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92 lines
3.4 KiB
C++
92 lines
3.4 KiB
C++
/**
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The MIT License (MIT)
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Copyright (c) 2022 by Stefan Seyfried
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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*/
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// Include the correct display library
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// For a connection via I2C using Wire include
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#include <Wire.h> // Only needed for Arduino 1.6.5 and earlier
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#include "SSD1306Wire.h" // legacy include: `#include "SSD1306.h"`
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// or #include "SH1106Wire.h", legacy include: `#include "SH1106.h"`
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// For a connection via I2C using brzo_i2c (must be installed) include
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// #include <brzo_i2c.h> // Only needed for Arduino 1.6.5 and earlier
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// #include "SSD1306Brzo.h"
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// #include "SH1106Brzo.h"
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// For a connection via SPI include
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// #include <SPI.h> // Only needed for Arduino 1.6.5 and earlier
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// #include "SSD1306Spi.h"
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// #include "SH1106Spi.h"
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// Use the corresponding display class:
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// Initialize the OLED display using SPI
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// D5 -> CLK
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// D7 -> MOSI (DOUT)
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// D0 -> RES
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// D2 -> DC
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// D8 -> CS
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// SSD1306Spi display(D0, D2, D8);
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// or
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// SH1106Spi display(D0, D2);
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// Initialize the OLED display using brzo_i2c
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// D3 -> SDA
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// D5 -> SCL
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// SSD1306Brzo display(0x3c, D3, D5);
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// or
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// SH1106Brzo display(0x3c, D3, D5);
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// Initialize the OLED display using Wire library
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SSD1306Wire display(0x3c, SDA, SCL); // ADDRESS, SDA, SCL - SDA and SCL usually populate automatically based on your board's pins_arduino.h e.g. https://github.com/esp8266/Arduino/blob/master/variants/nodemcu/pins_arduino.h
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// SH1106Wire display(0x3c, SDA, SCL);
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// UTF-8 sprinkled within, because it tests special conditions in the char-counting code
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const String loremipsum = "Lorem ipsum dolor sit ämet, "
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"consetetur sadipscing elitr, sed diam nonümy eirmöd "
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"tempor invidunt ut labore et dolore mägnä aliquyam erat, "
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"sed diam voluptua. At vero eos et accusam et justo duo "
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"dolores et ea rebum. Stet clita kasd gubergren, no sea "
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"takimata sanctus est Lorem ipsum dolor sit amet. "
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"äöü-ÄÖÜ/߀é/çØ.";
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void setup() {
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display.init();
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display.setContrast(255);
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display.setTextAlignment(TEXT_ALIGN_LEFT);
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display.setFont(ArialMT_Plain_16);
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display.display();
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}
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void loop() {
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static uint16_t start_at = 0;
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display.clear();
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uint16_t firstline = display.drawStringMaxWidth(0, 0, 128, loremipsum.substring(start_at));
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display.display();
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if (firstline != 0) {
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start_at += firstline;
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} else {
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start_at = 0;
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delay(1000); // additional pause before going back to start
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}
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delay(1000);
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}
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