TinyGPS problem
Posted: Mon Apr 01, 2019 4:52 pmI have spent three very long evenings on this and can not find the problem. I am beginning to suspect it is a conflict with SPIFFS and softwareserial.
I did not want to use softwareserial but can not get the code to run if I remove it. Currently I have RX from the GPS module ( NEO-6M on a breakout board with arial attached ) on pin D1 and TX on pin D2. As I say this works for the code mentioned below. My other problem is my PC is nowhere near a window and I do not have a USB lead long enough to reach one!
If I run the code from https://circuitdigest.com/microcontroll ... emcu-esp12 I get a webpage with the correct data. But when I add the SPIFFs code I get no data; please can somebody point out where I am going wrong.
I did not want to use softwareserial but can not get the code to run if I remove it. Currently I have RX from the GPS module ( NEO-6M on a breakout board with arial attached ) on pin D1 and TX on pin D2. As I say this works for the code mentioned below. My other problem is my PC is nowhere near a window and I do not have a USB lead long enough to reach one!
If I run the code from https://circuitdigest.com/microcontroll ... emcu-esp12 I get a webpage with the correct data. But when I add the SPIFFs code I get no data; please can somebody point out where I am going wrong.
Code: Select all
#include <TinyGPS++.h>
#include <SoftwareSerial.h>
#include <FS.h> // Include the SPIFFS library
TinyGPSPlus gps; // The TinyGPS++ object
SoftwareSerial ss(4, 5); // The serial connection to the GPS device
float latitude , longitude;
int year , month , date, hour , minute , second;
String date_str , time_str , lat_str , lng_str;
int pm, i;
void setup()
{
Serial.begin(115200);
ss.begin(9600);
Serial.println();
SPIFFS.begin(); // Start the SPI Flash Files System
// Next lines have to be done ONLY ONCE!!!!!When SPIFFS is formatted ONCE you can comment these lines out!!
/*Serial.println("Please wait 30 secs for SPIFFS to be formatted");
SPIFFS.format();
Serial.println("Spiffs formatted");*/
}
void loop()
{
while (ss.available() > 0)
if (gps.encode(ss.read()))
{
if (gps.location.isValid())
{
latitude = gps.location.lat();
lat_str = String(latitude , 6);
longitude = gps.location.lng();
lng_str = String(longitude , 6);
}
if (gps.date.isValid())
{
date_str = "";
date = gps.date.day();
month = gps.date.month();
year = gps.date.year();
if (date < 10)
date_str = '0';
date_str += String(date);
date_str += " / ";
if (month < 10)
date_str += '0';
date_str += String(month);
date_str += " / ";
if (year < 10)
date_str += '0';
date_str += String(year);
}
if (gps.time.isValid())
{
time_str = "";
hour = gps.time.hour();
minute = gps.time.minute();
second = gps.time.second();
minute = (minute + 30);
if (minute > 59)
{
minute = minute - 60;
hour = hour + 1;
}
hour = (hour + 5) ;
if (hour > 23)
hour = hour - 24;
if (hour >= 12)
pm = 1;
else
pm = 0;
hour = hour % 12;
if (hour < 10)
time_str = '0';
time_str += String(hour);
time_str += " : ";
if (minute < 10)
time_str += '0';
time_str += String(minute);
time_str += " : ";
if (second < 10)
time_str += '0';
time_str += String(second);
if (pm == 1)
time_str += " PM ";
else
time_str += " AM ";
}
}
String s = "";
s += lat_str;
s += "+";
s += lng_str;
s += " ";
s += date_str;
s += " ";
s += time_str;
// Save data to SPIFFS
// open file for writing
File f = SPIFFS.open("/GPS.txt", "a+");
if (!f) {
Serial.println("file open failed");
}
Serial.println("====== Writing to SPIFFS file =========");
f.println(s);
f.close();
String contents = "";
// open file for reading
f = SPIFFS.open("/GPS.txt", "r");
if (!f) {
Serial.println("file open failed");
} Serial.println("====== Reading from SPIFFS file =======");
for (i = 0; i < f.size(); i++) //Read upto complete file size
{
Serial.print((char)f.read());
}
f.close(); //Close file
Serial.println("File Closed");
delay(6000);
}