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bGeigieNano.ino
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/*
The bGeigie-nano
A device for car-borne radiation measurement (aka Radiation War-driving).
Copyright (c) 2013, Lionel Bergeret and Rob Oudendijk
Copyright (c) 2012, Lionel Bergeret
Copyright (c) 2011, Robin Scheibler aka FakuFaku, Christopher Wang aka Akiba
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of the <organization> nor the
names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
// 2017-11-24 V1.3.7 Setup for 5 seconds updates test.
// 2017-12-05 Setup mod for 5 seconds if cpm is bigger then alarm.
// 2018-06-02 fix for SDcard reading (ray)
// 2018-07-29 fixe for smaller display.
#include <limits.h>
#include <SoftwareSerial.h>
#include <math.h>
#include <stdlib.h>
#include <avr/wdt.h>
#include <EEPROM.h>
#include "TinyGPS.h"
#include "NanoSetup.h"
#include "NanoConfig.h"
#include "NanoDebug.h"
// OLED settings --------------------------------------------------------------
#if ENABLE_SSD1306
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#ifdef OLED_SPI_MODE
Adafruit_SSD1306 display(OLED_DATA, OLED_CLK, OLED_DC, OLED_RESET, OLED_CS);
#else
Adafruit_SSD1306 display(OLED_RESET);
#endif
#if (SSD1306_LCDHEIGHT != 32)
#error("Height incorrect, please change Adafruit_SSD1306.h!");
#endif
#if (_SS_MAX_RX_BUFF < 128)
#error("Serial RX buffer to small, please change in SoftwareSerial.h!");
#endif
// For distance computation
bool gps_fix_first = true;
float gps_last_lon = 0, gps_last_lat = 0;
unsigned long int gps_distance = 0;
#endif
// Geiger settings ------------------------------------------------------------
#define LINE_SZ 100
#define BUFFER_SZ 12
#define STRBUFFER_SZ 32
#define AVAILABLE 'A' // indicates geiger data are ready (available)
#define VOID 'V' // indicates geiger data not ready (void)
#define DEFAULT_YEAR 2013
#define NX 12
#define TIME_INTERVAL 5000
// log file headers
#define LOGFILE_HEADER "# NEW LOG\n# format="
char logfile_name[13]; // placeholder for filename
bool logfile_ready = false;
// geiger statistics
unsigned long shift_reg[NX] = {0};
unsigned long reg_index = 0;
unsigned long total_count = 0;
unsigned long max_count = 0;
unsigned long uptime = 0;
int uphour = 0;
int upminute = 0;
int str_count = 0;
int maxLength_over_k = 3;
char geiger_status = VOID;
// the line buffer for serial receive and send
static char line[LINE_SZ];
static char strbuffer[STRBUFFER_SZ];
static char strbuffer1[STRBUFFER_SZ];
// Pulse counter --------------------------------------------------------------
#if ENABLE_HARDWARE_COUNTER
// Hardware counter
#include "HardwareCounter.h"
HardwareCounter hwc(HARDWARE_COUNTER_TIMER1, TIME_INTERVAL);
#else
// Interrupt counter
#include "InterruptCounter.h"
#endif
#if ENABLE_HARDWARE_COUNTER
#if ENABLE_SLEEPMODE
#define IS_READY (1)
#else
#define IS_READY (hwc.available())
#endif
#else
#define IS_READY (interruptCounterAvailable())
#endif
// OpenLog settings -----------------------------------------------------------
#if ENABLE_OPENLOG
#define OPENLOG_RETRY 200
SoftwareSerial OpenLog(OPENLOG_RX_PIN, OPENLOG_TX_PIN);
static const int resetOpenLog = OPENLOG_RST_PIN;
#endif
bool openlog_ready = false;
// Gps settings ------------------------------------------------------------
TinyGPS gps(true);
#define GPS_INTERVAL 1000
char gps_status = VOID;
#if ENABLE_SOFTGPS
SoftwareSerial gpsSerial(GPS_RX_PIN, GPS_TX_PIN);
#endif
// Gps data buffers
static char lat[BUFFER_SZ];
static char lon[BUFFER_SZ];
// MTK33x9 chipset
#define PMTK_SET_NMEA_UPDATE_1HZ "$PMTK220,1000*1F"
#define PMTK_SET_NMEA_OUTPUT_ALLDATA "$PMTK314,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0*28"
#define PMTK_SET_NMEA_OUTPUT_RMCGGA "$PMTK314,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0*28"
#define PMTK_HOT_START "$PMTK101*32"
#define PMTK_COLD_START "$PMTK104*37"
#define SBAS_ENABLE "$PMTK313,1*2E\r\n"
#define DGPS_WAAS_ON "$PMTK301,2*2E\r\n"
#if ENABLE_STATIC_GPS
#include <avr/pgmspace.h>
// GPS test sentences
char strGPRMC[] PROGMEM = "$GPRMC,201547.000,A,3014.5527,N,09749.5808,W,0.24,163.05,040109,,*1A";
char strGPGGA[] PROGMEM = "$GPGGA,201548.000,3014.5529,N,09749.5808,W,1,07,1.5,225.6,M,-22.5,M,18.8,0000*78";
char *teststrs[2] = {strGPRMC, strGPGGA};
static void sendstring(TinyGPS &gps, const PROGMEM char *str)
{
while (true)
{
char c = pgm_read_byte_near(str++);
if (!c) break;
gps.encode(c);
}
gps.encode('\r');
gps.encode('\n');
}
#endif
// Function definitions ---------------------------------------------------------
// Atmel Tips and Tricks: 3.6 Tip #6 – Access types: Static
static unsigned long cpm_gen();
static bool gps_gen_filename(TinyGPS &gps, char *buf);
static bool gps_gen_timestamp(TinyGPS &gps, char *buf, unsigned long counts, unsigned long cpm, unsigned long cpb);
static char checksum(char *s, int N);
#if ENABLE_OPENLOG
static void setupOpenLog();
static bool loadConfig(char *fileName);
static void createFile(char *fileName);
#endif
static void gps_program_settings();
static float read_voltage(int pin);
static int availableMemory();
static unsigned long elapsedTime(unsigned long startTime);
#if ENABLE_100M_TRUNCATION
static void truncate_100m(char *latitude, char *longitude);
#endif
// Sleep mode -----------------------------------------------------------------
#if ENABLE_SLEEPMODE
#include <avr/sleep.h>
#include <avr/power.h>
volatile int f_wdt=1;
ISR(WDT_vect)
{
if(f_wdt == 0)
{
f_wdt=1;
}
else
{
}
}
void enableSleepTimer(void)
{
cli();
wdt_reset();
// Setup WDT
// Clear the reset flag
MCUSR &= ~(1<<WDRF);
// Set WDCE (4 clock cycles updates)
WDTCSR |= (1<<WDCE) | (1<<WDE);
// Set new watchdog timeout prescaler value
WDTCSR = 1<<WDP3; // 4.0 seconds
// Enable the WD interrupt
WDTCSR |= _BV(WDIE);
sei();
}
void disableSleepTimer(void)
{
cli();
wdt_reset();
// Setup WDT
// Clear the reset flag
MCUSR &= ~(1<<WDRF);
// Keep old prescaler setting to prevent unintentional time-out
WDTCSR |= (1<<WDCE) | (1<<WDE);
// Disable the WD interrupt
WDTCSR |= 0x00;
sei();
}
void enterSleep(void)
{
power_all_disable();
set_sleep_mode(SLEEP_MODE_STANDBY); // keep oscillator active
// Enable and enter sleep mode
sleep_enable();
sleep_mode();
// The program will continue from here after the WDT timeout
// Disable sleep and re-enable the peripherals
sleep_disable();
power_all_enable();
}
#endif
// Nano Settings --------------------------------------------------------------
static ConfigType config;
static DoseType dose;
#if ENABLE_OPENLOG
NanoSetup nanoSetup(OpenLog, config, dose, line, LINE_SZ);
#endif
// ****************************************************************************
// Setup
// ****************************************************************************
void setup()
{
#ifdef ENABLE_CUSTOM_FN
pinMode(CUSTOM_FN_PIN, INPUT_PULLUP);
#endif
#ifdef GPS_LED_PIN
pinMode(GPS_LED_PIN, OUTPUT);
#endif
#ifdef LOGALARM_LED_PIN
pinMode(LOGALARM_LED_PIN, OUTPUT);
#endif
pinMode(GEIGIE_TYPE_PIN, INPUT);
Serial.begin(9600);
#ifndef ENABLE_SLEEPMODE
// enable and reset the watchdog timer
wdt_enable(WDTO_8S);
wdt_reset();
#endif
#if ENABLE_OPENLOG
// Load EEPROM settings
nanoSetup.initialize();
OpenLog.begin(9600);
setupOpenLog();
if (openlog_ready) {
nanoSetup.loadFromFile("SAFECAST.TXT");
}
#endif
#if ENABLE_HARDWARE_COUNTER
// Start the Pulse Counter!
hwc.start();
#else
// Create pulse counter
interruptCounterSetup(INTERRUPT_COUNTER_PIN, TIME_INTERVAL);
// And now Start the Pulse Counter!
interruptCounterReset();
#endif
#if ENABLE_SOFTGPS
gpsSerial.begin(9600);
// Put GPS serial in listen mode
gpsSerial.listen();
// initialize and program the GPS module
gps_program_settings();
#endif
#if ENABLE_EEPROM_DOSE
EEPROM_readAnything(BMRDD_EEPROM_DOSE, dose);
#endif
// setup analog reference to read battery and boost voltage
analogReference(INTERNAL);
#if ENABLE_SLEEPMODE
enableSleepTimer();
#endif
#if ENABLE_SSD1306
display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
// show splashscreen logo
display.display();
delay(1000);
// show 3nd splashscreen
display.clearDisplay();
display.setTextColor(WHITE);
display.setTextSize(1);
sprintf_P(strbuffer, PSTR("Geigie Nano %s"), NANO_VERSION);
display.setCursor((128-((strlen(strbuffer)+1)*6))/2, 0);
if (config.type == GEIGIE_TYPE_B) {
display.print("b");
} else {
display.print("x");
}
display.print(strbuffer);
display.setCursor(8, 8);
int battery =((read_voltage(VOLTAGE_PIN)-30)*12.5);
battery=(battery+20);
if (battery < 0) battery=1;
if (battery > 100) battery=100;
sprintf_P(strbuffer, PSTR("Battery= %02d"), battery);
display.print(strbuffer);
sprintf_P(strbuffer, PSTR("%%"));
display.print(strbuffer);
display.setCursor(55, 16);
sprintf_P(strbuffer, PSTR("Alarm=%d"), config.alarm_level);
display.print(strbuffer);
sprintf_P(strbuffer, PSTR("CPM"));
display.print(strbuffer);
display.setCursor(8, 16);
sprintf_P(strbuffer, PSTR("Mode =%d"), config.sensor_mode);
display.print(strbuffer);
display.setTextSize(1);
display.setCursor(85, 8);
sprintf_P(strbuffer, PSTR("#%04d"), config.device_id);
display.print(strbuffer);
display.setTextSize(1);
if (strlen(config.user_name)) {
display.setCursor((128-(strlen(config.user_name)*6))/2, 24); // textsize*8
display.print(config.user_name);
}
display.display();
delay(9000);
#endif
//Serial.println(availableMemory());
}
// ****************************************************************************
// Main loop
// ****************************************************************************
void loop()
{
bool gpsReady = false;
#if ENABLE_GEIGIE_SWITCH
// Check geigie mode switch
if (analogRead(GEIGIE_TYPE_PIN) > GEIGIE_TYPE_THRESHOLD) {
config.type = GEIGIE_TYPE_B; // XGeigie;
} else {
config.type = GEIGIE_TYPE_X; // BGeigie
digitalWrite(LOGALARM_LED_PIN, LOW);
}
#endif
#if ENABLE_GEIGIE_SWITCH
//Switch to bGeigie Xmode on low battery
int battery = ((read_voltage(VOLTAGE_PIN)-30));
if (battery < 1) {
delay(1000);
config.type = GEIGIE_TYPE_X; // BGeigie
}
#endif
#if ENABLE_SLEEPMODE
if(f_wdt == 1)
{
disableSleepTimer();
#endif
#if ENABLE_SOFTGPS
// Put GPS serial in listen mode
gpsSerial.listen();
#endif
// For GPS_INTERVAL we work on parsing GPS sentences
for (unsigned long start = millis(); (elapsedTime(start) < GPS_INTERVAL) and !IS_READY;)
{
#if ENABLE_STATIC_GPS
for (int i=0; i<2; ++i)
{
sendstring(gps, teststrs[i]);
}
#else
#if ENABLE_SOFTGPS
while (gpsSerial.available())
{
char c = gpsSerial.read();
#else
while (Serial.available())
{
char c = Serial.read();
#endif
#if ENABLE_GPS_NMEA_LOG
Serial.print(c); // uncomment this line if you want to see the GPS data flowing
#endif
if (gps.encode(c)) // Did a new valid sentence come in?
gpsReady = true;
}
#endif
}
#if ENABLE_SLEEPMODE
// Will wakeup in 4 seconds from now
enableSleepTimer();
#endif
#ifdef GPS_LED_PIN
if ((gpsReady) || (gps_status == AVAILABLE)) {
// digitalWrite(GPS_LED_PIN, HIGH);
} else {
// digitalWrite(GPS_LED_PIN, LOW);
}
#endif
// generate CPM every TIME_INTERVAL seconds
if IS_READY {
unsigned long cpm=0, cpb=0;
#ifndef ENABLE_SLEEPMODE
// first, reset the watchdog timer
wdt_reset();
#endif
#if ENABLE_HARDWARE_COUNTER
// obtain the count in the last bin
cpb = hwc.count();
// reset the pulse counter
hwc.start();
#else
// obtain the count in the last bin
cpb = interruptCounterCount();
// reset the pulse counter
interruptCounterReset();
#endif
// insert count in sliding window and compute CPM
shift_reg[reg_index] = cpb; // put the count in the correct bin
reg_index = (reg_index+1) % NX; // increment register index
cpm = cpm_gen(); // compute sum over all bins
// update the total counter
total_count += cpb;
uptime += 5;
// update max cpm
if (cpm > max_count) max_count = cpm;
#if ENABLE_EEPROM_DOSE
dose.total_count += cpb;
dose.total_time += 5;
if (dose.total_time % BMRDD_EEPROM_DOSE_WRITETIME == 0) {
EEPROM_writeAnything(BMRDD_EEPROM_DOSE, dose);
}
#endif
// set status of Geiger
if (str_count < NX)
{
geiger_status = VOID;
str_count++;
} else if (cpm == 0) {
geiger_status = VOID;
} else {
geiger_status = AVAILABLE;
}
#if ENABLE_WAIT_GPS_FOR_LOG
if ((!logfile_ready) && (gps_status == AVAILABLE))
#else
if (!logfile_ready)
#endif
{
if (gps_gen_filename(gps, logfile_name)) {
logfile_ready = true;
#if ENABLE_OPENLOG
#ifdef LOGALARM_LED_PIN
//digitalWrite(LOGALARM_LED_PIN, HIGH);
#endif
createFile(logfile_name);
// print header to serial
sprintf_P(strbuffer, PSTR(LOGFILE_HEADER));
OpenLog.print(strbuffer);
DEBUG_PRINT(strbuffer);
sprintf_P(strbuffer, PSTR(NANO_VERSION));
OpenLog.print(strbuffer);
DEBUG_PRINT(strbuffer);
#ifdef ENABLE_LND_DEADTIME
sprintf_P(strbuffer, PSTR("nano\n# deadtime=on\n"));
#else
sprintf_P(strbuffer, PSTR("nano\n"));
#endif
OpenLog.print(strbuffer);
#endif // ENABLE_OPENLOG
}
}
// generate timestamp. only update the start time if
// we printed the timestamp. otherwise, the GPS is still
// updating so wait until its finished and generate timestamp
memset(line, 0, LINE_SZ);
gps_gen_timestamp(gps, line, shift_reg[reg_index], cpm, cpb);
// Printout line
Serial.println(line);
#if ENABLE_OPENLOG
if ((logfile_ready) && (GEIGIE_TYPE_B == config.type)) {
#ifdef LOGALARM_LED_PIN
//digitalWrite(LOGALARM_LED_PIN, HIGH);
#endif
// Put OpenLog serial in listen mode
OpenLog.listen();
OpenLog.println(line);
#if ENABLE_DIAGNOSTIC
dtostrf(read_voltage(VOLTAGE_PIN), 0, 1, strbuffer);
OpenLog.print("$DIAG,");
OpenLog.println(strbuffer);
#endif
}
#ifdef LOGALARM_LED_PIN
//digitalWrite(LOGALARM_LED_PIN, LOW);
#endif
#endif
}
}
// ****************************************************************************
// Utility functions
// ****************************************************************************
/* calculate elapsed time. this takes into account rollover */
unsigned long elapsedTime(unsigned long startTime) {
unsigned long stopTime = millis();
if (startTime >= stopTime) {
return startTime - stopTime;
} else {
return (ULONG_MAX - (startTime - stopTime));
}
}
#if ENABLE_OPENLOG
/* wait for openlog prompt */
bool waitOpenLog(bool commandMode) {
int safeguard = 0;
bool result = false;
while(safeguard < OPENLOG_RETRY) {
safeguard++;
if(OpenLog.available())
if(OpenLog.read() == (commandMode ? '>':'<')) break;
delay(10);
}
if (safeguard >= OPENLOG_RETRY) {
} else {
result = true;
}
return result;
}
/* setups up the software serial, resets OpenLog */
void setupOpenLog() {
pinMode(resetOpenLog, OUTPUT);
OpenLog.listen();
// reset OpenLog
digitalWrite(resetOpenLog, LOW);
delay(100);
digitalWrite(resetOpenLog, HIGH);
if (!waitOpenLog(true)) {
logfile_ready = true;
} else {
openlog_ready = true;
}
}
/* create a new file */
void createFile(char *fileName) {
int result = 0;
int safeguard = 0;
OpenLog.listen();
do {
result = 0;
do {
#ifndef ENABLE_SLEEPMODE
// reset the watchdog timer
wdt_reset();
#endif
OpenLog.print("append ");
OpenLog.print(fileName);
OpenLog.write(13); //This is \r
if (!waitOpenLog(false)) {
break;
}
result = 1;
} while (0);
if (0 == result) {
// reset OpenLog
digitalWrite(resetOpenLog, LOW);
delay(100);
digitalWrite(resetOpenLog, HIGH);
// Wait for OpenLog to return to waiting for a command
waitOpenLog(true);
}
} while (0 == result);
//OpenLog is now waiting for characters and will record them to the new file
}
#endif
/* compute check sum of N bytes in array s */
char checksum(char *s, int N)
{
int i = 0;
char chk = s[0];
for (i=1 ; i < N ; i++)
chk ^= s[i];
return chk;
}
/* compute cpm */
unsigned long cpm_gen()
{
unsigned int i;
unsigned long c_p_m = 0;
// sum up
for (i=0 ; i < NX ; i++)
c_p_m += shift_reg[i];
#ifdef ENABLE_LND_DEADTIME
// deadtime compensation (medcom international)
c_p_m = (unsigned long)((float)c_p_m/(1-(((float)c_p_m*1.8833e-6))));
#endif
return c_p_m;
}
/* generate log filename */
bool gps_gen_filename(TinyGPS &gps, char *buf) {
int year = DEFAULT_YEAR;
byte month = 0, day = 0, hour = 0, minute = 0, second = 0, hundredths = 0;
unsigned long age;
gps.crack_datetime(&year, &month, &day, &hour, &minute, &second, &hundredths, &age);
if (TinyGPS::GPS_INVALID_AGE == age) {
return false;
}
// Create the filename for that drive
sprintf_P(buf, PSTR("%04d%02d%02d.log"),config.device_id, month, day);
return true;
}
/* convert long integer from TinyGPS to string "xxxxx.xxxx" */
void get_coordinate_string(bool is_latitude, unsigned long val, char *buf)
{
unsigned long left = 0;
unsigned long right = 0;
left = val/100000;
right = (val - left*100000)/10;
if (is_latitude) {
sprintf_P(buf, PSTR("%04ld.%04ld"), left, right);
} else {
sprintf_P(buf, PSTR("%05ld.%04ld"), left, right);
}
}
/* convert long integer from TinyGPS to float WGS84 degrees */
float get_wgs84_coordinate(unsigned long val)
{
double result = 0.0;
result = val/10000000.0;
result = ((result-(int)result)/60.0)*100 + (int)result;
return (float)result;
}
/* render measurement in big digit on display */
//set extra variable for hot spot mode is_hotspot ad Boolean
void render_measurement(unsigned long value5sec,unsigned long value, bool is_cpm, int offset)
{
display.setCursor(0, offset);
display.setTextSize(2);
if (VOID == geiger_status) {
display.setTextColor(BLACK, WHITE); // 'inverted' text
} else {
display.setTextColor(WHITE);
}
// Cleanup temp buffer
memset(strbuffer1, 0, sizeof(strbuffer1));
// display 5 second fast update mode if alam level is higher as set level on sdcard.
if (value >config.alarm_level) {
value= (value5sec*12); // display 5 seconds data on display
} else {
}
// display in CPM
if (is_cpm) {
if(value >= 10000) {
dtostrf((float)(value/1000.0), 4, 3, strbuffer);
strncpy (strbuffer1, strbuffer, 3);
if (strbuffer1[strlen(strbuffer1)-1] == '.') {
strbuffer1[strlen(strbuffer1)-1] = 0;
}
display.print(strbuffer1);
sprintf_P(strbuffer, PSTR("kCPM"));
display.print(strbuffer);
} else {
dtostrf((float)value, 0, 0, strbuffer);
display.print(strbuffer);
sprintf_P(strbuffer, PSTR(" CPM"));
display.print(strbuffer);
}
} else {
// display in Sievert/h
if ((value/config.cpm_factor) >= 1000) {
dtostrf((float)(value/config.cpm_factor/1000.0), 4, 2, strbuffer);
strncpy (strbuffer1, strbuffer, 5);
if (strbuffer1[strlen(strbuffer1)-1] == '.') {
strbuffer1[strlen(strbuffer1)-1] = 0;
}
display.print(strbuffer1);
sprintf_P(strbuffer, PSTR(" mS/h"));
display.print(strbuffer);
} else if ((value/config.cpm_factor) >= 10) {
dtostrf((float)(value/config.cpm_factor/1.0), 4, 2, strbuffer);
strncpy (strbuffer1, strbuffer, 5);
if (strbuffer1[strlen(strbuffer1)-1] == '.') {
strbuffer1[strlen(strbuffer1)-1] = 0;
}
display.print(strbuffer1);
sprintf_P(strbuffer, PSTR(" uS/h"));
display.print(strbuffer);
} else {
dtostrf((float)(value/config.cpm_factor/1.0), 4, 3, strbuffer);
strncpy (strbuffer1, strbuffer, 6);
if (strbuffer1[strlen(strbuffer1)-1] == '.') {
strbuffer1[strlen(strbuffer1)-1] = 0;
}
display.print(strbuffer1);
sprintf_P(strbuffer, PSTR(" uS/h"));
display.print(strbuffer);
}
}
}
/* generate log result line */
bool gps_gen_timestamp(TinyGPS &gps, char *buf, unsigned long counts, unsigned long cpm, unsigned long cpb)
{
int year = DEFAULT_YEAR;
byte month = 0, day = 0, hour = 0, minute = 0, second = 0, hundredths = 0;
long int x = 0, y = 0;
float faltitude = 0, fspeed = 0;
unsigned short nbsat = 0;
unsigned long precission = 0;
unsigned long age;
byte len, chk;
char NS = 'N';
char WE = 'E';
static int toggle = 0;
memset(lat, 0, BUFFER_SZ);
memset(lon, 0, BUFFER_SZ);
memset(strbuffer, 0, STRBUFFER_SZ);
// get GPS date
gps.crack_datetime(&year, &month, &day, &hour, &minute, &second, &hundredths, &age);
if (TinyGPS::GPS_INVALID_AGE == age) {
year = 2012, month = 0, day = 0, hour = 0, minute = 0, second = 0, hundredths = 0;
}
// get GPS position, altitude and speed
gps.get_position(&x, &y, &age);
if (!gps.status()) {
gps_status = VOID;
} else {
gps_status = AVAILABLE;
}
faltitude = gps.f_altitude();
fspeed = gps.f_speed_kmph();
nbsat = gps.satellites();
precission = gps.hdop();
if (x < 0) { NS = 'S'; x = -x;}
if (y < 0) { WE = 'W'; y = -y;}
get_coordinate_string(true, x == TinyGPS::GPS_INVALID_ANGLE ? 0 : x, lat);
get_coordinate_string(false, y == TinyGPS::GPS_INVALID_ANGLE ? 0 : y, lon);
dtostrf(faltitude == TinyGPS::GPS_INVALID_F_ALTITUDE ? 0.0 : faltitude, 0, 2, strbuffer);
#if ENABLE_100M_TRUNCATION
truncate_100m(lat, lon);
#endif
// prepare the log entry
memset(buf, 0, LINE_SZ);
sprintf_P(buf, PSTR("$%s,%04d,%02d-%02d-%02dT%02d:%02d:%02dZ,%ld,%ld,%ld,%c,%s,%c,%s,%c,%s,%c,%d,%ld"), \
NANO_HEADER, \
config.device_id, \
year, month, day, \
hour, minute, second, \
cpm, \
cpb, \
total_count, \
geiger_status, \
lat, NS,\
lon, WE,\
strbuffer, \
gps_status, \
nbsat == TinyGPS::GPS_INVALID_SATELLITES ? 0 : nbsat, \
precission == TinyGPS::GPS_INVALID_HDOP ? 0 : precission);
len = strlen(buf);
buf[len] = '\0';
// generate checksum
chk = checksum(buf+1, len);
// add checksum to end of line before sending
if (chk < 16)
sprintf_P(buf + len, PSTR("*0%X"), (int)chk);
else
sprintf_P(buf + len, PSTR("*%X"), (int)chk);
#if ENABLE_SSD1306
// compute distance
if (gps.status()) {
int trigger_dist = 25;
float flat = get_wgs84_coordinate(x);
float flon = get_wgs84_coordinate(y);
if(fspeed > 5)
// fpspeed/3.6 * 5s = 6.94 m
trigger_dist = 5;
if(fspeed > 10)
trigger_dist = 10;
if(fspeed > 15)
trigger_dist = 20;
if(gps_fix_first)
{
gps_last_lat = flat;
gps_last_lon = flon;
gps_fix_first = false;
}
else
{
// Distance in meters
unsigned long int dist = (long int)TinyGPS::distance_between(flat, flon, gps_last_lat, gps_last_lon);
if (dist > trigger_dist)
{
gps_distance += dist;
gps_last_lat = flat;
gps_last_lon = flon;
}
}
}
// ready to display the data on screen
display.clearDisplay();
int offset = 0;
if (config.type == GEIGIE_TYPE_B) {
// **********************************************************************
// bGeigie mode
// **********************************************************************
// Display uptime
uphour = uptime/3600;
upminute = uptime/60 - uphour*60;
sprintf_P(strbuffer, PSTR("%02dh%02dm"), uphour, upminute);
display.setCursor(92, offset+24);
display.setTextSize(1);
display.setTextColor(WHITE);
display.println(strbuffer);
//Display Alarm LED if GPS is locked and Radiation is valid
#ifdef LOGALARM_LED_PIN
if ((geiger_status == AVAILABLE) && (gps.status())){
if (openlog_ready) {
digitalWrite(LOGALARM_LED_PIN, HIGH);
} else {
digitalWrite(LOGALARM_LED_PIN, LOW);
}
} else {
digitalWrite(LOGALARM_LED_PIN, LOW);
}
#endif
// Display CPM (with deadtime compensation)
render_measurement(cpb, cpm, true, offset);