Added a couple of options

OpenTracker/OpenTracker.ino

@@ -32,6 +32,7 @@ int SEND_DATA = 1;
 long time_start, time_stop, time_diff;             //count execution time to trigger interval
 int interval_count = 0;         //current interval count (increased on each data collection and reset after sending)
 int sms_check_count = 0;        //counter for SMS check (increased on each cycle and reset after check)
+int engine_off_send_count = 0;  //counter for sending data when the ignition is off
 
 char data_current[DATA_LIMIT+1];  //data collected in one go, max 2500 chars
 int data_index = 0;             //current data index (where last data record stopped)
@@ -207,7 +208,7 @@ void loop() {
         // force sending last data
         interval_count = config.interval_send;
         collect_data(IGNT_STAT);
-        send_data();
+        send_data(0);
       }
       engineRunning = 1;
       // save power when engine is off
@@ -242,15 +243,17 @@ void loop() {
   //start counting time
   time_start = millis();
 
-  if(ALWAYS_ON || IGNT_STAT == 0) {
+  if(ALWAYS_ON || IGNT_STAT == 0 || (ENGINE_OFF_INTERVAL_COUNT >0 && ++engine_off_send_count >= ENGINE_OFF_INTERVAL_COUNT)) {
+    engine_off_send_count = 0;
+
     if(IGNT_STAT == 0) {
       debug_print(F("Ignition is ON!"));
       // Insert here only code that should be processed when Ignition is ON
     }
 
     //collecting GPS data
     collect_data(IGNT_STAT);
-    send_data();
+    send_data(IGNT_STAT);
 
 #if SMS_CHECK_INTERVAL_ENGINE_RUNNING > 0
     // perform SMS check
@@ -288,8 +291,10 @@ void loop() {
     }
 #endif
   }
-
-  status_led();
+
+  if (ENABLE_STATUS_LED) {
+    status_led();
+  }
 
   debug_check_input();
 

OpenTracker/data.ino

@@ -183,12 +183,25 @@ void collect_all_data(int ignitionState) {
   data_field_restart();
 
   // append battery level to data packet
-  if(DATA_INCLUDE_BATTERY_LEVEL) {
-    data_field_separator(',');
+  if(DATA_INCLUDE_BATTERY_LEVEL || BATTERY_LOW_KILL_POWER > 0) {
     float sensorValue = analog_input_voltage(AIN_S_INLEVEL, HIGH);
     char batteryLevel[10];
     dtostrf(sensorValue,2,2,batteryLevel);
-    data_append_string(batteryLevel);
+
+    if (DATA_INCLUDE_BATTERY_LEVEL) {
+      data_field_separator(',');
+      data_append_string(batteryLevel);
+    }
+
+    if (BATTERY_LOW_KILL_POWER > 0 && sensorValue < BATTERY_LOW_KILL_POWER) {
+      if (strlen(BATTERY_LOW_SMS_NUMBER) >0) {
+        char buf[100];
+        snprintf((char *)&buf, sizeof(buf), "voltage dropped below %s - powering off", batteryLevel);
+        sms_send_msg(buf, BATTERY_LOW_SMS_NUMBER);
+      }
+
+      power_cutoff = 1;
+    }
   }
 
   // ignition state
@@ -297,7 +310,7 @@ void collect_all_data_raw(int ignitionState) {
 /**
  * This function send collected data using HTTP or TCP
  */
-void send_data() {
+void send_data(int force) {
   debug_print(F("send_data() started"));
 
   debug_print(F("Current:"));
@@ -306,7 +319,11 @@ void send_data() {
   interval_count++;
   debug_print(F("Data accumulated:"));
   debug_print(interval_count);
-
+
+  if (force) {
+    interval_count = config.interval_send;
+  }
+
   // send accumulated data
   if (interval_count >= config.interval_send) {
     // if data send disabled, use storage

OpenTracker/sms.ino

@@ -288,8 +288,10 @@ void sms_cmd_run(char *cmd, char *phone) {
   if(strcmp(cmd, "locate") == 0) {
     debug_print(F("sms_cmd_run(): Locate command detected"));
 
-    if(LOCATE_COMMAND_FORMAT_IOS) {
+    if(LOCATE_COMMAND_FORMAT_IOS == 1) {
       snprintf(msg,sizeof(msg),"comgooglemaps://?center=%s,%s",lat_current,lon_current);
+    } else if(LOCATE_COMMAND_FORMAT_IOS == 2) {
+      snprintf(msg,sizeof(msg),"maps:ll=%s,%s&q=car",lat_current,lon_current);
     } else {
       snprintf(msg,sizeof(msg),"https://maps.google.com/maps/place/%s,%s",lat_current,lon_current);
     }

OpenTracker/tracker.h.example

@@ -8,6 +8,7 @@
 //default settings (can be overwritten and stored in EEPRom)
 #define INTERVAL  5000        //how often to collect data (milli sec, 600000 - 10 mins)
 #define INTERVAL_SEND 4       //how many times to collect data before sending (times), sending interval interval*interval_send (4 default)
+#define ENGINE_OFF_INTERVAL_COUNT 3600   //how often to send data when the ignition is off
 #define POWERSAVE 1           //enable power saving mode with engine off (turn off modem data session, slow down CPU)
 #define KEY "cSQ88qShwC3"     //key for connection, will be sent with every data transmission - max 12 chars
 #define DATA_LIMIT 2500       //current data limit, data collected before sending to remote server can not exceed this
@@ -19,7 +20,7 @@
 #define SMS_CHECK_INTERVAL_COUNT          6 // 0=disable SMS check with engine off, 1-N=check every N cycles of interval time
 #define SMS_CHECK_INTERVAL_ENGINE_RUNNING 2 // 0=disable SMS check with engine running, 1-N=check every N cycles of interval time
 
-#define LOCATE_COMMAND_FORMAT_IOS 0         // 1=google maps links will be sent as comgooglemaps://, 0=use format https://maps.google...
+#define LOCATE_COMMAND_FORMAT_IOS 0         // 0=use format https://maps.google... 1=google maps links will be sent as comgooglemaps://, 2=apple maps format
 
 #define GSM_USE_QUECLOCATOR_TIMEOUT 10      // 0=don't use QuecLocator, 1-300=timeout for server reply
 #define GSM_USE_NTP_SERVER "pool.ntp.org"   // use Network Time Protocol server for modem clock update (undefine to disable)
@@ -102,3 +103,7 @@
 #define KNOWN_APN_SCAN_MODE 1       // 0=check GPRS context only, 2=attempt only server connection, 1=use both in sequence
 #define KNOWN_APN_SCAN_USE_RESET 0  // 1=reset modem to change APN, 0=change APN without reset
 
+#define ENABLE_STATUS_LED 1
+
+#define BATTERY_LOW_KILL_POWER 0  // shutdown if the battery falls below this voltage, 0 = disabled
+#define BATTERY_LOW_SMS_NUMBER "" // send SMS to this number before shutting down (blank = disabled)