hacks/arduino/i2c-lcd/i2c-lcd.ino

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Arduino
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2022-01-09 13:40:55 +00:00
#define SSD1306_NO_SPLASH
// OLED display width and height, in pixels
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 32
#define OLED_RESET -1
// i2c address for oled
///< See datasheet for Address; 0x3D for 128x64, 0x3C for 128x32
#define SCREEN_ADDRESS 0x3C
#include <Adafruit_SSD1306.h>
#include <splash.h>
#include <Adafruit_GrayOLED.h>
#include <gfxfont.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SPITFT.h>
#include <Adafruit_SPITFT_Macros.h>
#include <LiquidCrystal_I2C.h>
// set the LCD address to 0x27 for a 16 chars and 2 line display
LiquidCrystal_I2C lcd(0x27, 16, 2);
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
void setup() {
lcd.init();
lcd.backlight();
lcd.setCursor(0, 0);
lcd.print("0x123456789abcde");
lcd.setCursor(0, 1);
lcd.print("fghijklmnopqrstu");
Serial.begin(115200);
// SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
if (!display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
Serial.println(F("SSD1306 allocation failed"));
for (;;); // Don't proceed, loop forever
}
display.display();
delay(50); // Pause for 2 seconds
// Clear the buffer
display.clearDisplay();
testdrawstyles(); // Draw 'stylized' characters
panic();
//
// // Invert and restore display, pausing in-between
// display.invertDisplay(true);
// delay(1000);
// display.invertDisplay(false);
// delay(1000);
}
void panic() {
for (;;) {
display.invertDisplay(true);
delay(1000);
}
}
void loop()
{
}
#define LINE_HEIGHT_PX 9
void testdrawstyles(void) {
display.clearDisplay();
display.setTextSize(1); // Normal 1:1 pixel scale
display.setTextColor(SSD1306_WHITE); // Draw white text
display.setCursor(0, 0 * LINE_HEIGHT_PX);
display.println(F("123456789112345678921"));
display.setCursor(0, 1 * LINE_HEIGHT_PX);
display.println(F("234567893123456789412"));
display.setCursor(0, 2 * LINE_HEIGHT_PX);
display.println(F("345678951234567896123"));
display.display();
display.startscrollright(0x00, 0xFF);
/*
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(1.5); // Draw 2X-scale text
display.setTextColor(SSD1306_WHITE);
display.setCursor(10, 0);
display.println(F("1337CAFE"));
display.display(); // Show initial text
delay(70);
// 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);
}
*/