init

Dependencies:   aconno_I2C Lis2dh12 WatchdogTimer

main.cpp

Committer:
pathfindr
Date:
2019-01-15
Revision:
36:8e359069192b
Parent:
35:d9421d57d116
Child:
37:505ef618f06c

File content as of revision 36:8e359069192b:

#include "main.h"

//------------------------------------------------------------------------------
//DEFINES
//------------------------------------------------------------------------------ 
#define FW_VERSION 2

//MODES
#define USE_NRF_TEMP_SENSOR                 1

//DEFAULT SETTINGS
#define DEFAULT_SLEEP_FRAME                 60000
#define DEFAULT_LOCATION_MODE               2
#define DEFAULT_LOCATION_ACCURACY           2  // 0 = no location, 1 = cl only, 2 = gps then cl
#define DEFAULT_LOCATION_TX_INTERVAL_MINS   1440
#define DEFAULT_LOCATION_TX_FAILSAFE_HRS    168
#define DEFAULT_LOCATION_TIMEOUT            180
#define DEFAULT_MOTION_G                    11
#define DEFAULT_MOTION_START_SECONDS        120
#define DEFAULT_MOTION_STOP_SECONDS         120
#define DEFAULT_IMPACT_G                    127
#define DEFAULT_CONNECTION_ATTEMPTS         1
#define DEFAULT_CONNECTION_TIMEOUT          180
#define DEFAULT_BEACON_INTERVAL_SECONDS     10

//------------------------------------------------------------------------------
//FUNCTION PROTOTYPES
//------------------------------------------------------------------------------ 
void mainStateEngine(void);
void selftest(void);
void buttonPress(void);
void buttonRelease(void);
void dumpSettings(void);
void saveEventTimes(void);

//------------------------------------------------------------------------------
// GLOBALS
//------------------------------------------------------------------------------ 
char*            GLOBAL_defaultApi                   = "b:gps2";
bool             GLOBAL_accel_healthy                = false;
bool             GLOBAL_motionStopFlagTriggered      = false;
bool             GLOBAL_debugLED                     = true;
bool             GLOBAL_needToConfigureLis3dh        = false;
bool             GLOBAL_registeredOnNetwork          = false;
bool             GLOBAL_modemOn                      = false;
bool             GLOBAL_LEDSequenceinProgress        = false;
time_t           GLOBAL_wakeTime                     = 0;
char             GLOBAL_exceptionString[15];
char             GLOBAL_debug_buffer[200];


int              RET_setting_firmware;
uint32_t         RET_setting_minimumupdate_hrs;
uint8_t          RET_setting_location_mode;
uint8_t          RET_setting_location_accuracy;
uint32_t         RET_setting_location_tx_interval_mins;
uint32_t         RET_setting_location_tx_failsafe_hrs;
uint16_t         RET_setting_location_timeout;
uint32_t         RET_setting_activity_tx_interval_hrs;
uint32_t         RET_setting_environmental_tx_interval_mins;
uint16_t         RET_setting_motion_g;
time_t           RET_setting_motion_start_seconds;
time_t           RET_setting_motion_stop_seconds;
uint16_t         RET_setting_impact_g;
uint8_t          RET_setting_impact_alert;
uint16_t         RET_setting_connection_timeout;
uint16_t         RET_setting_beacon_interval_seconds;
uint16_t         RET_setting_beacon_scan;
//STATE
uint8_t          RET_coldBoot = 1;
time_t           RET_RTCunixtime;
bool             RET_haveSettings;
uint8_t          RET_state;
uint8_t          RET_state_prev;
uint8_t          RET_buttonPressCount;
time_t           RET_buttonPressTime;
time_t           RET_buttonHoldTime;
time_t           RET_SetupRunAt;
time_t           RET_SettingsGotAt;
//MOTION STATE
bool             RET_motionTriggered;
bool             RET_motionTriggeredInTXInterval;
time_t           RET_motionStartTime;
time_t           RET_motionStopTime;
bool             RET_motionPendingOnState;
bool             RET_motionPendingOffState;
bool             RET_motionState;
float            RET_motionTotalActivityHours;
time_t           RET_motionFrameStart;
char             RET_activityData[140];
//IMPACT
bool             RET_impactTriggered;
//EVENTS LOGGING
time_t           RET_eventTime_location_log;
time_t           RET_eventTime_environmental_log;
//EVENTS TX
time_t           RET_eventTime_location_tx;
time_t           RET_eventTime_location_failsafe_tx;
time_t           RET_eventTime_environmental_tx;
time_t           RET_eventTime_activity_tx;
time_t           RET_eventTime_wakeFromDormant;

//------------------------------------------------------------------------------
//GPIO
//------------------------------------------------------------------------------ 
InterruptIn button(PN_IN_BUTTON);

//------------------------------------------------------------------------------
//PERIPHERALS
//------------------------------------------------------------------------------ 
//BLE myble;
WatchdogTimer watchdog(300.0); //Do not set to less than 4500ms or can cause issues with softdevice
void watchdogKick() {watchdog.kick();}
SI7060 si7060(PN_I2C_SDA, PN_I2C_SCL);
LIS3DH lis3dh(PN_SPI_MOSI, PN_SPI_MISO, PN_SPI_CS0, PN_SPI_CLK);
Modem modem(PN_GSM_PWR_KEY, PN_VREG_EN, PN_GSM_WAKE_DISABLE);
LowPowerTicker RTCticker; //no impact on power consumption

//------------------------------------------------------------------------------
//THREAD SEMAPHORES
//------------------------------------------------------------------------------ 
Semaphore mainthread;

//------------------------------------------------------------------------------
// LOW LEVEL FUNCS
//------------------------------------------------------------------------------
void nrf_configureGPIOForSleep(){
    nrf_gpio_cfg_input(PN_SPI_MOSI, NRF_GPIO_PIN_NOPULL);
    nrf_gpio_cfg_input(PN_SPI_MISO, NRF_GPIO_PIN_NOPULL);
}
void setState(uint8_t state) {
    RET_state_prev = RET_state;
    RET_state = state;
}

void dumpSettings() {    
    if(DEBUG_ON){
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_RTCunixtime:%u", RET_RTCunixtime);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_firmware:%d", RET_setting_firmware);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_minimumupdate_hrs:%d", RET_setting_minimumupdate_hrs);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_state:%d", RET_state);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_location_mode:%d", RET_setting_location_mode);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_location_accuracy:%d", RET_setting_location_accuracy);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_location_tx_interval_mins:%d", RET_setting_location_tx_interval_mins);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_location_tx_failsafe_hrs:%d", RET_setting_location_tx_failsafe_hrs);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_location_timeout:%d", RET_setting_location_timeout);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_activity_tx_interval_hrs:%d", RET_setting_activity_tx_interval_hrs);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_environmental_tx_interval_mins:%d", RET_setting_environmental_tx_interval_mins);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_motion_g:%d", RET_setting_motion_g);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_motion_start_seconds:%d", RET_setting_motion_start_seconds);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_motion_stop_seconds:%d", RET_setting_motion_stop_seconds);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_impact_g:%d", RET_setting_impact_g);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_impact_alert:%d", RET_setting_impact_alert);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_connection_timeout:%d", RET_setting_connection_timeout);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_beacon_interval_seconds:%d", RET_setting_beacon_interval_seconds);debug_exe();
        debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "RET_setting_beacon_scan:%d", RET_setting_beacon_scan);debug_exe();
    }
    
    DEBUG("RET_RTCunixtime:%u",RET_RTCunixtime);
    DEBUG("RET_setting_firmware:%d",RET_setting_firmware);
    DEBUG("RET_setting_minimumupdate_hrs:%d",RET_setting_minimumupdate_hrs);
    DEBUG("RET_state:%d",RET_state);
    DEBUG("RET_setting_location_mode:%d",RET_setting_location_mode);
    DEBUG("RET_setting_location_accuracy:%d",RET_setting_location_accuracy);
    DEBUG("RET_setting_location_tx_interval_mins:%d",RET_setting_location_tx_interval_mins);
    DEBUG("RET_setting_location_tx_failsafe_hrs:%d",RET_setting_location_tx_failsafe_hrs);
    DEBUG("RET_setting_location_timeout:%d",RET_setting_location_timeout);
    DEBUG("RET_setting_activity_tx_interval_hrs:%d",RET_setting_activity_tx_interval_hrs);
    DEBUG("RET_setting_environmental_tx_interval_mins:%d",RET_setting_environmental_tx_interval_mins);
    DEBUG("RET_setting_motion_g:%d",RET_setting_motion_g);
    DEBUG("RET_setting_motion_start_seconds:%d",RET_setting_motion_start_seconds);
    DEBUG("RET_setting_motion_stop_seconds:%d",RET_setting_motion_stop_seconds);
    DEBUG("RET_setting_impact_g:%d",RET_setting_impact_g);
    DEBUG("RET_setting_impact_alert:%d",RET_setting_impact_alert);
    DEBUG("RET_setting_connection_timeout:%d",RET_setting_connection_timeout);
    DEBUG("RET_setting_beacon_interval_seconds:%d",RET_setting_beacon_interval_seconds);
    DEBUG("RET_setting_beacon_scan:%d",RET_setting_beacon_scan);
}
float getBatteryV() {
    NRF52_SAADC batteryIn;
    batteryIn.addChannel(9); // vdd for battery
    batteryIn.calibrate();
    float voltage = 0.0;
    for (uint8_t i = 1; i <= 2; i++) { // need to get it 2 times to get accurate data, first one is always low for some reason
        batteryIn.updateData();
        voltage = (batteryIn.getData()[0])*(1.0/1024.0)*3.65;
    }
    return voltage;
}
float nrfTemperature() {
    //INTERNAL NRF52 TEMP SENSOR
    uint32_t safetycounter = 0;
    float temperature = 0.0;
    NRF_TEMP->TASKS_START=1;
    while (NRF_TEMP->EVENTS_DATARDY==0 && safetycounter < 10000) {
        safetycounter ++;
    };
    NRF_TEMP->EVENTS_DATARDY=0;
    temperature = nrf_temp_read()/4.0;
    NRF_TEMP->TASKS_STOP=1;
    return temperature;
}
float getTemperature() {
    float temperature;

    if (USE_NRF_TEMP_SENSOR) {
        //INTERNAL NRF52 TEMP SENSOR
        temperature = nrfTemperature();
    } else {
        temperature = si7060.getTemperature(); //currently disabled because its causing a high current 450ua sleep, most likely due to sensor not sleeping correctly, or i2c sleep issue
    }
    
    return temperature;  
}
void addToExceptionString(char* value) {
    snprintf(GLOBAL_exceptionString+strlen(GLOBAL_exceptionString),sizeof(GLOBAL_exceptionString),"%s.",value);
}
//------------------------------------------------------------------------------
// USER BUTTON HANDLING
//------------------------------------------------------------------------------ 
void buttonPress() {
    RET_buttonPressTime = RET_RTCunixtime;
}
void buttonRelease() {
    RET_buttonHoldTime = (RET_RTCunixtime - RET_buttonPressTime);
    RET_buttonPressCount ++;
}
//------------------------------------------------------------------------------
// RTC TICKER
//------------------------------------------------------------------------------ 
void RTCtick() {
    //YOU MUST NOT CALL ANY OTHER FUNCTIONS OR DEBUG FROM INSIDE HERE!!! OR IT LOCKS UP THE DEVICE, just change vars
    RET_RTCunixtime += 1;
    
    //button logic - check for hold
    if (RET_buttonHoldTime > 4) {
        RET_buttonHoldTime = 0;
        RET_buttonPressCount = 0;
        RET_state_prev = RET_state;
        RET_state = STATE_BUTTONHOLD;
        mainthread.release();
    } else {
        if((RET_RTCunixtime - RET_buttonPressTime) > 1) {
            switch (RET_buttonPressCount) {   
                case 1 :
                    if (RET_state == STATE_NORMAL) {
                        RET_state = STATE_BUTTONPRESS1;
                        mainthread.release();
                    }
                    break;
                case 3 :
                    if (RET_state == STATE_NORMAL) {
                        RET_state = STATE_BUTTONPRESS2;
                        mainthread.release();
                    }
                    break;
                case 5 :
                    if (RET_state == STATE_NORMAL) {
                        RET_state = STATE_BUTTONPRESS3;
                        mainthread.release();
                    }
                    break;
                default :
                    //do nothing
                    break;
            }
            RET_buttonPressCount = 0;
        }
    }
    //SETUP STATE VISUALISE
    if (!GLOBAL_LEDSequenceinProgress && RET_state == STATE_SETUP) {
        led1 = !led1; 
    }
}
void resetGlobals() {
    GLOBAL_accel_healthy = false;
    GLOBAL_motionStopFlagTriggered = false;
    memset(GLOBAL_exceptionString,0x00,sizeof(GLOBAL_exceptionString));
    if (DEBUG_ON) {memset(GLOBAL_debug_buffer,0x00,sizeof(GLOBAL_debug_buffer));}
}
void setDefaults() {
    //IDENTITY 
    //RET_imei = 0;
    //STATE
    RET_haveSettings = 0;
    RET_state = STATE_SETUP;
    RET_state_prev = RET_state;
    RET_RTCunixtime = 0;
    RET_SetupRunAt = 0;
    RET_SettingsGotAt = 0;
    //SETTINGS
    RET_setting_firmware = 0;
    RET_setting_minimumupdate_hrs = 0;
    RET_setting_location_mode = DEFAULT_LOCATION_MODE;
    RET_setting_location_accuracy = DEFAULT_LOCATION_ACCURACY;
    RET_setting_location_tx_interval_mins = DEFAULT_LOCATION_TX_INTERVAL_MINS;
    RET_setting_location_tx_failsafe_hrs = DEFAULT_LOCATION_TX_FAILSAFE_HRS;
    RET_setting_location_timeout = DEFAULT_LOCATION_TIMEOUT;
    RET_setting_activity_tx_interval_hrs = 0;
    RET_setting_environmental_tx_interval_mins = 0;
    RET_setting_motion_g = DEFAULT_MOTION_G;
    RET_setting_motion_start_seconds = DEFAULT_MOTION_START_SECONDS;
    RET_setting_motion_stop_seconds = DEFAULT_MOTION_STOP_SECONDS;
    RET_setting_impact_g = 0;
    RET_setting_impact_alert = 0;
    RET_setting_connection_timeout = DEFAULT_CONNECTION_TIMEOUT;
    RET_setting_beacon_interval_seconds = DEFAULT_BEACON_INTERVAL_SECONDS;
    RET_setting_beacon_scan = 0;
    RET_buttonPressCount = 0;
    RET_buttonPressTime = 0;
    RET_buttonHoldTime = 0;
    //MOTION STATE
    RET_motionTriggered = 0;
    RET_motionTriggeredInTXInterval = 0;
    RET_motionStartTime = 0;
    RET_motionStopTime = 0;
    RET_motionPendingOnState = 0;
    RET_motionPendingOffState = 0;
    RET_motionState = 0;
    RET_motionTotalActivityHours = 0.0;
    RET_motionFrameStart = 0;
    memset(RET_activityData,0x00,sizeof(RET_activityData));
    //IMPACT
    RET_impactTriggered = 0;
    //EVENT HANDLING
    RET_eventTime_location_log = 0;
    RET_eventTime_location_tx = 0;
    RET_eventTime_location_failsafe_tx = 0;
    RET_eventTime_environmental_log = 0;
    RET_eventTime_environmental_tx = 0;
    RET_eventTime_activity_tx = 0;
    RET_eventTime_wakeFromDormant = 0;
    
    //PERIPHERAL RESET
    lis3dh_configureForSleep(DEFAULT_MOTION_G,DEFAULT_IMPACT_G);
}

bool selfTest() {
    int test_count = 0;
    int test_pass = 0;
    
    //Accelerometer
    test_count ++;
    uint8_t lis3dh_id; 
    lis3dh.LIS3DH_GetWHO_AM_I(&lis3dh_id);
    if (lis3dh_id == 51) {
        test_pass ++;
    } else {
        addToExceptionString("A.");   
    }
    
    //Temperature
    test_count ++;
    float temperature;
    if (USE_NRF_TEMP_SENSOR) {
        //INTERNAL NRF52 TEMP SENSOR
        temperature = nrfTemperature();
    } else {
        temperature = si7060.getTemperature();
    }
    if (temperature > -40 && temperature < 60) {
        test_pass ++;
    } else {
        addToExceptionString("T.");
    }
    
    //Result
    if (test_count == test_pass) {
        addToExceptionString("OK."); 
        return true;
    } else {
        addToExceptionString("FAIL."); 
        return false;   
    }
}

//------------------------------------------------------------------------------
// MOTION FUNCS
//------------------------------------------------------------------------------ 
void checkMotion() {
    if (lis3dh_int2) {
        //if (GLOBAL_debugLED) LED1blink(1,50);
        RET_motionTriggered = true;
        GLOBAL_needToConfigureLis3dh = true; //interrupt has fire so need to clear it
        if (!RET_motionPendingOnState) {
            RET_motionPendingOnState = true;
            RET_motionPendingOffState = false;
            // Log start motion time
            RET_motionStartTime = RET_RTCunixtime;
        }
    } else {
        RET_motionTriggered = false;
        RET_motionPendingOnState = false;
        if (!RET_motionPendingOffState) {
            RET_motionPendingOffState = true;
            //log stop motion time
            RET_motionStopTime = RET_RTCunixtime;
        }
    }
    //calculate motion state
    if (RET_motionPendingOnState) {
        //check if above threshold
        time_t inMotionForSeconds = (RET_RTCunixtime - RET_motionStartTime) + 2; //Plus 2 to account for rounding and non exact clocks
        if (inMotionForSeconds >= RET_setting_motion_start_seconds && RET_motionState == false) {
            RET_motionState = true;
            RET_motionTriggeredInTXInterval = true;
            if (GLOBAL_debugLED) LED1blink(1,50);
            if (RET_setting_location_tx_failsafe_hrs > 0) {
                time_t epochOffsetMins = ((RET_RTCunixtime - RET_motionFrameStart) / 60);
                sprintf(RET_activityData+strlen(RET_activityData),"1.%u!",epochOffsetMins);
            }
        }
    }
    if (RET_motionPendingOffState) {
        time_t noMotionForSeconds = (RET_RTCunixtime - RET_motionStopTime) + 2; //Plus 2 to account for rounding and non exact clocks
        if (noMotionForSeconds >= RET_setting_motion_stop_seconds && RET_motionState == true) {
            RET_motionPendingOffState = false;
            RET_motionState = false;
            GLOBAL_motionStopFlagTriggered = true;
            RET_motionTotalActivityHours += (float(RET_motionStopTime - RET_motionStartTime) / 3600.0); 
            if (GLOBAL_debugLED) LED1blink(2,50);
            if (RET_setting_location_tx_failsafe_hrs > 0) {
                time_t epochOffsetMins = ((RET_RTCunixtime - RET_motionFrameStart) / 60);
                sprintf(RET_activityData+strlen(RET_activityData),"0.%u!",epochOffsetMins);
            }
        }
    }
}

//------------------------------------------------------------------------------
// UPDATE OPERATING SETTINGS
//------------------------------------------------------------------------------ 
bool saveSettings(char* settingsBuffer) {
    int matchCount = 0;
    int critical_fail_count = 0;
    int TEMP_a = -1; time_t TEMP_b = 0; int TEMP_c = -1; int TEMP_d = -1; int TEMP_e = -1; int TEMP_f = -1; int TEMP_g = -1; int TEMP_h = -1; int TEMP_i = -1; int TEMP_j = -1; 
    int TEMP_k = -1; int TEMP_l = -1; int TEMP_m = -1; int TEMP_n = -1; int TEMP_o = -1; int TEMP_p = -1; int TEMP_q = -1; int TEMP_r = -1; int TEMP_s = -1;
    if ( (matchCount = sscanf(settingsBuffer,"a:%d,b:%u,c:%d,d:%d,e:%d,f:%d,g:%d,h:%d,i:%d,j:%d,k:%d,l:%d,m:%d,n:%d,o:%d,p:%d,q:%d,r:%d,s:%d",
    &TEMP_a,&TEMP_b,&TEMP_c,&TEMP_d,&TEMP_e,&TEMP_f,&TEMP_g,&TEMP_h,&TEMP_i,&TEMP_j,&TEMP_k,&TEMP_l,&TEMP_m,&TEMP_n,&TEMP_o,&TEMP_p,&TEMP_q,&TEMP_r,&TEMP_s) ) > 0 ) {
        DEBUG("FROMSERVER: a:%d,b:%u,c:%d,d:%d,e:%d,f:%d,g:%d,h:%d,i:%d,j:%d,k:%d,l:%d,m:%d,n:%d,o:%d,p:%d,q:%d,r:%d,s:%d\n",
        TEMP_a,TEMP_b,TEMP_c,TEMP_d,TEMP_e,TEMP_f,TEMP_g,TEMP_h,TEMP_i,TEMP_j,TEMP_k,TEMP_l,TEMP_m,TEMP_n,TEMP_o,TEMP_p,TEMP_q,TEMP_r,TEMP_s);
        
        if(DEBUG_ON){debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "FROMSERVER: a:%d,b:%u,c:%d,d:%d,e:%d,f:%d,g:%d,h:%d,i:%d,j:%d,k:%d,l:%d,m:%d,n:%d,o:%d,p:%d,q:%d,r:%d,s:%d\n",
        TEMP_a,TEMP_b,TEMP_c,TEMP_d,TEMP_e,TEMP_f,TEMP_g,TEMP_h,TEMP_i,TEMP_j,TEMP_k,TEMP_l,TEMP_m,TEMP_n,TEMP_o,TEMP_p,TEMP_q,TEMP_r,TEMP_s);debug_exe();}
        
        //FAILUREMODE need to be checking these against checksums
        char changed;
        
        if(TEMP_a != -1) { RET_setting_minimumupdate_hrs = TEMP_a;                 changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_minimumupdate_hrs:%u..%c\n",RET_setting_minimumupdate_hrs,changed);
        if(TEMP_b != 0)  { RET_RTCunixtime = TEMP_b; changed = 'Y';                               } else { changed = 'N'; critical_fail_count++; }; DEBUG("RET_RTCunixtime:%u..%c\n",RET_RTCunixtime,changed);
        if(TEMP_c != -1) { RET_setting_firmware = TEMP_c;                          changed = 'Y'; } else { changed = 'N'; RET_setting_firmware = -1;}; DEBUG("RET_setting_firmware:%d..%c\n",RET_setting_firmware,changed);
        if(TEMP_d != -1) { setState(TEMP_d);                                       changed = 'Y'; } else { changed = 'N'; critical_fail_count++; }; DEBUG("RET_state:%d..%c\n",RET_state,changed);
        if(TEMP_e != -1) { RET_setting_location_mode = TEMP_e;                     changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_location_mode:%d..%c\n",RET_setting_location_mode,changed);
            if(RET_setting_location_mode > 3) {RET_setting_location_mode = DEFAULT_LOCATION_MODE;}
        if(TEMP_f != -1) { RET_setting_location_accuracy = TEMP_f;                 changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_location_accuracy:%d..%c\n",RET_setting_location_accuracy,changed);
            if(RET_setting_location_accuracy > 3) {RET_setting_location_accuracy = DEFAULT_LOCATION_ACCURACY;}
        if(TEMP_g != -1) { RET_setting_location_tx_interval_mins = TEMP_g;         changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_location_tx_interval_mins:%d..%c\n",RET_setting_location_tx_interval_mins,changed);
        if(TEMP_h != -1) { RET_setting_location_tx_failsafe_hrs = TEMP_h;          changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_location_tx_failsafe_hrs:%d..%c\n",RET_setting_location_tx_failsafe_hrs,changed);
            if(RET_setting_location_tx_failsafe_hrs > 504) {RET_setting_location_tx_failsafe_hrs = DEFAULT_LOCATION_TX_FAILSAFE_HRS;}
        if(TEMP_i != -1) { RET_setting_location_timeout = TEMP_i;                  changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_location_timeout:%d..%c\n",RET_setting_location_timeout,changed);
            if(RET_setting_location_timeout < 60 || RET_setting_location_timeout > 300) {RET_setting_location_timeout = DEFAULT_LOCATION_TIMEOUT;}
        if(TEMP_j != -1) { RET_setting_activity_tx_interval_hrs = TEMP_j;          changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_activity_tx_interval_hrs:%d..%c\n",RET_setting_activity_tx_interval_hrs,changed);
        if(TEMP_k != -1) { RET_setting_environmental_tx_interval_mins = TEMP_k;    changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_environmental_tx_interval_mins:%d..%c\n",RET_setting_environmental_tx_interval_mins,changed);
        if(TEMP_l != -1) { RET_setting_motion_g = TEMP_l;                          changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_motion_g:%d..%c\n",RET_setting_motion_g,changed);
            if(RET_setting_motion_g < 6 || RET_setting_motion_g > 127) {RET_setting_motion_g = DEFAULT_MOTION_G;}
        if(TEMP_m != -1) { RET_setting_motion_start_seconds = TEMP_m;              changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_motion_start_seconds:%d..%c\n",RET_setting_motion_start_seconds,changed);
        if(TEMP_n != -1) { RET_setting_motion_stop_seconds = TEMP_n;               changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_motion_stop_seconds:%d..%c\n",RET_setting_motion_stop_seconds,changed);
        if(TEMP_o != -1) { RET_setting_impact_g = TEMP_o;                          changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_impact_g:%d..%c\n",RET_setting_impact_g,changed);
        if(TEMP_p != -1) { RET_setting_impact_alert = TEMP_p;                      changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_impact_alert:%d..%c\n",RET_setting_impact_alert,changed);
        if(TEMP_q != -1) { RET_setting_connection_timeout = TEMP_q;                changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_connection_timeout:%d..%c\n",RET_setting_connection_timeout,changed);
            if(RET_setting_connection_timeout < 60 || RET_setting_connection_timeout > 240) { RET_setting_connection_timeout = DEFAULT_CONNECTION_TIMEOUT; }
        if(TEMP_r != -1) { RET_setting_beacon_interval_seconds = TEMP_r;           changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_beacon_interval_seconds:%d..%c\n",RET_setting_beacon_interval_seconds,changed);
        if(TEMP_s != -1) { RET_setting_beacon_scan = TEMP_s;                       changed = 'Y'; } else { changed = 'N'; }; DEBUG("RET_setting_beacon_scan:%d..%c\n",RET_setting_beacon_scan,changed);
        
        if (critical_fail_count == 0) { 
            if(DEBUG_ON){debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "GOT SETTINGS OK");debug_exe();}
            DEBUG("GOT SETTINGS OK",false);
            dumpSettings(); 
            saveEventTimes();
            RET_haveSettings = true;
            GLOBAL_needToConfigureLis3dh = true;
            RET_SettingsGotAt = RET_RTCunixtime;
            return true;
        } else {
            if(DEBUG_ON){debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "CRITICAL FAILS:%d",critical_fail_count);debug_exe();}
            DEBUG("CRITICAL FAILS:%d",critical_fail_count);
            dumpSettings();
            RET_haveSettings = false; 
            return false;
        }
    } else {
        RET_haveSettings = false;
        return false;
    }
}

void saveEventTimes() {
    //SET EVENT TIMES
    if(RET_setting_location_tx_interval_mins > 0) { 
        RET_eventTime_location_tx = (RET_RTCunixtime + (RET_setting_location_tx_interval_mins * 60));
        if(DEBUG_ON){debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "EVENTSET - LOCATION TX at %u, MODE %d\n",RET_eventTime_location_tx, RET_setting_location_mode);debug_exe();}
        DEBUG("EVENTSET - LOCATION TX at %u, MODE %d\n",RET_eventTime_location_tx, RET_setting_location_mode);
    }
    if(RET_setting_location_tx_failsafe_hrs > 0) { 
        RET_eventTime_location_failsafe_tx = (RET_RTCunixtime + (RET_setting_location_tx_failsafe_hrs * 3600));
        if(DEBUG_ON){debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "EVENTSET - LOCATION FAILSAFE TX at %u\n",RET_eventTime_location_failsafe_tx);debug_exe();}
        DEBUG("EVENTSET - LOCATION FAILSAFE TX at %u\n",RET_eventTime_location_failsafe_tx);
    }
    if(RET_setting_activity_tx_interval_hrs > 0) { 
        RET_motionFrameStart = RET_RTCunixtime; //SET START FRAME INITAL
        RET_eventTime_activity_tx = (RET_RTCunixtime + (RET_setting_activity_tx_interval_hrs * 3600));
        if(DEBUG_ON){debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "EVENTSET - ACTIVITY TX at %u\n",RET_eventTime_activity_tx);debug_exe();}
        DEBUG("EVENTSET - ACTIVITY TX at %u\n",RET_eventTime_activity_tx);
    }
    if(RET_eventTime_environmental_tx > 0) { 
        RET_eventTime_environmental_tx = (RET_RTCunixtime + (RET_setting_environmental_tx_interval_mins * 60));
        if(DEBUG_ON){debug_prep();snprintf(GLOBAL_debug_buffer, sizeof(GLOBAL_debug_buffer), "EVENTSET - ENVIRONMENTAL TX at %u\n",RET_eventTime_environmental_tx);debug_exe();}
        DEBUG("EVENTSET - ENVIRONMENTAL TX at %u\n",RET_eventTime_environmental_tx);
    }
}

//------------------------------------------------------------------------------
// SETUP
//------------------------------------------------------------------------------ 
bool setup() {
    bool pass = true;
    float temperature = getTemperature();
    float voltage = getBatteryV();
    bool selftestresult = selfTest();
    if (selftestresult == false) { LED1errorCode(4,20); } //ERROR 4
    if (modem.on()) {
        //RET_imei = modem.getIMEI();
        //DEBUG("imei: %lld \n",RET_imei);
        //char* modemModel = modem.getModemModel();
        char locString[70];
        memcpy(locString, modem.getLocation(1, RET_setting_location_timeout), 70);
        if (modem.registerOnNetwork(DEFAULT_CONNECTION_ATTEMPTS,(RET_setting_connection_timeout*1000))) {
            int timetaken = (RET_RTCunixtime - GLOBAL_wakeTime) + 10; //add 10 for ussd response time.
            char bytestosend[160];
            snprintf(bytestosend,sizeof(bytestosend),"(%s,a:setup,f:%d,v:%.2f,t:%.1f,e:%d,z:SETUP-%s,c:1,s:1%s)\0",GLOBAL_defaultApi,FW_VERSION,voltage,temperature,timetaken,GLOBAL_exceptionString,locString);
            char result[200];
            snprintf(result,sizeof(result),"%s",modem.USSDmessage(bytestosend, true, 2, GLOBAL_defaultApi));
            if (strcmp(result, "err") != 0) {
                //DEBUG("\nfromserver: %s \n",result);
                if (!saveSettings(result)) {
                    //something went critically wrong getting settings 
                    pass = false;
                    modem.off(false);
                    if(GLOBAL_debugLED) LED1errorCode(5,10); //ERROR 5
                }                           
            } else {
                //Response error
            }
        } else {
            //FAILUREMODE modem failed to register on network
            DEBUG("NET REGISTER FAIL",false);
            modem.off(false);
            if(GLOBAL_debugLED) LED1errorCode(3,10); //ERROR 3
            pass = false;
        }
    } else {
        //FAILUREMODE Modem failed to turn on  
        DEBUG("MODEM ON FAIL",false);
        modem.off(false);
        if(GLOBAL_debugLED) LED1errorCode(2,10); //ERROR 2
        pass = false;
    }
    modem.off(false);
    
    //LOG RUN TIME - THIS MUST GO AT END AFTER WE HAVE GOT SERVER TIMESTAMP
    RET_SetupRunAt = RET_RTCunixtime;
    
    //RESULT
    return pass;
}

//------------------------------------------------------------------------------
// EVENTS
//------------------------------------------------------------------------------ 
void event_connectiontest_tx(int location_accuracy) {
    DEBUG("TEST EVENT\n",false);
    float temperature = getTemperature();
    float voltage = getBatteryV();  
    int selftestresult = selfTest();
    if (modem.on()) {
        char locString[70];
        memcpy(locString, modem.getLocation(location_accuracy, RET_setting_location_timeout), 70);
        if (modem.registerOnNetwork(DEFAULT_CONNECTION_ATTEMPTS,(RET_setting_connection_timeout*1000))) {
            int timetaken = (RET_RTCunixtime - GLOBAL_wakeTime) + 10; //add 10 for ussd response time.;
            char bytestosend[160];
            snprintf(bytestosend,sizeof(bytestosend),"(%s,a:loc,f:%d,t:%.1f,v:%.2f,z:TEST-%s,e:%d,c:1,s:1%s)\0",GLOBAL_defaultApi,FW_VERSION,temperature,voltage,GLOBAL_exceptionString,timetaken,locString);
            char result[180];
            bool getSettings = true;
            snprintf(result,sizeof(result),"%s",modem.USSDmessage(bytestosend, getSettings, 2, GLOBAL_defaultApi));
            if (result != "err") {
                //DEBUG("\nfromserver: %s \n",result);
                if (getSettings) {
                    saveSettings(result);
                    if(GLOBAL_debugLED) LED1blink(5,250);
                }
            }
        } else {
            modem.off(false);
            if(GLOBAL_debugLED) LED1errorCode(3,20); //ERROR 3   
        }
    } else {
        modem.off(false);
        if(GLOBAL_debugLED) LED1errorCode(2,20); //ERROR 2
    }
    modem.off(false);
    //RESETS
    RET_motionTriggeredInTXInterval = 0;
    saveEventTimes();
}

void event_location_tx() {
    DEBUG("LOCATION TX\n",false);
    float temperature = getTemperature();
    float voltage = getBatteryV();
    int selfTestResult = selfTest();
    if (modem.on()) {
        char locString[70];
        memcpy(locString, modem.getLocation(RET_setting_location_accuracy, RET_setting_location_timeout), 70);
        //DEBUG("locString:%s-\n",locString);
        //SEND DATA
        if (modem.registerOnNetwork(DEFAULT_CONNECTION_ATTEMPTS,(RET_setting_connection_timeout*1000))) {
            int timetaken = (RET_RTCunixtime - GLOBAL_wakeTime) + 10; //add 10 for ussd response time 
            
            //Check if we should wait for settings back
            bool getSettings = true;
            if (  ((RET_RTCunixtime - RET_SettingsGotAt)/3600) < RET_setting_minimumupdate_hrs  ) { getSettings = false; timetaken -= 10;} //remove the extra 10 seconds from times
            
            char bytesToSend[160];
            snprintf(bytesToSend,sizeof(bytesToSend),"(%s,a:loc,f:%d,t:%.1f,v:%.2f,z:LOC-%s,e:%d,c:1,s:%d%s)\0",GLOBAL_defaultApi,FW_VERSION,temperature,voltage,GLOBAL_exceptionString,timetaken,getSettings,locString);
            char result[180];
            snprintf(result,sizeof(result),"%s",modem.USSDmessage(bytesToSend, getSettings, 2, GLOBAL_defaultApi));
            if (result != "err") {
                //DEBUG("\nfromserver: %s \n",result);
                if (getSettings) {
                    saveSettings(result);
                }
            }
        } else {
            modem.off(false);
            if(GLOBAL_debugLED) LED1errorCode(3,20); //ERROR 3   
        }
    } else {
        modem.off(false);
        if(GLOBAL_debugLED) LED1errorCode(2,20); //ERROR 2
    }
    modem.off(false);
    //RESETS
    RET_motionTriggeredInTXInterval = 0;
    saveEventTimes();
}

void event_activity_tx() {
    DEBUG("ACTIVITY TX\n",false);
    float temperature = getTemperature();
    if (modem.on()) {
        //SEND DATA
        if (modem.registerOnNetwork(DEFAULT_CONNECTION_ATTEMPTS,(RET_setting_connection_timeout*1000))) {
            char bytesToSend[160];
            snprintf(bytesToSend,sizeof(bytesToSend),"(%s,a:act,e:%s,t:%u,r:%.2f,c:1)\0",GLOBAL_defaultApi,RET_activityData,RET_motionFrameStart,RET_motionTotalActivityHours);
            char result[180];
            bool getResponse = false;
            snprintf(result,sizeof(result),"%s",modem.USSDmessage(bytesToSend, getResponse, 2, GLOBAL_defaultApi));
            if (result != "err") {
                //RESET ACTIVITY FRAME
                memset(RET_activityData,0,sizeof(RET_activityData));
                if (RET_haveSettings) { RET_motionFrameStart = RET_RTCunixtime; }
            }
        } else {
            modem.off(false);
            if(GLOBAL_debugLED) LED1errorCode(3,20); //ERROR 3
        }
    } else {
        modem.off(false);
        if(GLOBAL_debugLED) LED1errorCode(2,20); //ERROR 3
    }
    modem.off(false);
    //RESETS
    RET_motionTriggeredInTXInterval = 0;
    saveEventTimes();
}

//------------------------------------------------------------------------------
// STATE ENGINE
//------------------------------------------------------------------------------ 
void mainStateEngine() {
    
    switch(RET_state) {
        case STATE_SETUP :
        { //need the curlies to avoid "transfer of control bypass init error warning"
            DEBUG("STATE:SETUP\n",false);
            if (setup()) {
                // All good
            } else {
                RET_eventTime_wakeFromDormant = (RET_RTCunixtime + (24*3600)); //24hrs
                setState(STATE_DORMANT);
                DEBUG("SETUP FAILED:DORMANT until %u\n",RET_eventTime_wakeFromDormant);
            }
            break;
        }
        case STATE_NORMAL :
        {
            DEBUG("STATE:NORMAL\n",false);
            
            //check and log motion
            checkMotion();
            
            //LOCATION EVENT
            bool run_location_tx = false;
            switch (RET_setting_location_mode) {
                case 1: //INTERVAL POST
                    if(RET_RTCunixtime >= RET_eventTime_location_tx && RET_eventTime_location_tx > 0) { run_location_tx = true; }
                    break;
                case 2: //INTERVAL POST WITH MOTION CHECK
                    if(RET_motionTriggeredInTXInterval && RET_RTCunixtime >= RET_eventTime_location_tx && RET_eventTime_location_tx > 0) { run_location_tx = true; }
                    break;
                case 3: //POST ON STOP MOTION
                    if (GLOBAL_motionStopFlagTriggered) { run_location_tx = true; GLOBAL_motionStopFlagTriggered = false; }
                    break;
            }
            if(RET_RTCunixtime >= RET_eventTime_location_failsafe_tx && RET_eventTime_location_failsafe_tx > 0) { run_location_tx = true; }
            if (run_location_tx) { DEBUG("INTERVAL LOC TX...\n",false); event_location_tx(); }
            
            //if(RET_RTCunixtime >= RET_eventTime_location_tx && RET_eventTime_location_tx > 0) { run_location_tx = true; }
            //Location Failsafe timer catchall
            //if(RET_RTCunixtime >= RET_eventTime_location_failsafe_tx && RET_eventTime_location_failsafe_tx > 0) { run_location_tx = true; }
            //if (run_location_tx) { DEBUG("INTERVAL LOC TX...\n"); event_location_tx(); }
            
            //ACTIVITY EVENT
            bool run_activity_tx = false;
            if(RET_RTCunixtime >= RET_eventTime_activity_tx && RET_eventTime_activity_tx > 0 && strlen(RET_activityData) > 1) { 
                run_activity_tx = true;
            }
            if (strlen(RET_activityData) > 130) { run_activity_tx = true; }
            if (run_activity_tx) { DEBUG("ACTIVITY TX...\n",false); event_activity_tx();}
            
            break;
        }
        case STATE_DORMANT :
        {
            if (RET_RTCunixtime >= RET_eventTime_wakeFromDormant) {
                if (RET_haveSettings) {
                    setState(STATE_NORMAL); 
                } else {
                    setState(STATE_SETUP); 
                }
                DEBUG("WAKING UP FROM DORMANT\n",false);
            }
            DEBUG("STATE:DORMANT until %u\n",RET_eventTime_wakeFromDormant);
            break;
        }
        case STATE_BUTTONPRESS1 :
        {
            setState(STATE_NORMAL);
            DEBUG("STATE:BUTTONPRESS1\n",false);
            LED1blink(1,300);
            break;
        }
        case STATE_BUTTONPRESS2 :
        {
            setState(STATE_NORMAL);
            DEBUG("STATE:BUTTONPRESS2\n",false);
            LED1blink(2,300);
            LED1on(0);
            event_connectiontest_tx(1);
            LED1off();
            break;
        }
        case STATE_BUTTONPRESS3 :
        {
            setState(STATE_NORMAL);
            DEBUG("STATE:BUTTONPRESS3\n",false);
            LED1blink(3,300);
            LED1on(0);
            event_connectiontest_tx(2);
            LED1off();
            break;  
        }
        case STATE_BUTTONHOLD :
        {
            DEBUG("STATE:BUTTONHOLD\n",false);
            if (RET_state_prev == STATE_NORMAL) {
                setState(STATE_DORMANT);
                RET_eventTime_wakeFromDormant = (RET_RTCunixtime + (48*3600)); //48hrs
                DEBUG("TURNING OFF\n",false);
                DEBUG("STATE:DORMANT until %u\n",RET_eventTime_wakeFromDormant);
                LED1on(5000);
            } else {
                if (RET_haveSettings) {
                    setState(STATE_NORMAL);
                } else {
                    setState(STATE_SETUP);
                }
                DEBUG("TURNING ON\n",false);
                LED1blink(20,100);
            }
            break;
        }
        default :
        {
            setState(STATE_SETUP);
            DEBUG("DEFAULT STATE\n",false);
        }
    }
}

//------------------------------------------------------------------------------
// MAIN
//------------------------------------------------------------------------------ 
int main() {
    LED1on(500);
    
    //INIT
    LED1off();
    RTCticker.attach(&RTCtick, 1.0);
    button.fall(&buttonPress);
    button.rise(&buttonRelease);

    dumpSettings();
    
    //CHECK IF THIS IS RESET
    //0x00000004 == soft reset  //0x00000002 == watchdog  //0x00000001 == button/hardreset 
    if (NRF_POWER->RESETREAS != 0xffffffff) {
        switch(NRF_POWER->RESETREAS) {
            case 0x00000001  :
                DEBUG("0x%08x. Hard Reset ST:%d\n",NRF_POWER->RESETREAS, RET_state);
                RET_coldBoot = 1;
                dumpSettings();
            break;
            case 0x00000002  :
                DEBUG("Watchdog ST:%d\n",RET_state);
            break;
            case 0x00000004  :
                DEBUG("Soft ST:%d\n",RET_state);
            break;
        }
        NRF_POWER->RESETREAS = 0xffffffff;
    }
    
    //CHECK FOR FIRST BOOT
    if (RET_coldBoot == 1) { 
        setDefaults(); 
        //check battery
        float voltage = getBatteryV();
        if (voltage > 2.5) {
            //battery ok
            LED1errorCode(6,2);
        } else {
            //battery low
            LED1errorCode(10,2);
        }
        mainthread.wait(2000);
    }
    
    //MAIN LOOP
    while(true) {
        //WATCHDOG
        watchdogKick(); //only need this if we're in while loop
        
        //INIT
        resetGlobals(); // could move this into state engine switches to save actions on each loop
        GLOBAL_wakeTime = RET_RTCunixtime;
        
        //MAIN LOGIC
        DEBUG("STATE:%d, HAVESETTINGS:%d, MOTION: %d, RTC:%u, BOOTAT:%u, LOC:%u, LOCFS:%u, ACT:%u \n", RET_state, RET_haveSettings, RET_motionState, RET_RTCunixtime,RET_SetupRunAt,RET_eventTime_location_tx,RET_eventTime_location_failsafe_tx,RET_eventTime_activity_tx);
        DEBUG("ACTIVITY:%s\n",RET_activityData);
        mainStateEngine();
                
        //LOG FIRST RUN - BOOTLOADER COMMS
        if (RET_coldBoot) {
            read_app_data_from_flash(&app_data);
            bool write_app_data_to_flash_execute = false;
            if(get_flag(&app_data, app_execution_flag) == true) {
                clr_flag(&app_data, app_execution_flag);
                write_app_data_to_flash_execute = true;
            }
            if(app_data.current_firmware_version != FW_VERSION) {
                app_data.current_firmware_version = FW_VERSION;
                app_data.target_firmware_version = FW_VERSION;
                write_app_data_to_flash_execute = true;
            }
            if (write_app_data_to_flash_execute) {
                write_app_data_to_flash(&app_data);
            }
            RET_coldBoot = 0;
        }
        
        //PRE-SLEEP ACTIONS
        LED1off();
        if (GLOBAL_needToConfigureLis3dh) { lis3dh_configureForSleep(RET_setting_motion_g,RET_setting_impact_g); }
        modem.off(false);
        NRFuart_uninit();
        nrf_configureGPIOForSleep();
        watchdogKick();
        
        //SLEEP
        mainthread.wait(DEFAULT_SLEEP_FRAME);
    }
}