ESP8266 LoadfromSD with ST7920

[hicksan]

I am trying to run the loadFromSD demo sketch with an ESP8266 connected to as ST7920 LCD and an Sd card.

I have the display on pins D5 (CLK), D7 (MOSI) and D10 (CS) with the following constructor: U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, D5, D7, D10, U8X8_PIN_NONE);

I ran your Graphics Test sketch with just the ST7920 on the ESP8266 and it ran perfectly with this constructor.

I have the SD card connected to pins D11 (MOSI) , D12 (MISO), D13 (CLK) and D9 (CS). I call it with SD.begin(D9); as per your demo sketch. I am assuming it will go to these pins as the SPI hardware defaults, as per an UNO.

The ST7920 and SD card are on separate SPI busses because, as I already discovered when I tried this with the Mega, the SD card reader is wired wrongly and cannot share an SPI bus with any other device. This setup

worked fine with the Mega, but I am now trying it on an ESP8266 for other reasons.

The problem is it won't compile. I get loads of error messages relating to "multiple SD.h libraries" and stuff about SdFat that I am not even using, relating to a library in the area: ...\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\libraries\SDFS\src/SDFS.h

• a library that is not even mentioned in the sketch!

Any idea what I am doing or haven't done that might be causing this? The sketch in question is basically your demo sketch since I am just testing the hardware compatibility.

I attach the file below:

/*

  LoadFromSD.ino

  Demonstrate how to read a XBM file from SD card.
  This example will write a XBM image to SD card as a preparation during setup ("u8g2.bin").
  The written file content will be displayed.

  There is also an external conversion tool, which generates the expected binary from a PNG file:
    https://github.com/olikraus/u8g2/tree/master/tools/png2bin

  Remember to adjust SD.begin(SD_CS) argument.

  Universal 8bit Graphics Library (https://github.com/olikraus/u8g2/)

  Copyright (c) 2019, 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>
//#include <SPI.h>
#include <SD.h>

//#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_NULL u8g2(U8G2_R0);  // null device, a 8x8 pixel display which does nothing
//U8G2_SSD1306_128X64_NONAME_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1306_128X64_NONAME_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 12, /* dc=*/ 4, /* reset=*/ 6); // Arduboy (Production, Kickstarter Edition)
//U8G2_SSD1306_128X64_NONAME_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1306_128X64_NONAME_1_3W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* reset=*/ 8);
//U8G2_SSD1306_128X64_NONAME_1_3W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* reset=*/ 8);
//U8G2_SSD1306_128X64_NONAME_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
//U8G2_SSD1306_128X64_ALT0_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);   // same as the NONAME variant, but may solve the "every 2nd line skipped" problem
//U8G2_SSD1306_128X64_NONAME_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* reset=*/ 8);
//U8G2_SSD1306_128X64_NONAME_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE);   // All Boards without Reset of the Display
//U8G2_SSD1306_128X64_NONAME_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ 16, /* data=*/ 17, /* reset=*/ U8X8_PIN_NONE);   // ESP32 Thing, pure SW emulated I2C
//U8G2_SSD1306_128X64_NONAME_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE, /* clock=*/ 16, /* data=*/ 17);   // ESP32 Thing, HW I2C with pin remapping
//U8G2_SSD1306_128X64_NONAME_1_6800 u8g2(U8G2_R0, 13, 11, 2, 3, 4, 5, 6, A4, /*enable=*/ 7, /*cs=*/ 10, /*dc=*/ 9, /*reset=*/ 8);
//U8G2_SSD1306_128X64_NONAME_1_8080 u8g2(U8G2_R0, 13, 11, 2, 3, 4, 5, 6, A4, /*enable=*/ 7, /*cs=*/ 10, /*dc=*/ 9, /*reset=*/ 8);
//U8G2_SSD1306_128X64_VCOMH0_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // same as the NONAME variant, but maximizes setContrast() range
//U8G2_SSD1306_128X64_ALT0_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);   // same as the NONAME variant, but may solve the "every 2nd line skipped" problem
//U8G2_SH1106_128X64_NONAME_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SH1106_128X64_NONAME_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
//U8G2_SH1106_128X64_VCOMH0_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);      // same as the NONAME variant, but maximizes setContrast() range
//U8G2_SH1106_128X64_WINSTAR_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);     // same as the NONAME variant, but uses updated SH1106 init sequence
//U8G2_SH1106_128X32_VISIONOX_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); 
//U8G2_SH1106_128X32_VISIONOX_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SH1106_72X40_WISE_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SH1107_64X128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SH1107_128X128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SH1107_128X128_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ 8);
//U8G2_SH1107_PIMORONI_128X128_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ 8);
//U8G2_SH1107_SEEED_128X128_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE);
//U8G2_SH1107_SEEED_128X128_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
//U8G2_SH1107_SEEED_96X96_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SH1108_160X160_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SH1122_256X64_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);             // Enable U8G2_16BIT in u8g2.h
//U8G2_SSD1306_128X32_UNIVISION_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ 21, /* data=*/ 20, /* reset=*/ U8X8_PIN_NONE);   // Adafruit Feather M0 Basic Proto + FeatherWing OLED
//U8G2_SSD1306_128X32_UNIVISION_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ U8X8_PIN_NONE);   // Adafruit Feather ESP8266/32u4 Boards + FeatherWing OLED
//U8G2_SSD1306_128X32_UNIVISION_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);   // Adafruit ESP8266/32u4/ARM Boards + FeatherWing OLED
//U8G2_SSD1306_128X32_UNIVISION_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE, /* clock=*/ SCL, /* data=*/ SDA);   // pin remapping with ESP8266 HW I2C
//U8G2_SSD1306_128X32_WINSTAR_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE, /* clock=*/ SCL, /* data=*/ SDA);   // pin remapping with ESP8266 HW I2C
//U8G2_SSD1306_64X48_ER_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);   // EastRising 0.66" OLED breakout board, Uno: A4=SDA, A5=SCL, 5V powered
//U8G2_SSD1306_48X64_WINSTAR_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);   
//U8G2_SSD1306_64X32_NONAME_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
//U8G2_SSD1306_64X32_1F_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
//U8G2_SSD1306_96X16_ER_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);   // EastRising 0.69" OLED 
//U8G2_SSD1306_72X40_ER_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);   // EastRising 0.42" OLED 
//U8G2_SSD1322_NHD_256X64_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Enable U8G2_16BIT in u8g2.h
//U8G2_SSD1322_NHD_256X64_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);    // Enable U8G2_16BIT in u8g2.h
//U8G2_SSD1322_NHD_128X64_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1322_NHD_128X64_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1325_NHD_128X64_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1325_NHD_128X64_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD0323_OS128064_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD0323_OS128064_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1326_ER_256X32_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);         // experimental driver for ER-OLED018-1
//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_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1327_EA_W128128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1327_EA_W128128_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ 5, /* data=*/ 4, /* 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_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1327_MIDAS_128X128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//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 */
//U8G2_SSD1327_WS_128X128_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1327_WS_128X128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1327_VISIONOX_128X96_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1327_VISIONOX_128X96_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1329_128X96_NONAME_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1329_128X96_NONAME_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1305_128X32_NONAME_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1305_128X32_NONAME_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1305_128X32_ADAFRUIT_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1305_128X32_ADAFRUIT_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1305_128X64_ADAFRUIT_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1305_128X64_ADAFRUIT_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1305_128X64_RAYSTAR_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1305_128X64_RAYSTAR_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_SSD1309_128X64_NONAME0_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  
//U8G2_SSD1309_128X64_NONAME0_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  
//U8G2_SSD1309_128X64_NONAME2_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  
//U8G2_SSD1309_128X64_NONAME2_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  
//U8G2_SSD1316_128X32_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  
//U8G2_SSD1316_128X32_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);    
//U8G2_SSD1317_96X96_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // not tested, not confirmed
//U8G2_SSD1317_96X96_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);     // not tested, not confirmed
//U8G2_SSD1318_128X96_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  
//U8G2_SSD1318_128X96_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);    
//U8G2_LD7032_60X32_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 11, /* data=*/ 12, /* cs=*/ 9, /* dc=*/ 10, /* reset=*/ 8);   // SW SPI Nano Board
//U8G2_LD7032_60X32_1_4W_SW_I2C u8g2(U8G2_R0, /* clock=*/ 11, /* data=*/ 12, /* reset=*/ U8X8_PIN_NONE);    // NOT TESTED!
//U8G2_LD7032_60X32_ALT_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 11, /* data=*/ 12, /* cs=*/ 9, /* dc=*/ 10, /* reset=*/ 8);   // SW SPI Nano Board
//U8G2_LD7032_60X32_ALT_1_4W_SW_I2C u8g2(U8G2_R0, /* clock=*/ 11, /* data=*/ 12, /* reset=*/ U8X8_PIN_NONE);    // NOT TESTED!
//U8G2_UC1701_EA_DOGS102_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_UC1701_EA_DOGS102_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_PCD8544_84X48_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // Nokia 5110 Display
//U8G2_PCD8544_84X48_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);                     // Nokia 5110 Display
//U8G2_PCF8812_96X65_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // Could be also PCF8814
//U8G2_PCF8812_96X65_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);                     // Could be also PCF8814
//U8G2_HX1230_96X68_1_3W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* reset=*/ 8);
//U8G2_HX1230_96X68_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_KS0108_128X64_1 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*dc=*/ 17, /*cs0=*/ 14, /*cs1=*/ 15, /*cs2=*/ U8X8_PIN_NONE, /* reset=*/  U8X8_PIN_NONE);   // Set R/W to low!
//U8G2_KS0108_ERM19264_1 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*dc=*/ 17, /*cs0=*/ 14, /*cs1=*/ 15, /*cs2=*/ 16, /* reset=*/  U8X8_PIN_NONE);    // Set R/W to low!
//U8G2_ST7920_192X32_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ U8X8_PIN_NONE, /*dc=*/ 17, /*reset=*/ U8X8_PIN_NONE);
//U8G2_ST7920_192X32_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
//U8G2_ST7920_128X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18 /* A4 */, /*cs=*/ U8X8_PIN_NONE, /*dc/rs=*/ 17 /* A3 */, /*reset=*/ 15 /* A1 */);    // Remember to set R/W to 0 
//U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 18 /* A4 */ , /* data=*/ 16 /* A2 */, /* CS=*/ 17 /* A3 */, /* reset=*/ U8X8_PIN_NONE);
//U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* CS=*/ 10, /* reset=*/ 8);
//U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, /* clock=*/ 14, /* data=*/ 13, /* CS=*/ 15, /* reset=*/ 16); // Feather HUZZAH ESP8266, E=clock=14, RW=data=13, RS=CS
//U8G2_ST7920_128X64_1_HW_SPI u8g2(U8G2_R0, /* CS=*/ 10, /* reset=*/ 8);
//U8G2_ST7920_128X64_1_HW_SPI u8g2(U8G2_R0, /* CS=*/ 15, /* reset=*/ 16); // Feather HUZZAH ESP8266, E=clock=14, RW=data=13, RS=CS
//U8G2_ST7528_ERC16064_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7528_ERC16064_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_EA_DOGM128_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_EA_DOGM128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_64128N_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_64128N_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_EA_DOGM132_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ U8X8_PIN_NONE);  // DOGM132 Shield
//U8G2_ST7565_EA_DOGM132_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ U8X8_PIN_NONE); // DOGM132 Shield
//U8G2_ST7565_ZOLEN_128X64_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_ZOLEN_128X64_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_LM6059_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);      // Adafruit ST7565 GLCD
//U8G2_ST7565_LM6059_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);         // Adafruit ST7565 GLCD
//U8G2_ST7565_KS0713_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);      // KS0713 controller
//U8G2_ST7565_KS0713_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);         // KS0713 controller
//U8G2_ST7565_LX12864_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_LX12864_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_ERC12864_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_ERC12864_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_ERC12864_ALT_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // contrast improved version for ERC12864
//U8G2_ST7565_ERC12864_ALT_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // contrast improved version for ERC12864
//U8G2_ST7565_NHD_C12832_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_NHD_C12832_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_NHD_C12864_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_NHD_C12864_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_JLX12864_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7565_JLX12864_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7567_PI_132X64_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 7, /* dc=*/ 9, /* reset=*/ 8);  // Pax Instruments Shield, LCD_BL=6
//U8G2_ST7567_PI_132X64_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 7, /* dc=*/ 9, /* reset=*/ 8);  // Pax Instruments Shield, LCD_BL=6
//U8G2_ST7567_JLX12864_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 7, /* dc=*/ 9, /* reset=*/ 8);  
//U8G2_ST7567_JLX12864_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 7, /* dc=*/ 9, /* reset=*/ 8);  
//U8G2_ST7567_OS12864_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 7, /* dc=*/ 9, /* reset=*/ 8);  
//U8G2_ST7567_OS12864_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 7, /* dc=*/ 9, /* reset=*/ 8);  
//U8G2_ST7567_ENH_DG128064_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); 
//U8G2_ST7567_ENH_DG128064_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); 
//U8G2_ST7567_ENH_DG128064I_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); 
//U8G2_ST7567_ENH_DG128064I_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); 
//U8G2_ST7567_64X32_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); 
//U8G2_ST7567_HEM6432_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE); 
//U8G2_ST7571_128X128_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7571_128X128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7586S_ERC240160_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST7586S_YMC240160_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST75256_JLX172104_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST75256_JLX172104_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST75256_JLX19296_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST75256_JLX19296_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST75256_JLX256128_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // Uno, Enable U8g2 16 bit mode for this display
//U8G2_ST75256_JLX256128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);             // Uno, Enable U8g2 16 bit mode for this display
//U8G2_ST75256_WO256X128_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // Uno, Enable U8g2 16 bit mode for this display
//U8G2_ST75256_WO256X128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);             // Uno, Enable U8g2 16 bit mode for this display
//U8G2_ST75256_JLX256128_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 9, /* data=*/ 8, /* cs=*/ 7, /* dc=*/ 6, /* reset=*/ 5);  // MKR Zero, Enable U8g2 16 bit mode for this display
//U8G2_ST75256_JLX256128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 7, /* dc=*/ 6, /* reset=*/ 5);  // MKR Zero, Enable U8g2 16 bit mode for this display
//U8G2_ST75256_JLX256160_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // Uno, Enable U8g2 16 bit mode for this display
//U8G2_ST75256_JLX256160_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);             // Uno, Enable U8g2 16 bit mode for this display
//U8G2_ST75256_JLX256160M_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Uno, Enable U8g2 16 bit mode for this display
//U8G2_ST75256_JLX256160M_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);                // Uno, Enable U8g2 16 bit mode for this display
//U8G2_ST75256_JLX256160_ALT_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // Uno, Enable U8g2 16 bit mode for this display
//U8G2_ST75256_JLX256160_ALT_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);             // Uno, Enable U8g2 16 bit mode for this display
//U8G2_ST75256_JLX240160_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_ST75256_JLX240160_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); 
//U8G2_ST75256_JLX25664_1_2ND_HW_I2C u8g2(U8G2_R0, /* reset=*/ 8);  // Due, 2nd I2C, enable U8g2 16 bit mode for this display
//U8G2_ST75320_JLX320240_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // Uno, Enable U8g2 16 bit mode for this display
//U8G2_ST75320_JLX320240_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);             // Uno, Enable U8g2 16 bit mode for this display
//U8G2_NT7534_TG12864R_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  
//U8G2_NT7534_TG12864R_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  
//U8G2_ST7588_JLX12864_1_SW_I2C u8g2(U8G2_R0, /* clock=*/ SCL, /* data=*/ SDA, /* reset=*/ 5);  
//U8G2_ST7588_JLX12864_1_HW_I2C u8g2(U8G2_R0, /* reset=*/ 5);
//U8G2_IST3020_ERC19264_1_6800 u8g2(U8G2_R0, 44, 43, 42, 41, 40, 39, 38, 37,  /*enable=*/ 28, /*cs=*/ 32, /*dc=*/ 30, /*reset=*/ 31); // Connect WR pin with GND
//U8G2_IST3020_ERC19264_1_8080 u8g2(U8G2_R0, 44, 43, 42, 41, 40, 39, 38, 37,  /*enable=*/ 29, /*cs=*/ 32, /*dc=*/ 30, /*reset=*/ 31); // Connect RD pin with 3.3V
//U8G2_IST3020_ERC19264_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_IST7920_128X128_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // Round display
//U8G2_IST7920_128X128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // Round display
//U8G2_LC7981_160X80_1_6800 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RW with GND
//U8G2_LC7981_160X160_1_6800 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RW with GND
//U8G2_LC7981_240X128_1_6800 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RW with GND
//U8G2_LC7981_240X64_1_6800 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 18, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RW with GND
//U8G2_SED1520_122X32_1 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*dc=*/ A0, /*e1=*/ A3, /*e2=*/ A2, /* reset=*/  A4);   // Set R/W to low!
//U8G2_T6963_240X128_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable/wr=*/ 17, /*cs/ce=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RD with +5V, FS0 and FS1 with GND
//U8G2_T6963_256X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable/wr=*/ 17, /*cs/ce=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RD with +5V, FS0 and FS1 with GND
//U8G2_T6963_160X80_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable/wr=*/ 17, /*cs/ce=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RD with +5V, FS0 and FS1 with GND
//U8G2_T6963_128X64_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable/wr=*/ 17, /*cs/ce=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RD with +5V, FS0 and FS1 with GND
//U8G2_T6963_128X64_ALT_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable/wr=*/ 17, /*cs/ce=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect RD with +5V, FS0 and FS1 with GND
//U8G2_SED1330_240X128_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect /RD = E with +5V, enable is /WR = RW, FG with GND, 14=Uno Pin A0
//U8G2_SED1330_240X128_1_6800 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7,  /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // A0 is dc pin, /WR = RW = GND, enable is /RD = E
//U8G2_RA8835_NHD_240X128_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7, /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // Connect /RD = E with +5V, enable is /WR = RW, FG with GND, 14=Uno Pin A0
//U8G2_RA8835_NHD_240X128_1_6800 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7,  /*enable=*/ 17, /*cs=*/ 14, /*dc=*/ 15, /*reset=*/ 16); // A0 is dc pin, /WR = RW = GND, enable is /RD = E
//U8G2_UC1601_128X32_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); 
//U8G2_UC1601_128X32_1_3W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* reset=*/ 8);
//U8G2_UC1604_JLX19264_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); 
//U8G2_UC1604_JLX19264_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  
//U8G2_UC1608_ERC24064_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // SW SPI, Due ERC24064-1 Test Setup
//U8G2_UC1608_DEM240064_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // SW SPI, Due ERC24064-1 Test Setup
//U8G2_UC1608_ERC240120_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); 
//U8G2_UC1608_240X128_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // SW SPI, Due ERC24064-1 Test Setup
//U8G2_UC1610_EA_DOGXL160_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/  U8X8_PIN_NONE);
//U8G2_UC1610_EA_DOGXL160_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/  U8X8_PIN_NONE);
//U8G2_UC1611_EA_DOGM240_1_2ND_HW_I2C u8g2(U8G2_R0, /* reset=*/ 8); // Due, 2nd I2C, DOGM240 Test Board
//U8G2_UC1611_EA_DOGM240_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);   // SW SPI, Due DOGXL240 Test Board
//U8G2_UC1611_EA_DOGXL240_1_2ND_HW_I2C u8g2(U8G2_R0, /* reset=*/ 8);    // Due, 2nd I2C, DOGXL240 Test Board
//U8G2_UC1611_EA_DOGXL240_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);   // SW SPI, Due DOGXL240 Test Board
//U8G2_UC1611_EW50850_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7,  /*enable=*/ 18, /*cs=*/ 3, /*dc=*/ 16, /*reset=*/ 17); // 240x160, Connect RD/WR1 pin with 3.3V, CS is aktive high
//U8G2_UC1611_CG160160_1_8080 u8g2(U8G2_R0, 8, 9, 10, 11, 4, 5, 6, 7,  /*enable=*/ 18, /*cs=*/ 3, /*dc=*/ 16, /*reset=*/ 17); // Connect WR1 and CD1 pin with 3.3V, connect CS0 with cs, WR0 with enable, CD with dc
//U8G2_UC1611_IDS4073_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Enable U8g2 16Bit Mode 
//U8G2_UC1611_IDS4073_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);        // Enable U8g2 16Bit Mode 
//U8G2_UC1617_JLX128128_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_UC1617_JLX128128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);
//U8G2_UC1638_160X128_1_4W_HW_SPI u8g2(U8G2_R2, /* cs=*/ 2, /* dc=*/ 3, /* reset=*/ 4);  // Not tested 
//U8G2_SSD1606_172X72_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);     // eInk/ePaper Display
//U8G2_SSD1607_200X200_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);    // eInk/ePaper Display, original LUT from embedded artists
//U8G2_SSD1607_GD_200X200_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Good Display
//U8G2_SSD1607_WS_200X200_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // Waveshare
//U8G2_IL3820_296X128_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8); // WaveShare 2.9 inch eInk/ePaper Display, enable 16 bit mode for this display!
//U8G2_IL3820_V2_296X128_1_4W_SW_SPI u8g2(U8G2_R0, /* clock=*/ 13, /* data=*/ 11, /* cs=*/ 10, /* dc=*/ 9, /* reset=*/ 8);  // ePaper Display, lesser flickering and faster speed, enable 16 bit mode for this display!
//U8G2_LS013B7DH03_128X128_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ U8X8_PIN_NONE, /* reset=*/ 8);   // there is no DC line for this display
//U8G2_LS027B7DH01_400X240_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ U8X8_PIN_NONE, /* reset=*/ 8);   // there is no DC line for this display, SPI Mode 2
//U8G2_LS027B7DH01_M0_400X240_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ U8X8_PIN_NONE, /* reset=*/ 8);    // there is no DC line for this display, SPI Mode 0
//U8G2_LS013B7DH05_144X168_1_4W_HW_SPI u8g2(U8G2_R0, /* cs=*/ 10, /* dc=*/ U8X8_PIN_NONE, /* reset=*/ 8);   // there is no DC line for this display
//U8G2_ST7511_AVD_320X240_1_8080 u8g2(U8G2_R0, 13, 11, 2, 3, 4, 5, 6, A4, /*enable/WR=*/ 7, /*cs=*/ 10, /*dc=*/ 9, /*reset=*/ 8); // Enable U8g2 16Bit Mode and connect RD pin with 3.3V/5V

//U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, 52, 51, 53, /* reset=*/ U8X8_PIN_NONE);
U8G2_ST7920_128X64_1_SW_SPI u8g2(U8G2_R0, D5, D7, D10, /* reset=*/ U8X8_PIN_NONE);

// End of constructor list

// The array below contains a XBM bitmap.
// This bitmap will be written to SD card as an example.
// The bitmap in the file will be loaded and displayed on the screen

#define u8g2_logo_97x51_width 97
#define u8g2_logo_97x51_height 51
static const unsigned char u8g2_logo_97x51_bits[] U8X8_PROGMEM = {
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x3c, 0x80, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0x00,
   0x00, 0x00, 0x3c, 0x80, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfe,
   0x03, 0x00, 0x00, 0x3c, 0x80, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0xff, 0x03, 0x00, 0x00, 0x3c, 0x80, 0x07, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x80, 0xcf, 0x07, 0x00, 0x00, 0x3c, 0x80, 0x07, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x80, 0x83, 0x07, 0x00, 0x00, 0x3c, 0x80, 0x07, 0xf8, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x81, 0x07, 0x00, 0x00, 0x3c, 0x80, 0x07, 0xfc, 0x03,
   0x1c, 0x00, 0x3e, 0x1c, 0xc0, 0x03, 0x00, 0x00, 0x3c, 0x80, 0x07, 0xff,
   0x07, 0x7f, 0x80, 0xff, 0x3f, 0xe0, 0x01, 0x00, 0x00, 0x3c, 0x80, 0x07,
   0xff, 0x8f, 0xff, 0xc1, 0xff, 0x3f, 0xf0, 0x00, 0x00, 0x00, 0x3c, 0x80,
   0x87, 0xff, 0xdf, 0xff, 0xc1, 0xc3, 0x07, 0x7c, 0x00, 0x00, 0x00, 0x3c,
   0x80, 0x87, 0x0f, 0xfe, 0xff, 0xe3, 0x81, 0x03, 0x1e, 0x00, 0x00, 0x00,
   0x3c, 0x80, 0xc7, 0x07, 0xfc, 0xe3, 0xe3, 0x81, 0x07, 0x0f, 0x00, 0x00,
   0x00, 0x3c, 0x80, 0xc7, 0x07, 0xf8, 0xc1, 0xe7, 0x81, 0x87, 0xff, 0x07,
   0x00, 0x00, 0x3c, 0x80, 0xc7, 0x03, 0xf0, 0x80, 0xe7, 0xc3, 0x87, 0xff,
   0x07, 0x00, 0x00, 0x3c, 0x80, 0xc7, 0x03, 0x70, 0x80, 0xc7, 0xe7, 0x83,
   0xff, 0x07, 0x00, 0x00, 0x3c, 0x80, 0xc7, 0x03, 0x78, 0x80, 0xc7, 0xff,
   0x03, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x80, 0xc7, 0x03, 0xf8, 0xc0, 0x87,
   0xff, 0x01, 0x00, 0x00, 0x00, 0x00, 0x3c, 0x80, 0xc7, 0x07, 0xfc, 0xc1,
   0xc7, 0x7f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3c, 0xc0, 0x87, 0x0f, 0xfe,
   0xff, 0xe3, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x78, 0xc0, 0x83, 0xff,
   0xdf, 0xff, 0xe3, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xf1, 0x03,
   0xff, 0x8f, 0xff, 0xe1, 0xff, 0x07, 0x00, 0x00, 0x00, 0x00, 0xf0, 0xff,
   0x01, 0xfe, 0x0f, 0xff, 0xc0, 0xff, 0x0f, 0x00, 0x00, 0x00, 0x00, 0xe0,
   0xff, 0x00, 0xfc, 0x03, 0x7c, 0xc0, 0xff, 0x1f, 0x00, 0x00, 0x00, 0x00,
   0x80, 0x3f, 0x00, 0xf8, 0x01, 0x00, 0xe0, 0x01, 0x1e, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x00, 0x1e, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf0, 0x00, 0x1e, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x20, 0xf0, 0xc7, 0x0f,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0xe0, 0xff,
   0x0f, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0xc0,
   0xff, 0x03, 0x00, 0x00, 0x00, 0x00, 0xfc, 0xff, 0xff, 0xff, 0xff, 0xff,
   0x01, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf8, 0xff, 0xff, 0xff, 0xff,
   0xff, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x60, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x24, 0x20, 0x00,
   0x00, 0x08, 0x46, 0x02, 0x00, 0x80, 0xc0, 0x40, 0x00, 0x0c, 0x6e, 0x6a,
   0xc0, 0xa4, 0x48, 0x04, 0xaa, 0xac, 0x8c, 0xaa, 0xac, 0x00, 0x6a, 0xa4,
   0xaa, 0x20, 0xea, 0xa4, 0x64, 0x66, 0xaa, 0x46, 0x4a, 0x8a, 0x00, 0x4c,
   0xa4, 0xaa, 0x20, 0xaa, 0xa2, 0x44, 0x2a, 0xaa, 0x28, 0xaa, 0x4c, 0x00,
   0xe8, 0xa8, 0x6c, 0xc4, 0xa4, 0x42, 0xee, 0x2a, 0xcc, 0x26, 0x6c, 0xe8,
   0x00, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
   0x00, 0x00, 0x00 };

// This procedure writes XBM data to the SD card.
void writeFile(const char *name, uint8_t w, uint8_t h, const uint8_t *bitmap) {
  uint8_t x;
  uint8_t y;

  Serial.println();
  Serial.println("writing file...");
  /*
  File myFile = SD.open(name, FILE_WRITE);
  if (myFile) {
    myFile.write(w);      // first byte is the width of the bitmap
    myFile.write(h);      // second byte is the height of the bitmap
    w = (w+7)/8;
    // Write the XBM data in the following loops
    for( y = 0; y < h; y++ ) {
      for( x = 0; x < w; x++ ) {
        myFile.write(u8x8_pgm_read(bitmap));
        bitmap++;
      }    
    }
    myFile.close();
    Serial.println("write done.");
  } 
  else {
    Serial.println("write error.");
  }
  */
}

// This procedure will draw a bitmap at the given position x,y
// The bitmap is loaded on the fly from a file "filename" from SD card.

void drawFile(u8g2_int_t x, u8g2_int_t y, const char *filename) {
  uint8_t w;
  uint8_t h;
  uint8_t b;
  uint8_t mask;
  uint8_t len;
  u8g2_int_t xpos;
  Serial.println("reading file...");
  File myFile = SD.open(filename);
  Serial.println("File read...");
  //u8g2.setFont(u8g2_font_ncenB14_tr);
  //u8g2.drawStr( 0, 20, "Draw image...");
  if (myFile) {
    w = myFile.read();        // read the dimension of the bitmap
    h = myFile.read();
    while( h > 0 ) {          // handle all lines of the bitmap
      xpos = x;
      len = w;                // len will contain the horizontal number of pixel
      mask = 1;
      b = myFile.read();      // load the first 8 pixel into "b"
      while(len > 0) {        // draw all pixel of one line
        /*
        Serial.print("x = ");
        Serial.print(xpos);
        Serial.print(" y = ");
        Serial.print(y);
        Serial.print(" b = ");
        Serial.print(b);
        Serial.print(" m = ");
        Serial.print(mask);
        Serial.print(" len = ");
        Serial.print(len);
        */
        if ( b & mask ) {     // check one pixel
          u8g2.setDrawColor(1);
          u8g2.drawPixel(xpos,y);
          //Serial.println(" pixel = 1");
        } else {
          u8g2.setDrawColor(0);
          u8g2.drawPixel(xpos,y);
          //Serial.println(" pixel = 0");          
        }
        xpos++;               // calculate next x pos of the pixel
        mask <<= 1;           // update the mask by shifting it 1 bit to the left ie x2
        if ( mask == 0 )      // after 8 shifts it becomes all 0s
        {
          mask = 1;           // revert mask to 00000001 and ...
          b = myFile.read();  // ... load the next 8 pixel values from the file
        }
        len--;                // decrease the horizontal width (remaining pixel)
        //delay(500);
      }
      y++;                    // goto next line
      h--;                    // decrease the number of remaining lines
    }
    myFile.close();           // all done, close the file
    Serial.println("file closed.");
  }
  u8g2.setDrawColor(1);       // restore color
}

void setup() {

  // Open serial communications and wait for port to open:
  Serial.begin(115200);
  while (!Serial) {
    ; // wait for serial port to connect. Needed for native USB port only
  }  

  Serial.println();
  Serial.println("Starting u8g2");
  u8g2.begin();
  u8g2.clearDisplay();
  u8g2.setFont(u8g2_font_helvR10_tr);
  u8g2.firstPage();
  do {
    u8g2.setCursor(0,20);
    u8g2.println("U8G2 started");
  } while(u8g2.nextPage());
  delay(1000);

  //Serial.println();
  Serial.println("Starting Initialization of SD");

  if (!SD.begin(D9)) {
    Serial.println("initialization failed!");
    while (1);
  }
  Serial.println("initialization done.");

  //SD.begin(9);

  u8g2.begin();
  u8g2.firstPage();
  do {
    u8g2.setCursor(0,20);
    u8g2.println("SD started");
  } while(u8g2.nextPage());
  //delay(1000);

  // only to ensure that there is some example data on the SD card...
  writeFile("u8g2.bin", u8g2_logo_97x51_width, u8g2_logo_97x51_height, u8g2_logo_97x51_bits);

}

void loop() {

  u8g2.clearDisplay();
  u8g2.setFont(u8g2_font_helvR10_tr);
  u8g2.firstPage();
  do {
    Serial.println("Read from SD:");
    u8g2.drawStr(0,20,"Read from SD:");

    drawFile(0, 20, "u8g2.bin");

    //delay(1000);
  } while ( u8g2.nextPage() );
  delay(1000);
  Serial.println("Next loop");
}

[hicksan]

I got this to work in the end.

Problem 1: The esp8266 has to be introduced as a different board type in the 'board manager' on the Arduino IDE. What it doesn't tell you is that this brings in a whole different set of standard libraries - like its own versions of SD.h and SdFat.h. Arduino is smart and when it encounters multiple libraries with the same name it will try to choose the most appropriate one. So if it know you are using an "esp8266" processor it will give preference to one in an "esp8266..." directory. But not if the directory is named "ESP8266SDFAT". in that instance it reverts to the Arduino standard Sd / SdFat library - and all kinds of compatability compile errors get thrown at you.

Two possible solutions:

1. Delete the old Arduino libraries. Then there is no conflict.
2. Rename the directory of the new esp8266 library from "ESP8266SDFAT" to "SdFat". Then it can figure out all by itself which is the right one.

Problem 2: My SD card still hogs the SPI bus and conflicts with the ST7920 display. I noticed that esp8266 cards are helpfully labelled with two sets of SPI pins. Sets 11-13 and 5-7. So I thought putting the Sd card reader on 11-13 and the ST7920 on 5-7 would solve this up front. It didn't; they still conflicted - whichever is active locks the other out.

I solved this by moving the ST7920 display onto other non-SPI pins. In this case I set CLK as D4 and MOSI as D3. I left CS as D10. After editing the constructor accordingly - it all worked fine.

I hope this helps somebody.

[olikraus]

Thanks for reporting. :+1:

[hicksan]

Unfortunately I really need to use those extra pins because the ESP8266 has so few. I have invested in a more expensive SD card reader so the ST7920 and the SD and other devices can share the SPI bus. Unfortunately this hasn't worked. The bus locking is no longer the issue but I have discovered that LoadFromSD demo program doesn't work: every time u8g2.begin() is called it stops the SD from working and every time SD.begin(D10) is called it stops the ST7920. By using lots of extra .begin statements I got it partly to work, but then I found: (1) the drawFile() subroutine is within a u8g2 page write process which then gets interrupted (2) any drawStr or drawPixel command causes the output to revert to random Chinese characters. It looks to me like an array somewhere is overflowing, and I cannot get this example to work. I am using the Neu Rah Arduino menu system, which relies on this library and uses these draw commands.

[olikraus]

It you share pins between sd card and display, then you MUST use the HW_SPI constructor from U8g2. In you initial example you have used the SW_SPI constructor. Using the HW_SPI constructor is a precondition to make it work. However, even then it may not work, because display and sdcard may require different speed. It might be required to set the bus speed (u8g2.setBusClock()) manually every time you want to access your display.

[hicksan]

IT WORKED PERFECTLY. Both this test sketch and my actual working sketch. Just by changing the constructor line from SW to HW and removing software pin references. Thank you so much. You are an amazing and wonderful person, Oliver. Thankyouthankyouthankyou.

[AnHardt]

Don't use ST7920 with other devices on the same SPI bus. The ST7920s CS pin is broken by design. See datasheet page 26 paragraph 2.

[hicksan]

It's working fine for me with an ST7920, SD card reader and MCP2515 all sharing the same SPI bus.

Your document link crashed two browsers though, lost all my open pages and triggered lots of virus warnings from my firewall.