Hi,
i have a simple question. I want to use a display (one of those 128x96 OLEDs with an SH1106 controller) with my Arduino Uno. I'm using the Adafruit Librarys. I got it working so far, but to integrate it into my project i need to write to the display from a function. I created 2 functions.
- Initialize the Display
- Clear the Display and write something new
The first function creates a reference to the display with:
Adafruit_SH1106 display(OLED_RESET);
So i can do stuff like (in the first function):
display.println("Hello, world!");
But i want to use the second function to write to the display. Obviously i need to make display global, so i put Adafruit_SH1106 display; at the top of my sketch, but that didn't do the trick.
Sooo, the Question: How do i make the display reference global?
I'm fluent in Java, but new to C/C++... so this might be a dumb question...
cheers!
Function One(initialize):
void initDisplay(){
Adafruit_SH1106 display(OLED_RESET);
display.begin(SH1106_SWITCHCAPVCC, 0x3C);
display.fillScreen(WHITE);
display.display();
delay(500);
display.clearDisplay();
display.display();
display.setRotation(90);
display.setTextSize(1.2);
display.setTextColor(WHITE);
}
function Two(print):
void printDisp(){
display.clearDisplay();
display.setCursor(0,0);
display.println("Hello, world!");
display.display();
}