What's wrong with this error code?

Projects Programming
1

Hi all.
got the error : Error compiling for board Arduino Uno.
just a short code, how?

thanks
Adam

TEA5767N radio = TEA5767N();

extern unsigned char BigNumbers[];
extern unsigned char TinyFont[];

extern uint8_t splash[];
extern uint8_t signal5[];
extern uint8_t signal4[];
extern uint8_t signal3[];
extern uint8_t signal2[];
extern uint8_t signal1[];

int analogPin = 0;
int val = 0; 
int frequencyInt = 0;
float frequency = 0;
float previousFrequency = 0;
int signalStrength = 0;


#include <TFT_eSPI.h>
#include <SPI.h>

TFT_eSPI tft = TFT_eSPI();

#define TFT_GREY 0x5AEB


void setup() 
{

   Serial.begin(115200);
//  while (!Serial) ; // Needed for Leonardo only
  Serial.print("File   : "), Serial.println(__FILE__);
  const char compile_date[] = __DATE__ " " __TIME__;
  Serial.print("Compile timestamp: ");
  Serial.println(compile_date);
  
   tft.init();
  tft.setRotation(0);
  tft.setTextSize(1);
  tft.fillScreen(TFT_BLACK);
  tft.setCursor(0, 0, 2);
  tft.print("DIY");
  delay(2000);
  tft.fillScreen(TFT_BLACK);
  
  radio.setMonoReception();
  radio.setStereoNoiseCancellingOn();
  initScreen();
  showSplashScreen();

}
 
void loop() {
  
  for(int i;i<30;i++)
  {
     val = val + analogRead(analogPin); 
     delay(1);
  }
  
  val = val/30;
  frequencyInt = map(val, 2, 1014, 8700, 10700); //Analog value to frequency from 87.0 MHz to 107.00 MHz 
  float frequency = frequencyInt/100.0f;

  if(frequency - previousFrequency >= 0.1f || previousFrequency - frequency >= 0.1f)
  {
  //  tft.clrScr();
    radio.selectFrequency(frequency);
 //   printSignalStrength();
 //   printStereo();
    printFrequency(frequency);
    previousFrequency = frequency;    
  }
  
  tft.fillScreen(TFT_BLACK);
//  printSignalStrength();
//  printStereo();
  printFrequency(frequency);
  delay(50); 
  val = 0;  
}


void initScreen()
{
///  tft.InitLCD();
// tft.setFont(BigNumbers);
  tft.fillScreen(TFT_BLACK);
}

void showSplashScreen()
{
 // tft.drawBitmap(0, 0, splash, 84, 48);
///  tft.update();  
  delay(3000);
  tft.fillScreen(TFT_BLACK);
 /// tft.update();
}

void printFrequency(float frequency)
{
  String frequencyString = String(frequency,1);
  if(frequencyString.length() == 4)
  {
///    tft.setFont(BigNumbers);
    tft.print(frequencyString);
 //   tft.update();
  }
  else
  {
 //   tft.setFont(BigNumbers);
    tft.print(frequencyString);
  //  tft.update();
  }
}

ERROR:

Arduino: 1.8.19 (Windows 10), Board: "Arduino Uno"

text section exceeds available space in boardSketch uses 43662 bytes (135%) of program storage space. Maximum is 32256 bytes.

Global variables use 820 bytes (40%) of dynamic memory, leaving 1228 bytes for local variables. Maximum is 2048 bytes.
Sketch too big; see https://support.arduino.cc/hc/en-us/articles/360013825179 for tips on reducing it.
Error compiling for board Arduino Uno.


This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
2

Move your global variables inside functions, like void setup() or void loop() or another function where it/they are used. Gloal variables take memory through the life of the sketch. Functions only use that memory space during the function and release the memory after use, so the memory space is shared.

3

If you put them in loop they will take memory for the time if life of your sketch minus several millis for running setup. That does not help...

4

What are the external uint8_t []???
It seems those are pretty big.
Could you process those one at a time?
Or put those in PROGMEM?

Or move to ESP?

5

Why is everyone ignoring this?

@OP: your sketch is taking up 35% more memory than the Arduino has. Use a larger one like a Mega.

6

Program too big.

Use an Arduino with more Flash space.

7

big libraries

8

Get a bigger box.

Which MCU are you using that has an Analog pin on GPIO number 0?

9

I was not ignoring that...
...but indeed putting into PROGMEM will not help...
...but thinking about the external uint8_t things might help if there are ways to compress those files...

Now that I think of it... does OP realize that this sketch might be developed for some other board and that you need to select the appropriate board before compiling?

10

Yes, but the memory is shared, give it a try. This sketch also needs the library for TEA5767N.

11

See post #2

12

Making global variable local does NOTHING to reduce FLASH memory usage...

13

That post only refers to RAM usage, not the fact that OP has totally blown past the Flash size by a large margin.