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- /**************************************************************************
- This is an example for our Monochrome OLEDs based on SSD1306 drivers
-
- Pick one up today in the adafruit shop!
- ------> http://www.adafruit.com/category/63_98
-
- This example is for a 128x32 pixel display using I2C to communicate
- 3 pins are required to interface (two I2C and one reset).
-
- Adafruit invests time and resources providing this open
- source code, please support Adafruit and open-source
- hardware by purchasing products from Adafruit!
-
- Written by Limor Fried/Ladyada for Adafruit Industries,
- with contributions from the open source community.
- BSD license, check license.txt for more information
- All text above, and the splash screen below must be
- included in any redistribution.
- **************************************************************************/
-
- #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);
-
- #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 setup() {
- Serial.begin(9600);
-
- // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
- if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3C for 128x32
- 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() is NOT necessary after every single drawing command,
- // unless that's what you want...rather, you can batch up a bunch of
- // drawing operations and then update the screen all at once by calling
- // display.display(). These examples demonstrate both approaches...
-
- /*testdrawline(); // Draw many lines
-
- testdrawrect(); // Draw rectangles (outlines)
-
- testfillrect(); // Draw rectangles (filled)
-
- testdrawcircle(); // Draw circles (outlines)
-
- testfillcircle(); // Draw circles (filled)
-
- testdrawroundrect(); // Draw rounded rectangles (outlines)
-
- testfillroundrect(); // Draw rounded rectangles (filled)
-
- testdrawtriangle(); // Draw triangles (outlines)
-
- testfilltriangle(); // Draw triangles (filled)
-
- testdrawchar(); // Draw characters of the default font
-
- testdrawstyles(); // Draw 'stylized' characters
-
- testscrolltext(); // Draw scrolling text
-
- testdrawbitmap(); // Draw a small bitmap image
-
- // Invert and restore display, pausing in-between
- display.invertDisplay(true);
- delay(1000);
- display.invertDisplay(false);
- delay(1000);*/
-
- //testanimate(logo_bmp, LOGO_WIDTH, LOGO_HEIGHT); // Animate bitmaps
- }
-
- void loop() {
-
- testdrawchar2(); // Draw scrolling text
- delay(2000);
- while(1){
- display.clearDisplay();
- testdrawchar3(); // Draw scrolling text
- }
- }
-
-
- double GetTemp(void)
- {
- unsigned int wADC;
- double t;
-
- // The internal temperature has to be used
- // with the internal reference of 1.1V.
- // Channel 8 can not be selected with
- // the analogRead function yet.
-
- // Set the internal reference and mux.
- ADMUX = (_BV(REFS1) | _BV(REFS0) | _BV(MUX3));
- ADCSRA |= _BV(ADEN); // enable the ADC
-
- delay(20); // wait for voltages to become stable.
-
- ADCSRA |= _BV(ADSC); // Start the ADC
-
- // Detect end-of-conversion
- while (bit_is_set(ADCSRA,ADSC));
-
- // Reading register "ADCW" takes care of how to read ADCL and ADCH.
- wADC = ADCW;
-
- // The offset of 324.31 could be wrong. It is just an indication.
- t = (wADC - 324.31 ) / 1.22;
-
- // The returned temperature is in degrees Celsius.
- return (t);
- }
-
-
- 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 testdrawchar2(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
-
- display.println(F(" Steak Electronics"));
- display.display();
- delay(2000);
- }
- void testdrawchar3(void) {
- display.clearDisplay();
-
- display.setTextSize(1); // Normal 1:1 pixel scale
- display.setTextColor(SSD1306_WHITE); // Draw white text
- display.setCursor(0, 10); // Start at top-left corner
- display.cp437(true); // Use full 256 char 'Code Page 437' font
-
- display.print("Temp: ");
- display.println(GetTemp(),1);
- display.display();
- delay(200);
-
- }
-
-
- 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();
- delay(1000);
- }
- void testscrolltext2(void) {
- display.clearDisplay();
-
- display.setTextSize(2); // Draw 2X-scale text
- display.setTextColor(SSD1306_WHITE);
- display.setCursor(10, 0);
- display.println(F("5318008"));
- 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();
- delay(1000);
- }
-
-
- void testdrawbitmap(void) {
- display.clearDisplay();
-
- display.drawBitmap(
- (display.width() - LOGO_WIDTH ) / 2,
- (display.height() - LOGO_HEIGHT) / 2,
- logo_bmp, LOGO_WIDTH, LOGO_HEIGHT, 1);
- display.display();
- delay(1000);
- }
-
- #define XPOS 0 // Indexes into the 'icons' array in function below
- #define YPOS 1
- #define DELTAY 2
-
- void testanimate(const uint8_t *bitmap, uint8_t w, uint8_t h) {
- int8_t f, icons[NUMFLAKES][3];
-
- // Initialize 'snowflake' positions
- for(f=0; f< NUMFLAKES; f++) {
- icons[f][XPOS] = random(1 - LOGO_WIDTH, display.width());
- icons[f][YPOS] = -LOGO_HEIGHT;
- icons[f][DELTAY] = random(1, 6);
- Serial.print(F("x: "));
- Serial.print(icons[f][XPOS], DEC);
- Serial.print(F(" y: "));
- Serial.print(icons[f][YPOS], DEC);
- Serial.print(F(" dy: "));
- Serial.println(icons[f][DELTAY], DEC);
- }
-
- for(;;) { // Loop forever...
- display.clearDisplay(); // Clear the display buffer
-
- // Draw each snowflake:
- for(f=0; f< NUMFLAKES; f++) {
- display.drawBitmap(icons[f][XPOS], icons[f][YPOS], bitmap, w, h, SSD1306_WHITE);
- }
-
- display.display(); // Show the display buffer on the screen
- delay(200); // Pause for 1/10 second
-
- // Then update coordinates of each flake...
- for(f=0; f< NUMFLAKES; f++) {
- icons[f][YPOS] += icons[f][DELTAY];
- // If snowflake is off the bottom of the screen...
- if (icons[f][YPOS] >= display.height()) {
- // Reinitialize to a random position, just off the top
- icons[f][XPOS] = random(1 - LOGO_WIDTH, display.width());
- icons[f][YPOS] = -LOGO_HEIGHT;
- icons[f][DELTAY] = random(1, 6);
- }
- }
- }
- }
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