Serial does not name a type error on compiling

Projects Programming
1

Im trying to compile a script and i get the error "serial does not name a type" and the line Serial.begin(9600); gets highlighted. The script is one for displaying to an Oled which i butchered from an example script because i was just wanting the bit in the script which out puts a value (which I'm taking from a GPS unit)

The script is from the Makerhawk Oled example library.

Cheers

2

Does it say "serial" or "Serial"?

Post your code.

Post the exact error message.

3

I've so butchered the code I don't know what the original was when I first posted. what's left is the following.

Which of course won't compile. It gets the error message "expected initialiser before void"

void setup()
{
#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
#define OLED_RESET     4 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);



  

  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
{display.begin(SSD1306_SWITCHCAPVCC, 0x3C); { // Address 0x3C for 128x32
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }

void loop()


 
void testdrawchar(void) {
  display.clearDisplay();

  display.setTextSize(1);      // Normal 1:1 pixel scale
  display.setTextColor(SSD1306_WHITE); // Draw white text
  display.setCursor(0, 0);     // Start at top-left corner
  display.cp437(true);         // Use full 256 char 'Code Page 437' font

  // Not all the characters will fit on the display. This is normal.
  // Library will draw what it can and the rest will be clipped.
  for(int16_t i=0; i<256; i++) {
    if(i == '\n') display.write(' ');
    else          display.write(i);
  }

  display.display();
  delay(2000);
}

void testdrawstyles(void) {
  display.clearDisplay();

  display.setTextSize(1);             // Normal 1:1 pixel scale
  display.setTextColor(SSD1306_WHITE);        // Draw white text
  display.setCursor(0,0);             // Start at top-left corner
  display.println(F("Hello, world!"));

  display.setTextColor(SSD1306_BLACK, SSD1306_WHITE); // Draw 'inverse' text
  display.println(3.141592);

  display.setTextSize(2);             // Draw 2X-scale text
  display.setTextColor(SSD1306_WHITE);
  display.print(F("0x")); display.println(0xDEADBEEF, HEX);

  display.display();
  delay(2000);
}


      }
    }
  }
}
4

Again, post the exact error message.
All of it.

Unusual to put your includes inside a function, but, what the heck.

And please, use the auto format tool before you post code.

5

I cant re run the compiling of the script because i don't have my first attempt at editing out all the stuff from the old example script. This is because i think the script became autosave as i messed with it further to try and fix it so my original question is redundant now. Sorry.

My latest attempt to extract a hello world script from the example script is the following.

#include <SPI.h>
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 32 // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
#define OLED_RESET     4 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

display.clearDisplay();

display.setTextSize(1);             // Normal 1:1 pixel scale
display.setTextColor(SSD1306_WHITE);        // Draw white text
display.setCursor(0, 0);            // Start at top-left corner
display.println(F("Hello, world!"));

display.setTextColor(SSD1306_BLACK, SSD1306_WHITE); // Draw 'inverse' text
display.println(3.141592);

display.setTextSize(2);             // Draw 2X-scale text
display.setTextColor(SSD1306_WHITE);
display.print(F("0x")); display.println(0xDEADBEEF, HEX);

display.display();
delay(2000);
}


}

This, of course does not compile either getting an error "display does not name a type" and the line "display.display();" is highlighted as the problem line.

I think I'm just down a rabbit hole of endlessly trying to correct something i don't understand.

All I'm trying to do is get some code I can use to display some output from some values I get from a GPS unit.

6

What part of "post the exact error message" did you find so hard to understand?

7

TheMemberFormerlyKnownAsAWOL:
What part of "post the exact error message" did you find so hard to understand?

I don't know what the original error message said exactly, for the reasons i explained.