Add libraries, picocalc notes.

libraries/TFT_eSPI/examples/Generic/Local_Custom_Fonts/Local_Custom_Fonts.ino

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+/*
+  Example for TFT_eSPI library
+
+  This example shows the use of a Adafruit_GFX custom font with a
+  character code range of 32 - 255, this means accented characters
+  (amongst others) are available.
+
+  The custom font file is attached to this sketch as a header file. The
+  font data has been created following the instructions here:
+  https://www.youtube.com/watch?v=L8MmTISmwZ8
+
+  Note that online converters for Adafruit_GFX compatible fonts are
+  available but these typically only use characters in the range 32-127,
+  and thus do not include the accented characters. These online converters
+  can however still be used with this sketch but the example characters
+  used must be changed.
+
+  The Arduino IDE uses UTF8 encoding for these characters. The TFT_eSPI
+  library also expects characters in the range 128 to 255 to be UTF-8
+  encoded. See link here for details:
+
+  https://playground.arduino.cc/Code/UTF-8
+
+  To summarise, UTF-8 characters are encoded as more than 1 byte so care must
+  be taken:
+
+     char c = 'µ';          // Wrong
+     char bad[4] = "5µA";   // Wrong
+     char good[] = "5µA";   // Good
+     String okay = "5µA";   // Good
+
+  Created by Bodmer 08/02/19
+
+  Make sure LOAD_GFXFF is defined in the used User_Setup file
+  within the library folder.
+
+  #########################################################################
+  ###### DON'T FORGET TO UPDATE THE User_Setup.h FILE IN THE LIBRARY ######
+  ######   TO SELECT YOUR DISPLAY TYPE, PINS USED AND ENABLE FONTS   ######
+  #########################################################################
+*/
+
+#define TEST_TEXT "ßäöü ñâàå"   // Text that will be printed on screen in the font
+//#define TEST_TEXT "Hello"     // Text that will be printed on screen in the font
+
+#include "SPI.h"
+#include "TFT_eSPI.h"
+
+// The custom font file attached to this sketch must be included
+#include "MyFont.h"
+
+// Stock font and GFXFF reference handle
+#define GFXFF 1
+
+// Easily remembered name for the font
+#define MYFONT32 &myFont32pt8b
+
+// Use hardware SPI
+TFT_eSPI tft = TFT_eSPI();
+
+void setup(void) {
+
+  Serial.begin(250000);
+  
+  tft.begin();
+
+  tft.setRotation(1);
+
+}
+
+void loop() {
+
+  // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
+  // Show custom fonts
+  // >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
+
+  // Where font sizes increase the screen is not cleared as the larger fonts overwrite
+  // the smaller one with the background colour.
+
+  // We can set the text datum to be Top, Middle, Bottom vertically and Left, Centre
+  // and Right horizontally. These are the text datums that can be used:
+  // TL_DATUM = Top left (default)
+  // TC_DATUM = Top centre
+  // TR_DATUM = Top right
+  // ML_DATUM = Middle left
+  // MC_DATUM = Middle centre <<< This is used below
+  // 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
+
+  //Serial.println();
+
+  // Set text datum to middle centre (MC_DATUM)
+  tft.setTextDatum(MC_DATUM);
+
+  // Set text colour to white with black background
+  // Unlike the stock Adafruit_GFX library, the TFT_eSPI library DOES optionally draw
+  // the background colour for the custom and Free Fonts when using drawString()
+  tft.setTextColor(TFT_WHITE, TFT_BLACK);      // White characters on black background
+  //tft.setTextColor(TFT_WHITE);               // or white characters, no background
+
+  tft.fillScreen(TFT_BLUE);                    // Clear screen
+  tft.setFreeFont(MYFONT32);                   // Select the font
+  tft.drawString("MyFont 32", 160, 60, GFXFF); // Print the name of the font
+  tft.setFreeFont(MYFONT32);                   // Select the font
+  tft.drawString(TEST_TEXT, 160, 140, GFXFF);  // Print the test text in the custom font
+  delay(2000);
+
+  // Setting textDatum does nothing when using tft.print
+  tft.fillScreen(TFT_BLUE);  // Clear screen
+  tft.setCursor(0,60);       // To be compatible with Adafruit_GFX the cursor datum is always bottom left
+  tft.print("âäàå");         // Using tft.print means text background is NEVER rendered
+  delay(2000);
+  
+  // Reset text padding to zero (default)
+  tft.setTextPadding(0);
+}