Hi TVR4,

Seems that particular sketch is just a little too big for your Arduino Uno.
I have compiled it for my Arduino Uno (can't run it of course), and it gave me a 63% memory use (20622 bytes).

On that note, I do not know what "sauvegarde SD" is, and I noticed that quite a few libraries are being used, even though it did not seem to be a problem for my Arduino Uno (R3).

Since your result is more than 30% bigger, which is quite significant, I can only make these assumptions;

1) Update your Arduino IDE (the most recent one seems to be 1.8.13).

2) Update the libraries as they may be outdated and bigger than the need to be.

Manually:

Under "Tools" - "Manage Libraries", verify that the use libraries are up to date.
I'd focus on the Adafruit libraries (Adafruit_GFX and Adafruit_ST7735, and the libraries used by these 2 libraries.
I'd also check that you have the latest TinyGPS++ library (source where I found it).

Automatically (easier):

You can check the libraries easier for updates by using "Tools" - "Manage Libraries", and selecting "Updatable" to see which libraries have an update available). Then for each library you find, you'll just have to click each "Update" button.

If none of this helps ...

Did you add anything else? If so: please post the full code.
Since it It looks like you're running on an Arduino Uno as well, I'd assume your compiled result should be similar to my compile results (unless I goofed up somehow of course).

p.s. Just for reference, I've pasted the code from the link you provided below (cleaned up);

#include <Adafruit_GFX.h>
#include <Adafruit_ST7735.h>
#include <SoftwareSerial.h>
#include <TinyGPS++.h>

#define cs 10
#define dc 9
#define rst 8
#define OLED_RESET 5

Adafruit_ST7735 tft = Adafruit_ST7735(cs, dc, rst);
static const int RXPin = 4, TXPin = 3; //GPS communication
static const uint32_t GPSBaud = 9600;


TinyGPSPlus gps;
SoftwareSerial ss(RXPin, TXPin);

int x = 80;
int xh = 80;
int maxhigh = 0;
int maxspeed = 0, speed1 = 0;
int high1 = 0;;

void setup() {
  Serial.begin(9600);
  ss.begin(GPSBaud);

  tft.initR(INITR_GREENTAB);
  tft.fillScreen(ST7735_BLACK);
  tft.setCursor(5, 58);
  tft.setTextSize(1);
  tft.setTextColor(ST7735_GREEN, ST7735_BLACK);
  tft.print("initilisation");
}

void loop() {

  tft.setTextSize(1);
  tft.setTextColor(ST7735_GREEN, ST7735_BLACK);

  // affichage des informations a chaque bonne reception satellite
  while (ss.available() > 0) {
    gps.encode(ss.read());
    if (gps.location.isUpdated()) {

      cadre();

      tft.setCursor(5, 44);
      tft.setTextColor(ST7735_GREEN, ST7735_BLACK);
      tft.print("Latitude :");
      tft.setTextColor(ST7735_CYAN, ST7735_BLACK);
      tft.print(gps.location.lat(), 6);
      tft.setCursor(5, 58);
      tft.setTextColor(ST7735_GREEN, ST7735_BLACK);
      tft.print("Longitude :");
      tft.setTextColor(ST7735_CYAN, ST7735_BLACK);
      tft.print(gps.location.lng(), 6);

      //affichage ecran date 
      tft.setCursor(5, 7);
      tft.setTextColor(ST7735_GREEN, ST7735_BLACK);
      tft.print("date : ");
      tft.setTextColor(ST7735_CYAN, ST7735_BLACK);
      tft.print(gps.date.day());
      tft.print(" ");
      tft.print(gps.date.month());
      tft.print(" ");
      tft.print(gps.date.year());

      //affichage ecran heure
      tft.setCursor(5, 20);
      tft.setTextColor(ST7735_GREEN, ST7735_BLACK);
      tft.print("heure : ");
      tft.setTextColor(ST7735_CYAN, ST7735_BLACK);
      tft.print(gps.time.hour() + 1);
      tft.print(" ");
      tft.print(gps.time.minute());
      tft.print(" ");
      tft.print(gps.time.second());
      tft.print(" ");
      tft.setTextColor(ST7735_GREEN, ST7735_BLACK);
      tft.setCursor(3, 30);

      //affichage ecran altitude
      tft.setCursor(5, 80);
      tft.print("H  m :");
      tft.setTextColor(ST7735_CYAN, ST7735_BLACK);
      tft.print(gps.altitude.meters(), 0);
      tft.setTextColor(ST7735_CYAN, ST7735_BLACK);
      tft.print("   ");
      tft.setTextColor(ST7735_GREEN, ST7735_BLACK);
      tft.setCursor(5, 95);
      hmax();
      tft.print("Hmax :");
      tft.setTextColor(ST7735_CYAN, ST7735_BLACK);
      tft.print(maxhigh);
      tft.setTextColor(ST7735_CYAN, ST7735_BLACK);
      tft.print("   ");
      courbeh();

      //affichage ecran vitesse 
      tft.setCursor(5, 115);
      tft.setTextColor(ST7735_GREEN, ST7735_BLACK);
      tft.print("V act: ");
      tft.setTextColor(ST7735_CYAN, ST7735_BLACK);
      tft.print(gps.speed.kmph(), 0);
      tft.setTextColor(ST7735_CYAN, ST7735_BLACK);
      tft.print("   ");
      tft.setCursor(5, 130);
      tft.setTextColor(ST7735_GREEN, ST7735_BLACK);
      vmax();
      tft.print("vmax: ");
      tft.setTextColor(ST7735_CYAN, ST7735_BLACK);
      tft.print(maxspeed);
      tft.setTextColor(ST7735_CYAN, ST7735_BLACK);
      tft.print("   ");
      tft.setTextColor(ST7735_GREEN, ST7735_BLACK);
      courbe();

      //affichage ecran nombre de satellites
      tft.setCursor(5, 147);
      tft.setTextColor(ST7735_GREEN, ST7735_BLACK);
      tft.print("nombre de Sat  : ");
      tft.setTextColor(ST7735_CYAN, ST7735_BLACK);
      tft.print(gps.satellites.value());
      tft.setTextColor(ST7735_CYAN, ST7735_BLACK);
      tft.print("   ");

      // Horizontal Dim. of Precision (100ths-i32)
      Serial.print("HDOP = ");
      Serial.println(gps.hdop.value());

      smartDelay(400);

    }
  }
}
// delai pour une bonne recption
static void smartDelay(unsigned long ms) {
  unsigned long start = millis();
  
  do {
    while (ss.available())
      gps.encode(ss.read());
  } while (millis() - start < ms);
}
void cadre() {
  // affichage ecran
  //cadre
  tft.drawLine(0, 0, 130, 0, ST7735_RED);
  tft.drawLine(0, 1, 130, 1, ST7735_RED);
  tft.drawLine(0, 158, 130, 158, ST7735_RED);
  tft.drawLine(0, 142, 130, 142, ST7735_RED);
  tft.drawLine(0, 141, 130, 141, ST7735_RED);
  tft.drawLine(0, 107, 130, 107, ST7735_RED);
  tft.drawLine(0, 108, 130, 108, ST7735_RED);

  tft.drawLine(80, 108, 80, 140, ST7735_RED);
  tft.drawLine(81, 109, 81, 140, ST7735_RED);

  tft.drawLine(80, 70, 80, 108, ST7735_RED);
  tft.drawLine(81, 70, 81, 108, ST7735_RED);

  tft.drawLine(0, 159, 130, 159, ST7735_RED);
  tft.drawLine(0, 0, 0, 156, ST7735_RED);
  tft.drawLine(1, 1, 1, 157, ST7735_RED);
  tft.drawLine(127, 0, 127, 156, ST7735_RED);
  tft.drawLine(126, 0, 126, 156, ST7735_RED);
  tft.drawLine(0, 35, 130, 35, ST7735_RED);
  tft.drawLine(0, 36, 130, 36, ST7735_RED);
  tft.drawLine(0, 70, 130, 70, ST7735_RED);
  tft.drawLine(0, 71, 130, 71, ST7735_RED);

}

void courbe() {
  int nouvelleValeur;

  // converison vitesse max (350 km/h) en pixel
  nouvelleValeur = map((gps.speed.kmph()), 0, 150, 137, 110); // car l'cran a 64 pixels de haut

  x++;

  tft.drawPixel(x, nouvelleValeur, ST7735_CYAN);
  if (x > 123) {
    x = 80;
    tft.fillRect(82, 110, 43, 30, ST7735_BLACK);

  }
}
void courbeh() {

  int nouvelleValeurh;

  // converison vitesse max (350 km/h) en pixel
  nouvelleValeurh = map((gps.altitude.meters()), 0, 1000, 104, 72); // car l'cran a 64 pixels de haut

  xh++;

  tft.drawPixel(xh, nouvelleValeurh, ST7735_CYAN);
  if (xh > 123) {
    xh = 80;
    tft.fillRect(82, 72, 43, 35, ST7735_BLACK);

  }
}
void vmax() {
  // calcul vitese maximum 
  speed1 = (gps.speed.kmph());
  if (speed1 > maxspeed) {
    maxspeed = speed1;
  }
}
void hmax() {
  //      calcul altitude maximum 
  high1 = (gps.altitude.meters());
  if (high1 > maxhigh) {
    maxhigh = high1;
  }
}

Thank you so much fr the help.  

1) I do have an Arduino UNO R3
2) sauvegarde SD is french for SD Backup
3) I just updated my Arduino IDE and all libraries prior to downloading this code

4) I found the TinyGPS++ Library on the site you mentioned but can not find the version number on the web site.
5) Currently my IDE shows version 13.0.0 installed

I did not change any code.  I was in the process of translating the comments to English and changing the units to MPG and feet.
But when I had the problem compiling the code I did not finish the translation.  So the code I am working with is direct from the project

Hope this helps

Something is strange in the code pasted directly from the project site.  I deleted the code I had and pasted the code from the project site into a new file in the IDE.
The same error occurred.

I took the cleaned up code you posted and it compiled without errors. 
Sketch uses 20622 bytes (63%) of program storage space. Maximum is 32256 bytes.
Global variables use 868 bytes (42%) of dynamic memory, leaving 1180 bytes for local variables. Maximum is 2048 bytes.

The code you posted is for the datalogger without SD card support.  The issue is with the sauvegarde SD which supports the SD card

Ah OK, my bad ... my French is pretty terrible haha.
Could you post the entire code (maybe attach the ino sketch file)?

This way we can take a look and see where so much memory is being used. 😊 

Posted by: @hans

Ah OK, my bad ... my French is pretty terrible haha.
Could you post the entire code (maybe attach the ino sketch file)?

This way we can take a look and see where so much memory is being used. 😊 

Not to worry.  The secret was using google translate

I am attaching the code ino file directly from the project

Yep, getting the same 103% ....

Looking at the code, my best guess is that adding the SD.h library just makes it for a too high space requirement to accommodate all the included libraries. I have found quite a few posts (this one for example), running into the same issue.

Since the error message says:

Sketch uses 33260 bytes (103%) of program storage space. Maximum is 32256 bytes. text section exceeds available space in board

Global variables use 1571 bytes (76%) of dynamic memory, leaving 477 bytes for local variables. Maximum is 2048 bytes.
Sketch too big; see  http://www.arduino.cc/en/Guide/Troubleshooting#size  for tips on reducing it.
Error compiling for board Arduino Uno.

This makes me believe that all of these libraries (combined) have too much text or number constants defined (const, not #define).

When looking at sd.h I do notice (probably for a very good reason of course) that there a lot of constants defined.
Of course we cannot blame just sd.h, it is the combination of these libraries that is just too much.

But even if you could clean that up a little ... 1004 bytes is a lot of cleaning and I doubt it will be easy.

I'd start looking for alternative libraries.
I did see a few smaller libraries:

• FAT16 library,
• TinyFAT
• SDFat
• PetitFS

At first glance that last two looks promising, but I do not know if this will be a drop-in replacement and I don't know if this will even be useful for your purposes.  The last 2 seem to claim that they do support FAT16 and FAT32.

A too large SD library does seem quite common though (see this Google Search). 

Interesting to that just the SD library adds 40% 😱 .

Looks like I have some tinkering to do.  If I change the SD library I would guess that I would need to change the associated code as the syntax would be different?

I ordered the wrong display.  So while I am waiting for the correct one I will tinker with this

Let me know if you come up with anything else?

Thanks for the head start!

Yeah, and the tinkering is not going to be fun (but very satisfying if you get it to work).

I do not know if any of these libraries are drop-in replacements for the standard SD-library, but I cannot imagine it to be super hard.

Digging into PetitFS, I found no examples - so that one could be more challenging.
I did find an example though on another website: link. Not too complicated.

TinyFAT on the other hand comes with examples, and doesn't seem too complicated. It is however no longer maintained. Not sure if that is going to to a problem.

A quick look at SDFat, shows that it has examples as well, but for some reason I found them harder to read.

I could be wrong, but FAT16 library seems very old (not updated since 2009?).

Most of these work in a fashion that you have to "open" the file, then "write" to the file and finally "close" the file.
With a datalogger the question of course will be how often you'd want the file to be opened and closed.
SD cards are notoriously unreliable over time.

Note:

I happened to be playing with an ESP8266 today, a super cheap Arduino alternative (can use the same code as for your Arduino), but it comes with a few great advantages;

• Much cheaper (app. $5/per board)
• Significantly faster
• Much more memory (4 Mb!)
• Much smaller than most Arduino models
• Build in WiFi
• More GPIO pins

If there would be a downside then I'd say, it has only one analog pin, and it uses 3.3V on some pins (I need to investigate that some more what the implications are). But in the end you use it like a regular Arduino. So this may be an easier alternative.
Not sure where you're located, but I got these from Amazon US which can be bought from Amazon Germany as well.

I agree, tinkering is not how I wanted to learn arduino coding.  But I may not have a choice.

That alternative board looks really interesting.  Is there documentation somewhere?

Considering the cost, I think I am going to order one and see what I can do with it.

Keep me posted on your testing

Well, I just started with the ESP8266 myself and I just posted an article on my first experiences. 

I had mine laying around already for a while, but ... time is always an issue 😋 

Next experiment I'll be doing is controlling WS2812 LED strips. But that may be for tomorrow 🤪 

My only concern would be the 3.3 V levels - but from what I have seen, most people just ignore it hahah.

Looks like MakerFocus has these on sale for fathers day.  3 boards for $12.15

Oh wow, nice deal! 👍 😊 

I apologize for not posting the link before.  Would you recommend ordering anything else since there is a sale and free shipping?

https://www.makerfocus.com/products/3pcs-esp8266-nodemcu-lua-cp2102-esp-12f-internet-wifi-development-board-for-esp8266-esp01?_pos=6&_sid=9cc9455af&_ss=r