OLED Display Problem

Projects Programming
1

I am working on a project with a oled display and all I get on the display is the adafruit logo and white dots. Any help is great!

#include "max6675.h"
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#define SCREEN_WIDTH 128 
#define SCREEN_HEIGHT 32 
#define OLED_RESET     4 
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
int ktcSO = 8;
int ktcCS = 9;
int ktcCLK = 10;
MAX6675 ktc(ktcCLK, ktcCS, ktcSO);
void setup() {
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  display.clearDisplay();
  delay(500);
}
void loop() {
  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.setCursor(0, 0);
  display.print("F=");
  display.println(ktc.readFahrenheit());     
  delay(500);
}
2

You should probably try on the appropriate Adafruit forum. Their tech support folks hang out there.

3

Just a thought, that's a pretty small display try..

display.setCursor(0, 10);
display.setTextSize(1);

-jim lee

4

you forgot

display.display();

just before delay(500);

loop:
  my_display.clearDisplay();
  my_display.setTextSize(1);   // text size = 1
  my_display.setTextColor(WHITE, BLACK);  // set text color to white and black background
  my_display.setCursor(1, 1);        
  my_display.print(msg);
  my_display.display();