Add libraries, picocalc notes.

libraries/TFT_eSPI/examples/Smooth Fonts/LittleFS/Font_Demo_1/Font_Demo_1.ino

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+/*
+  There are four different methods of plotting anti-aliased fonts to the screen.
+
+  This sketch uses method 1, using tft.print() and tft.println() calls.
+
+  In some cases the sketch shows what can go wrong too, so read the comments!
+  
+  The font is rendered WITHOUT a background, but a background colour needs to be
+  set so the anti-aliasing of the character is performed correctly. This is because
+  characters are drawn one by one.
+  
+  This method is good for static text that does not change often because changing
+  values may flicker. The text appears at the tft cursor coordinates.
+
+  It is also possible to "print" text directly into a created sprite, for example using
+  spr.println("Hello"); and then push the sprite to the screen. That method is not
+  demonstrated in this sketch.
+  
+*/
+//  The fonts used are in the sketch data folder, press Ctrl+K to view.
+
+//  Upload the fonts and icons to LittleFS (must set at least 1M for LittleFS) using the
+//  "Tools"  "ESP8266 LittleFS Data Upload" menu option in the IDE.
+//  To add this option follow instructions here for the ESP8266:
+//  https://github.com/earlephilhower/arduino-esp8266littlefs-plugin
+
+//  Close the IDE and open again to see the new menu option.
+
+//  A processing sketch to create new fonts can be found in the Tools folder of TFT_eSPI
+//  https://github.com/Bodmer/TFT_eSPI/tree/master/Tools/Create_Smooth_Font/Create_font
+
+//  This sketch uses font files created from the Noto family of fonts:
+//  https://www.google.com/get/noto/
+
+#define AA_FONT_SMALL "NotoSansBold15"
+#define AA_FONT_LARGE "NotoSansBold36"
+
+// Font files are stored in Flash FS
+#include <FS.h>
+#include <LittleFS.h>
+#define FlashFS LittleFS
+
+#include <SPI.h>
+#include <TFT_eSPI.h>       // Hardware-specific library
+
+TFT_eSPI tft = TFT_eSPI();
+
+
+void setup(void) {
+
+  Serial.begin(250000);
+
+  tft.begin();
+
+  tft.setRotation(0);
+
+  if (!LittleFS.begin()) {
+    Serial.println("Flash FS initialisation failed!");
+    while (1) yield(); // Stay here twiddling thumbs waiting
+  }
+  Serial.println("\n\Flash FS available!");
+  
+  bool font_missing = false;
+  if (LittleFS.exists("/NotoSansBold15.vlw")    == false) font_missing = true;
+  if (LittleFS.exists("/NotoSansBold36.vlw")    == false) font_missing = true;
+
+  if (font_missing)
+  {
+    Serial.println("\nFont missing in Flash FS, did you upload it?");
+    while(1) yield();
+  }
+  else Serial.println("\nFonts found OK.");
+}
+
+
+void loop() {
+
+  tft.fillScreen(TFT_BLACK);
+
+  tft.setTextColor(TFT_WHITE, TFT_BLACK); // Set the font colour AND the background colour
+                                          // so the anti-aliasing works
+
+  tft.setCursor(0, 0); // Set cursor at top left of screen
+
+
+  // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
+  // Small font
+  // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
+
+  tft.loadFont(AA_FONT_SMALL, LittleFS); // Must load the font first
+
+  tft.println("Small 15pt font"); // println moves cursor down for a new line
+
+  tft.println(); // New line
+
+  tft.print("ABC"); // print leaves cursor at end of line
+
+  tft.setTextColor(TFT_CYAN, TFT_BLACK);
+  tft.println("1234"); // Added to line after ABC
+
+  tft.setTextColor(TFT_YELLOW, TFT_BLACK);
+  // print stream formatting can be used,see:
+  // https://www.arduino.cc/en/Serial/Print
+  int ivalue = 1234;
+  tft.println(ivalue);       // print as an ASCII-encoded decimal
+  tft.println(ivalue, DEC);  // print as an ASCII-encoded decimal
+  tft.println(ivalue, HEX);  // print as an ASCII-encoded hexadecimal
+  tft.println(ivalue, OCT);  // print as an ASCII-encoded octal
+  tft.println(ivalue, BIN);  // print as an ASCII-encoded binary
+
+  tft.println(); // New line
+  tft.setTextColor(TFT_MAGENTA, TFT_BLACK);
+  float fvalue = 1.23456;
+  tft.println(fvalue, 0);  // no decimal places
+  tft.println(fvalue, 1);  // 1 decimal place
+  tft.println(fvalue, 2);  // 2 decimal places
+  tft.println(fvalue, 5);  // 5 decimal places
+
+  delay(5000);
+
+  // Get ready for the next demo while we have this font loaded
+  tft.fillScreen(TFT_BLACK);
+  tft.setCursor(0, 0); // Set cursor at top left of screen
+  tft.setTextColor(TFT_WHITE, TFT_BLACK);
+  tft.println("Wrong and right ways to");
+  tft.println("print changing values...");
+
+  tft.unloadFont(); // Remove the font to recover memory used
+
+
+  // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
+  // Large font
+  // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
+
+  tft.loadFont(AA_FONT_LARGE, LittleFS); // Load another different font
+
+  //tft.fillScreen(TFT_BLACK);
+  
+  // Draw changing numbers - does not work unless a filled rectangle is drawn over the old text
+  for (int i = 0; i <= 20; i++)
+  {
+    tft.setCursor(50, 50);
+    tft.setTextColor(TFT_GREEN, TFT_BLACK); // TFT_BLACK is used for anti-aliasing only
+                                            // By default background fill is off
+    tft.print("      "); // Overprinting old number with spaces DOES NOT WORK!
+    tft.setCursor(50, 50);
+    tft.print(i / 10.0, 1);
+
+    // Adding a parameter "true" to the setTextColor() function fills character background
+    // This extra parameter is only for smooth fonts!
+    tft.setTextColor(TFT_GREEN, TFT_BLACK, true);
+    tft.setCursor(50, 90);
+    tft.print(i / 10.0, 1);
+    
+    delay (200);
+  }
+
+  delay(5000);
+
+  // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
+  // Large font text wrapping
+  // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
+
+  tft.fillScreen(TFT_BLACK);
+  
+  tft.setTextColor(TFT_YELLOW, TFT_BLACK); // Change the font colour and the background colour
+
+  tft.setCursor(0, 0); // Set cursor at top left of screen
+
+  tft.println("Large font!");
+
+  tft.setTextWrap(true); // Wrap on width
+  tft.setTextColor(TFT_CYAN, TFT_BLACK);
+  tft.println("Long lines wrap to the next line");
+
+  tft.setTextWrap(false, false); // Wrap on width and height switched off
+  tft.setTextColor(TFT_MAGENTA, TFT_BLACK);
+  tft.println("Unless text wrap is switched off");
+
+  tft.unloadFont(); // Remove the font to recover memory used
+
+  delay(8000);
+}

libraries/TFT_eSPI/examples/Smooth Fonts/LittleFS/Font_Demo_1/Notes.ino

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+/*
+
+Information notes only:
+======================
+
+//These are the text plotting alignment (reference datum point)
+
+TL_DATUM = Top left (default)
+TC_DATUM = Top centre
+TR_DATUM = Top right
+
+ML_DATUM = Middle left
+MC_DATUM = Middle centre
+MR_DATUM = Middle right
+
+BL_DATUM = Bottom left
+BC_DATUM = Bottom centre
+BR_DATUM = Bottom right
+
+L_BASELINE = Left character baseline (Line the 'A' character would sit on)
+C_BASELINE = Centre character baseline
+R_BASELINE = Right character baseline
+
+// Basic colours already defined:
+
+TFT_BLACK       0x0000
+TFT_NAVY        0x000F
+TFT_DARKGREEN   0x03E0
+TFT_DARKCYAN    0x03EF
+TFT_MAROON      0x7800
+TFT_PURPLE      0x780F
+TFT_OLIVE       0x7BE0
+TFT_LIGHTGREY   0xC618
+TFT_DARKGREY    0x7BEF
+TFT_BLUE        0x001F
+TFT_GREEN       0x07E0
+TFT_CYAN        0x07FF
+TFT_RED         0xF800
+TFT_MAGENTA     0xF81F
+TFT_YELLOW      0xFFE0
+TFT_WHITE       0xFFFF
+TFT_ORANGE      0xFDA0
+TFT_GREENYELLOW 0xB7E0
+TFT_PINK        0xFC9F
+
+
+
+
+
+
+
+
+
+
+ 
+ */