I am doing a project right now that involves a Neo 6M GPS module, a micro sd card module and 6 BH1750 light sensors. All the modules work fine when testing them standalone, especially the GPS module works as it should with TinyGPS++ example sketches. When i run the "DeviceExample" sketch, it takes around 6 seconds to revieve time and around 10 seconds to recieve the location. However in my own sketch it only updates time every 3 or more seconds as well as i think it also updates location very slow.
Sometimes it even works for a short time, sometimes it never works, no matter how long the sketch runs. Here is an example log: As you can see, the sketch did not retrieve full date 20 secs after starting, but time is updating every second. Yet you can see that the time isn't updated anymore 5 seconds before the module is retrieving location and then the update interval gets slowed down, even though the module itself still indicates the update interval of around .5-1 second.
The Neo 6M GPS module is connected directly to RX,TX,GND,VCC and works fine with the example sketches. Has anybody a solution to this?
ms(), longitude, latitude,month,day,year,hour,min,sec,centisecs,alt,6 lux values
17642, 0.000000, 0.000000,0,0,2000,22,26,13,95,0.00,106,106,6,0,3,106,
17980, 0.000000, 0.000000,0,0,2000,22,26,13,95,0.00,106,106,6,0,3,106,
18333, 0.000000, 0.000000,0,0,2000,22,26,13,95,0.00,106,106,6,0,3,106,
18803, 0.000000, 0.000000,0,0,2000,22,26,14,95,0.00,106,106,6,0,3,93,
19131, 0.000000, 0.000000,0,0,2000,22,26,14,95,0.00,33,33,6,0,3,0,
19530, 0.000000, 0.000000,0,0,2000,22,26,14,95,0.00,0,0,6,0,3,40,
19956, 0.000000, 0.000000,0,0,2000,22,26,15,95,0.00,106,106,6,0,3,106,
20311, 0.000000, 0.000000,0,0,2000,22,26,15,95,0.00,106,106,6,0,3,106,
20787, 0.000000, 0.000000,0,0,2000,22,26,16,95,0.00,106,106,6,0,3,106,
21114, 0.000000, 0.000000,0,0,2000,22,26,16,95,0.00,106,106,6,0,3,106,
21504, 0.000000, 0.000000,0,0,2000,22,26,16,95,0.00,106,106,6,0,3,106,
21942, 0.000000, 0.000000,0,0,2000,22,26,17,95,0.00,106,106,6,0,3,106,
22292, 0.000000, 0.000000,0,0,2000,22,26,17,95,0.00,106,106,6,0,3,106,
...
240540, 0.000000, 0.000000,10,14,2018,22,29,56,95,0.00,106,106,6,0,3,106,
240869, 0.000000, 0.000000,10,14,2018,22,29,56,95,0.00,106,106,6,0,3,106,
241249, 0.000000, 0.000000,10,14,2018,22,29,56,95,0.00,106,106,6,0,3,106,
241697, 0.000000, 0.000000,10,14,2018,22,29,57,95,0.00,106,106,6,0,3,106,
242035, 0.000000, 0.000000,10,14,2018,22,29,57,95,0.00,106,106,6,0,3,106,
242531, 0.000000, 0.000000,10,14,2018,22,29,58,95,0.00,109,109,6,0,3,106,
242859, 0.000000, 0.000000,10,14,2018,22,29,58,95,0.00,106,106,6,0,3,106,
243238, 0.000000, 0.000000,10,14,2018,22,29,58,95,0.00,106,106,6,0,3,106,
243687, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,106,106,6,0,3,106,
244016, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,106,106,6,0,3,106,
244425, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,106,106,6,0,3,106,
244892, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,106,106,6,0,3,106,
245260, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,106,106,6,0,3,106,
245754, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,106,106,6,0,3,106,
246083, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,106,106,6,0,3,106,
246494, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,106,109,6,0,3,106,
246947, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,109,109,6,0,3,106,
247320, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,106,106,6,0,3,106,
247820, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,109,106,6,0,3,106,
248160, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,106,106,6,0,3,106,
248676, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,106,106,6,0,3,106,
249027, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,106,106,6,0,3,106,
249425, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,106,106,6,0,3,106,
249889, 0.000000, 0.000000,10,14,2018,22,29,59,95,0.00,106,109,6,0,3,106,
250253,xxxxx,xxxxx,10,14,2018,22,30,6,0,0.00,106,106,6,0,3,106,
250768,xxxxx,xxxxx,10,14,2018,22,30,6,0,0.00,106,106,6,0,3,106,
251097,xxxxx,xxxxx,10,14,2018,22,30,6,0,0.00,106,106,6,0,3,106,
251608,xxxxx,xxxxx,10,14,2018,22,30,8,0,646.30,109,106,6,0,3,106,
252021,xxxxx,xxxxx,10,14,2018,22,30,8,0,646.30,106,106,6,0,3,106,
252412,xxxxx,xxxxx,10,14,2018,22,30,8,0,646.30,106,106,6,0,3,106,
252883,xxxxx,xxxxx,10,14,2018,22,30,8,0,646.30,109,106,6,0,3,106,
253248,xxxxx,xxxxx,10,14,2018,22,30,8,0,646.30,106,106,6,0,3,106,
253765,xxxxx,xxxxx,10,14,2018,22,30,8,0,646.30,106,106,6,0,3,106,
254094,xxxxx,xxxxx,10,14,2018,22,30,8,0,646.30,106,106,6,0,3,106,
254608,xxxxx,xxxxx,10,14,2018,22,30,11,0,646.30,106,109,6,0,3,106,
255020,xxxxx,xxxxx,10,14,2018,22,30,11,0,646.30,106,106,6,0,3,106,
255412,xxxxx,xxxxx,10,14,2018,22,30,11,0,646.30,106,106,6,0,3,106,
255882,xxxxx,xxxxx,10,14,2018,22,30,11,0,646.30,106,106,6,0,3,106,
Here is the sketch:
////
//initialising constants
static const int out_min = 5;
static const int out_max = 10;
static
const uint8_t RXPin = 0,
TXPin = 1;
static
const uint16_t GPSBaud = 9600;
static
const uint16_t chipSelect = 4;
//initialising Objects
SoftwareSerial ss(RXPin, TXPin);
TinyGPSPlus gps;
BH1750 active_sensor(0x23); // We will use this adress for stating the active sensor
BH1750 inactive_sensor(0x5C);
SdFat sd;
SdFile file;
//initialising variables for collecting data
float lng_;
float lat_;
String month_ = "";
String day_ = "";
String year_ = "";
uint16_t lux_ = 0;
uint8_t hour_ = 0;
uint8_t min_ = 0;
uint8_t second_ = 0;
uint8_t centisecond_ = 0;
float altitude_ = 0;
unsigned long runtime_ = 0;
uint16_t values[6];
char buf[6];
char data_buffer[12];
char fileName[13] = FILE_BASE_NAME "00.csv";
uint8_t lines = 0;
void setup() {
digitalWrite(2, HIGH);
pinMode(2, INPUT);
Serial.begin(115200);
Wire.begin();
pinMode(3, OUTPUT);
digitalWrite(3, LOW);
for (int i = out_min; i <= out_max; i++)
{
pinMode(i, OUTPUT);
digitalWrite(i, LOW);
}
ss.begin(GPSBaud);
if (active_sensor.begin(BH1750::CONTINUOUS_HIGH_RES_MODE)) {
Serial.println(F("BH1750 Advanced begin"));
} else {
Serial.println(F("Error initialising BH1750"));
}
}
void(* resetFunc) (void) = 0;
void loop() {
while (ss.available() > 0)
if (gps.encode(ss.read())) {
digitalWrite(3, HIGH);
}
if (millis() > 5000 && gps.charsProcessed() < 10) {
while (true);
}
if (gps.location.isValid()) {
lat_ = gps.location.lat();
lng_ = gps.location.lng();
}
if (gps.date.isValid()) {
day_ = gps.date.day();
month_ = gps.date.month();
year_ = gps.date.year();
}
if (gps.time.isValid()) {
hour_ = gps.time.hour();
min_ = gps.time.minute();
second_ = gps.time.second();
centisecond_ = gps.time.centisecond();
altitude_ = gps.altitude.meters();
}
int i;
for (i = 5; i <= 10; i++) {
digitalWrite(i, LOW);
switch (i) {
case 7:
active_sensor.begin(BH1750::CONTINUOUS_HIGH_RES_MODE);
case 8:
active_sensor.begin(BH1750::CONTINUOUS_HIGH_RES_MODE);
case 9:
active_sensor.begin(BH1750::CONTINUOUS_HIGH_RES_MODE_2);
case 10:
active_sensor.begin(BH1750::CONTINUOUS_HIGH_RES_MODE_2);
case 5:
active_sensor.begin(BH1750::CONTINUOUS_LOW_RES_MODE);
case 6:
active_sensor.begin(BH1750::CONTINUOUS_LOW_RES_MODE);
}
delay(15);
lux_ = active_sensor.readLightLevel();
values[i - 5] = lux_;
digitalWrite(i, HIGH);
}
delay(10);
digitalWrite(3, LOW);
delay(5);
file.print(millis());
file.write(',');
dtostrf(lng_, 9, 6, data_buffer);
file.print(data_buffer);
file.write(',');
dtostrf(lat_, 9, 6, data_buffer);
file.print(data_buffer);
file.write(',');
file.print(month_);
file.write(',');
file.print(day_);
file.write(',');
file.print(year_);
file.write(',');
file.print(hour_);
file.write(',');
file.print(min_);
file.write(',');
file.print(second_);
file.write(',');
file.print(centisecond_);
file.write(',');
file.print(altitude_);
file.write(',');
for (int i = 0; i <= 5; i++) {
file.print(values[i]);
file.write(',');
}
file.println();
lines++;
int state = digitalRead(2);
}
Example Output:
