     logInfo("Joined Network"); 
-    wait(5);
     
 }
 
-
-
 void mDotConfigPrint() {
 
     // Display what is set
@@ -452,6 +431,9 @@
  
     // Display LoRa parameters
     // Display label and values in different colours, show pretty values not numeric values where applicable
+     
+    printf("Network Name: %s\n", (char *)(dot->getNetworkName()).c_str());
+    printf("Network Name: %s\n", (char *)(dot->getNetworkPassphrase()).c_str());
     printf("Public Network: %s\n", (char*)(dot->getPublicNetwork() ? "Yes" : "No") );
     printf("Frequency: %s\n", (char*)mDot::FrequencyBandStr(dot->getFrequencyBand()).c_str() );
     printf("Sub Band: %s\n", (char*)mDot::FrequencySubBandStr(dot->getFrequencySubBand()).c_str() );
@@ -466,12 +448,8 @@
     printf("CRC: %s, ", (dot->getCrc() ? "Y" : "N") );
     printf("Ack: %s\n", (dot->getAck() ? "Y" : "N")  );
 
-
-
 }
 
-
-
 /*****************************************************
  *         Sensor Functions
  ****************************************************/
@@ -530,9 +508,8 @@
         //printf("BME280 Sensor: \n");
         readandprintBME280();
         
-        wait(5);
-        //mDotGotoDeepSleep(60);
-        //wait(5);
+        mDotGotoDeepSleep(60, true);
+        //wait(10);
        
     }
 }