oledcode.ino

#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 64 // 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);

#define NUMFLAKES 10 // Number of snowflakes in the animation example
#define LOGO_HEIGHT 16
#define LOGO_WIDTH 16
static const unsigned char PROGMEM logo_bmp[] =
    {B00000000, B11000000,
     B00000001, B11000000,
     B00000001, B11000000,
     B00000011, B11100000,
     B11110011, B11100000,
     B11111110, B11111000,
     B01111110, B11111111,
     B00110011, B10011111,
     B00011111, B11111100,
     B00001101, B01110000,
     B00011011, B10100000,
     B00111111, B11100000,
     B00111111, B11110000,
     B01111100, B11110000,
     B01110000, B01110000,
     B00000000, B00110000};

void testdrawline()
{
    int16_t i;
    display.clearDisplay(); // Clear display buffer
    for (i = 0; i < display.width(); i += 4)
    {
        display.drawLine(0, 0, i, display.height() - 1, SSD1306_WHITE);
        display.display(); // Update screen with each newly-drawn line
        delay(1);
    }
    for (i = 0; i < display.height(); i += 4)
    {
        display.drawLine(0, 0, display.width() - 1, i, SSD1306_WHITE);
        display.display();
        delay(1);
    }
    delay(250);
    display.clearDisplay();
    for (i = 0; i < display.width(); i += 4)
    {
        display.drawLine(0, display.height() - 1, i, 0, SSD1306_WHITE);
        display.display();
        delay(1);
    }
    for (i = display.height() - 1; i >= 0; i -= 4)
    {
        display.drawLine(0, display.height() - 1, display.width() - 1, i, SSD1306_WHITE);
        display.display();
        delay(1);
    }
    delay(250);
    display.clearDisplay();
    for (i = display.width() - 1; i >= 0; i -= 4)
    {
        display.drawLine(display.width() - 1, display.height() - 1, i, 0, SSD1306_WHITE);
        display.display();
        delay(1);
    }
    for (i = display.height() - 1; i >= 0; i -= 4)
    {
        display.drawLine(display.width() - 1, display.height() - 1, 0, i, SSD1306_WHITE);
        display.display();
        delay(1);
    }
    delay(250);
    display.clearDisplay();
    for (i = 0; i < display.height(); i += 4)
    {
        display.drawLine(display.width() - 1, 0, 0, i, SSD1306_WHITE);
        display.display();
        delay(1);
    }
    for (i = 0; i < display.width(); i += 4)
    {
        display.drawLine(display.width() - 1, 0, i, display.height() - 1, SSD1306_WHITE);
        display.display();
        delay(1);
    }
    delay(2000); // Pause for 2 seconds
}
void testdrawrect(void)
{
    display.clearDisplay();
    for (int16_t i = 0; i < display.height() / 2; i += 2)
    {
        display.drawRect(i, i, display.width() - 2 * i, display.height() - 2 * i, SSD1306_WHITE);
        display.display(); // Update screen with each newly-drawn rectangle
        delay(1);
    }
    delay(2000);
}
void testfillrect(void)
{
    display.clearDisplay();
    for (int16_t i = 0; i < display.height() / 2; i += 3)
    {
        // The INVERSE color is used so rectangles alternate white/black
        display.fillRect(i, i, display.width() - i * 2, display.height() - i * 2, SSD1306_INVERSE);
        display.display(); // Update screen with each newly-drawn rectangle
        delay(1);
    }
    delay(2000);
}
void testdrawcircle(void)
{
    display.clearDisplay();
    for (int16_t i = 0; i < max(display.width(), display.height()) / 2; i += 2)
    {
        display.drawCircle(display.width() / 2, display.height() / 2, i, SSD1306_WHITE);
        display.display();
        delay(1);
    }
    delay(2000);
}
void testfillcircle(void)
{
    display.clearDisplay();
    for (int16_t i = max(display.width(), display.height()) / 2; i > 0; i -= 3)
    {
        // The INVERSE color is used so circles alternate white/black
        display.fillCircle(display.width() / 2, display.height() / 2, i, SSD1306_INVERSE);
        display.display(); // Update screen with each newly-drawn circle
        delay(1);
    }
    delay(2000);
}
void testdrawroundrect(void)
{
    display.clearDisplay();
    for (int16_t i = 0; i < display.height() / 2 - 2; i += 2)
    {
        display.drawRoundRect(i, i, display.width() - 2 * i, display.height() - 2 * i,
                              display.height() / 4, SSD1306_WHITE);
        display.display();
        delay(1);
    }
    delay(2000);
}
void testfillroundrect(void)
{
    display.clearDisplay();
    for (int16_t i = 0; i < display.height() / 2 - 2; i += 2)
    {
        // The INVERSE color is used so round-rects alternate white/black
        display.fillRoundRect(i, i, display.width() - 2 * i, display.height() - 2 * i,
                              display.height() / 4, SSD1306_INVERSE);
        display.display();
        delay(1);
    }
    delay(2000);
}
void testdrawtriangle(void)
{
    display.clearDisplay();
    for (int16_t i = 0; i < max(display.width(), display.height()) / 2; i += 5)
    {
        display.drawTriangle(
            display.width() / 2, display.height() / 2 - i,
            display.width() / 2 - i, display.height() / 2 + i,
            display.width() / 2 + i, display.height() / 2 + i, SSD1306_WHITE);
        display.display();
        delay(1);
    }
    delay(2000);
}
void testfilltriangle(void)
{
    display.clearDisplay();
    for (int16_t i = max(display.width(), display.height()) / 2; i > 0; i -= 5)
    {
        // The INVERSE color is used so triangles alternate white/black
        display.fillTriangle(
            display.width() / 2, display.height() / 2 - i,
            display.width() / 2 - i, display.height() / 2 + i,
            display.width() / 2 + i, display.height() / 2 + i, SSD1306_INVERSE);
        display.display();
        delay(1);
    }
    delay(2000);
}
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);
}
void testscrolltext(void)
{
    display.clearDisplay();
    display.setTextSize(2); // Draw 2X-scale text
    display.setTextColor(SSD1306_WHITE);
    display.setCursor(10, 0);
    display.println(F("scroll"));
    display.display(); // Show initial text
    delay(100);
    // Scroll in various directions, pausing in-between:
    display.startscrollright(0x00, 0x0F);
    delay(2000);
    display.stopscroll();
    delay(1000);
    display.startscrollleft(0x00, 0x0F);
    delay(2000);
    display.stopscroll();
    delay(1000);
    display.startscrolldiagright(0x00, 0x07);
    delay(2000);
    display.startscrolldiagleft(0x00, 0x07);
    delay(2000);
    display.stopscroll();
}

void setup()
{
    Serial.begin(9600);
    // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
    if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C))
    { // Address 0x3C for 128x64
        Serial.println(F("SSD1306 allocation failed"));
        for (;;)
            ; // Don't proceed, loop forever
    }
    // Show initial display buffer contents on the screen --
    // the library initializes this with an Adafruit splash screen.
    display.display();
    delay(2000); // Pause for 2 seconds
    // Clear the buffer
    display.clearDisplay();
    // Draw a single pixel in white
    display.drawPixel(10, 10, SSD1306_WHITE);
    // Show the display buffer on the screen. You MUST call display() after
    // drawing commands to make them visible on screen!
    display.display();
    delay(2000);
    // display.display()
    // Invert and restore display, pausing in-between
    display.invertDisplay(true);
    delay(1000);
    display.invertDisplay(false);
    delay(1000);

    // I've commented out the line below as testanimate isn't defined anywhere in this code, so there isnt a function to call.
//    testanimate(logo_bmp, LOGO_WIDTH, LOGO_HEIGHT); // Animate bitmaps
}

// there is nothing in the main program loop - this is odd, normally this is where the main body of code should live
void loop()
{
}