Buen dia , estoy utilizando un Display OLED SSD127 128x128. I2C.
Utilizo la Librería u8g2
ref. Universal 8bit Graphics Library (GitHub - olikraus/u8g2: U8glib library for monochrome displays, version 2)
y cargue el ejemplo que trae dentro de ella. Weather.
sobre Arduino UNO.
Pero como se ve en la imagen NO logro ver toda la imagen.
Dejo el código utilizado si alguno tiene alguna pista de porque no se ve completo.
Gracias
/*
Weather.ino
Demonstrates:
- Weather icons from open-iconic set.
- Text scrolling.
- Partial screen update
This example requires display height >= 64.
Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)
Copyright (c) 2016, olikraus@gmail.com
All rights reserved.
Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice, this list
of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice, this
list of conditions and the following disclaimer in the documentation and/or other
materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <Arduino.h>
#include <U8g2lib.h>
#ifdef U8X8_HAVE_HW_SPI
#include <SPI.h>
#endif
#ifdef U8X8_HAVE_HW_I2C
#include <Wire.h>
#endif
/*
U8g2lib Example Overview:
Frame Buffer Examples: clearBuffer/sendBuffer. Fast, but may not work with all Arduino boards because of RAM consumption
Page Buffer Examples: firstPage/nextPage. Less RAM usage, should work with all Arduino boards.
U8x8 Text Only Example: No RAM usage, direct communication with display controller. No graphics, 8x8 Text only.
This is a page buffer example.
*/
// Please UNCOMMENT one of the contructor lines below
// U8g2 Contructor List (Picture Loop Page Buffer)
// The complete list is available here: https://github.com/olikraus/u8g2/wiki/u8g2setupcpp
// Please update the pin numbers according to your setup. Use U8X8_PIN_NONE if the reset pin is not connected
//U8G2_SSD1327_SEEED_96X96_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE); // Seeedstudio Grove OLED 96x96
//U8G2_SSD1327_SEEED_96X96_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); // Seeedstudio Grove OLED 96x96
//U8G2_SSD1327_EA_W128128_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ 5, /* data=*/ 4, /* reset=*/ U8X8_PIN_NONE);
// Funciona parcial.
U8G2_SSD1327_EA_W128128_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE);
//U8G2_SSD1327_EA_W128128_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); /* Uno: A4=SDA, A5=SCL, add "u8g2.setBusClock(400000);" into setup() for speedup if possible */
//U8G2_SSD1327_MIDAS_128X128_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); /* Uno: A4=SDA, A5=SCL, add "u8g2.setBusClock(400000);" into setup() for speedup if possible */
// End of constructor list
#define SUN 0
#define SUN_CLOUD 1
#define CLOUD 2
#define RAIN 3
#define THUNDER 4
void drawWeatherSymbol(u8g2_uint_t x, u8g2_uint_t y, uint8_t symbol)
{
// fonts used:
// u8g2_font_open_iconic_embedded_6x_t
// u8g2_font_open_iconic_weather_6x_t
// encoding values, see: https://github.com/olikraus/u8g2/wiki/fntgrpiconic
switch(symbol)
{
case SUN:
u8g2.setFont(u8g2_font_open_iconic_weather_6x_t);
u8g2.drawGlyph(x, y, 69);
break;
case SUN_CLOUD:
u8g2.setFont(u8g2_font_open_iconic_weather_6x_t);
u8g2.drawGlyph(x, y, 65);
break;
case CLOUD:
u8g2.setFont(u8g2_font_open_iconic_weather_6x_t);
u8g2.drawGlyph(x, y, 64);
break;
case RAIN:
u8g2.setFont(u8g2_font_open_iconic_weather_6x_t);
u8g2.drawGlyph(x, y, 67);
break;
case THUNDER:
u8g2.setFont(u8g2_font_open_iconic_embedded_6x_t);
u8g2.drawGlyph(x, y, 67);
break;
}
}
void drawWeather(uint8_t symbol, int degree)
{
drawWeatherSymbol(0, 48, symbol);
u8g2.setFont(u8g2_font_logisoso32_tf);
u8g2.setCursor(48+3, 42);
u8g2.print(degree);
u8g2.print("°C"); // requires enableUTF8Print()
}
/*
Draw a string with specified pixel offset.
The offset can be negative.
Limitation: The monochrome font with 8 pixel per glyph
*/
void drawScrollString(int16_t offset, const char *s)
{
static char buf[36]; // 36 should for screen with up to 256 pixel width
size_t len;
size_t char_offset = 0;
u8g2_uint_t dx = 0;
size_t visible = 0;
u8g2.setDrawColor(0); // clear the scrolling area
u8g2.drawBox(0, 49, u8g2.getDisplayWidth()-1, u8g2.getDisplayHeight()-1);
u8g2.setDrawColor(1); // set the color for the text
len = strlen(s);
if ( offset < 0 )
{
char_offset = (-offset)/8;
dx = offset + char_offset*8;
if ( char_offset >= u8g2.getDisplayWidth()/8 )
return;
visible = u8g2.getDisplayWidth()/8-char_offset+1;
strncpy(buf, s, visible);
buf[visible] = '\0';
u8g2.setFont(u8g2_font_8x13_mf);
u8g2.drawStr(char_offset*8-dx, 62, buf);
}
else
{
char_offset = offset / 8;
if ( char_offset >= len )
return; // nothing visible
dx = offset - char_offset*8;
visible = len - char_offset;
if ( visible > u8g2.getDisplayWidth()/8+1 )
visible = u8g2.getDisplayWidth()/8+1;
strncpy(buf, s+char_offset, visible);
buf[visible] = '\0';
u8g2.setFont(u8g2_font_8x13_mf);
u8g2.drawStr(-dx, 62, buf);
}
}
void draw(const char *s, uint8_t symbol, int degree)
{
int16_t offset = -(int16_t)u8g2.getDisplayWidth();
int16_t len = strlen(s);
u8g2.clearBuffer(); // clear the internal memory
drawWeather(symbol, degree); // draw the icon and degree only once
for(;;) // then do the scrolling
{
drawScrollString(offset, s); // no clearBuffer required, screen will be partially cleared here
u8g2.sendBuffer(); // transfer internal memory to the display
delay(20);
offset+=2;
if ( offset > len*8+1 )
break;
}
}
void setup(void) {
u8g2.begin();
u8g2.enableUTF8Print();
u8g2.setBusClock(400000);
}
void loop(void) {
draw("What a beautiful day!", SUN, 27);
draw("The sun's come out!", SUN_CLOUD, 19);
draw("It's raining cats and dogs.", RAIN, 8);
draw("That sounds like thunder.", THUNDER, 12);
draw("It's stopped raining", CLOUD, 15);
}
