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https://github.com/Bodmer/TFT_eSPI.git
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Add XPT2046 touch controller
supports esp8266 + RPi displays OO
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Max
163
User_Setups/Setup10_RPi_touch_ILI9486.h
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163
User_Setups/Setup10_RPi_touch_ILI9486.h
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// USER DEFINED SETTINGS
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// Set driver type, fonts to be loaded, pins used and SPI control method etc
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//
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// See the User_Setup_Select.h file if you wish to be able to define multiple
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// setups and then easily select which setup file is used by the compiler.
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//
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// If this file is editted correctly then all the library example sketches should
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// run without the need to make any more changes for a particular hardware setup!
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// ##################################################################################
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//
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// Section 0. Call up the right driver file and any options for it
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//
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// ##################################################################################
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// Only define one driver, the other ones must be commented out
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//#define ILI9341_DRIVER
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//#define ST7735_DRIVER
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//#define ILI9163_DRIVER
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//#define S6D02A1_DRIVER
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#define RPI_ILI9486_DRIVER // 20MHz maximum SPI
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// to enable XPT2046 touch controller, define TOUCH_CS
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// For ST7735 ONLY, define the type of display, originally this was based on the
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// colour of the tab on the screen protector film but this is not always true, so try
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// out the different options below if the screen does not display graphics correctly,
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// e.g. colours wrong, mirror images, or tray pixels at the edges.
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// Comment out ALL BUT ONE of these options for a ST7735 display driver, save this
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// this User_Setup file, then rebuild and upload the sketch to the board again:
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//#define ST7735_INITB
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//#define ST7735_GREENTAB
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//#define ST7735_GREENTAB2
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//#define ST7735_GREENTAB3
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//#define ST7735_REDTAB
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//#define ST7735_BLACKTAB
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// For ST7735 ONLY, define the pixel width and height in portrait orientation
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//#define TFT_WIDTH 128
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//#define TFT_HEIGHT 160
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//#define TFT_HEIGHT 128
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// ##################################################################################
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//
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// Section 1. Define the pins that are used to interface with the display here
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//
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// ##################################################################################
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// We must use hardware SPI, a minimum of 3 GPIO pins is needed.
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// Typical setup for NodeMCU ESP-12 is :
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//
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// Display SDO/MISO to NodeMCU pin D6 (or leave disconnected if not reading TFT)
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// Display LED to NodeMCU pin VIN (or 5V, see below)
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// Display SCK to NodeMCU pin D5
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// Display SDI/MOSI to NodeMCU pin D7
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// Display DC (or AO)to NodeMCU pin D3
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// Display RESET to NodeMCU pin D4 (or RST, see below)
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// Display CS to NodeMCU pin D8 (or GND, see below)
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// Display GND to NodeMCU pin GND (0V)
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// Display VCC to NodeMCU 5V or 3.3V
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//
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// The TFT RESET pin can be connected to the NodeMCU RST pin or 3.3V to free up a control pin
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//
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// With some displays such as the ILI9341 the TFT CS pin can be connected to GND if no more
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// SPI deivces (e.g. an SD Card) are connected, in this case comment out the #define TFT_CS
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// line below so it is NOT defined. Other displays such at the ST7735 require the TFT CS pin
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// to be toggled during setup, so in these cases the TFT_CS line must be defined and connected.
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//
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// The NodeMCU D0 pin can be used for RST
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//
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// See Section 2. below if DC or CS is connected to D0
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//
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// Note: only some versions of the NodeMCU provide the USB 5V on the VIN pin
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// If 5V is not available at a pin you can use 3.3V but backlight brightness
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// will be lower.
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// ###### EDIT THE PIN NUMBERS IN THE LINES FOLLOWING TO SUIT YOUR SETUP ######
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// ModeMCU
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#define TFT_CS PIN_D8 // Chip select control pin D8
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#define TFT_DC PIN_D3 // Data Command control pin
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//#define TFT_RST PIN_D4 // Reset pin (could connect to NodeMCU RST, see next line)
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#define TFT_RST -1 // Set TFT_RST to -1 if the display RESET is connected to NodeMCU RST or 3.3V
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#define TOUCH_CS D4 // Chip select pin (T_CS) of touch screen controller XPT2046
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//#define TFT_WR PIN_D2 // Write strobe for modified Raspberry Pi TFT only
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// ESP32 Dev board (planned, not supported yet)
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//#define TFT_CS 5 // Chip select control pin
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//#define TFT_DC 2 // Data Command control pin
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//#define TFT_RST 4 // Reset pin (could connect to Arduino RESET pin)
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//#define TFT_RST -1 // Set TFT_RST to -1 if display RESET is connected to ESP32 board RST
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// ##################################################################################
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//
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// Section 2. Define the way the DC and/or CS lines are driven
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//
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// ##################################################################################
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// Normally the library uses direct register access for the DC and CS lines for speed
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// If D0 (GPIO16) is used for CS or DC then a different slower method must be used
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// Uncomment one line if D0 is used for DC or CS
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// DC on D0 = 6% performance penalty at 40MHz SPI running graphics test
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// CS on D0 = 2% performance penalty at 40MHz SPI running graphics test
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// #define D0_USED_FOR_DC
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// #define D0_USED_FOR_CS
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// ##################################################################################
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//
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// Section 3. Define the fonts that are to be used here
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//
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// ##################################################################################
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// Comment out the #defines below with // to stop that font being loaded
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// The ESP8366 had plenty of memory so commenting out fonts is not normally necessary
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// If all fonts are loaded the extra FLASH space required is about 17Kbytes...
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// To save FLASH space only enable the fonts you need!
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#define LOAD_GLCD // Font 1. Original Adafruit 8 pixel font needs ~1820 bytes in FLASH
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#define LOAD_FONT2 // Font 2. Small 16 pixel high font, needs ~3534 bytes in FLASH, 96 characters
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#define LOAD_FONT4 // Font 4. Medium 26 pixel high font, needs ~5848 bytes in FLASH, 96 characters
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#define LOAD_FONT6 // Font 6. Large 48 pixel font, needs ~2666 bytes in FLASH, only characters 1234567890:-.apm
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#define LOAD_FONT7 // Font 7. 7 segment 48 pixel font, needs ~2438 bytes in FLASH, only characters 1234567890:.
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#define LOAD_FONT8 // Font 8. Large 75 pixel font needs ~3256 bytes in FLASH, only characters 1234567890:-.
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#define LOAD_GFXFF // FreeFonts. Include access to the 48 Adafruit_GFX free fonts FF1 to FF48 and custom fonts
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// ##################################################################################
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//
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// Section 4. Not used
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//
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// ##################################################################################
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// ##################################################################################
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//
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// Section 5. Other options
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//
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// ##################################################################################
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// Define the SPI clock frequency
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// With an ILI9341 display 40MHz works OK, 80MHz sometimes fails
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// With a ST7735 display more than 27MHz may not work (spurious pixels and lines)
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// With an ILI9163 display TBD MHz works OK,
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// #define SPI_FREQUENCY 1000000
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// #define SPI_FREQUENCY 5000000
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#define SPI_FREQUENCY 10000000
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// #define SPI_FREQUENCY 20000000
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// #define SPI_FREQUENCY 27000000 // Actually sets it to 26.67MHz = 80/3
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// #define SPI_FREQUENCY 40000000 // Maximum to use SPIFFS
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// #define SPI_FREQUENCY 80000000
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#define SPI_TOUCH_FREQUENCY 2500000
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// Comment out the following #define if "SPI Transactions" do not need to be
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// supported. Tranaction support is required if other SPI devices are connected.
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// When commented out the code size will be smaller and sketches will
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// run slightly faster, so leave it commented out unless you need it!
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// Transaction support is needed to work with SD library but not needed with TFT_SdFat
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// #define SUPPORT_TRANSACTIONS
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@@ -0,0 +1,76 @@
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#include "FS.h"
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#include <SPI.h>
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#include <TFT_eSPI.h>
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TFT_eSPI tft = TFT_eSPI();
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#define CALIBRATION_FILE "/calibrationData"
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void setup(void) {
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uint16_t calibrationData[4];
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uint8_t calDataOK = 0;
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Serial.begin(115200);
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Serial.println("starting");
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tft.init();
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tft.setRotation(2);
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tft.fillScreen((0xFFFF));
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tft.setCursor(20, 0, 2);
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tft.setTextColor(TFT_BLACK, TFT_WHITE); tft.setTextSize(1);
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tft.println("calibration run");
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// check file system
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if (!SPIFFS.begin()) {
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Serial.println("formating file system");
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SPIFFS.format();
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SPIFFS.begin();
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}
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// check if calibration file exists
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if (SPIFFS.exists(CALIBRATION_FILE)) {
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File f = SPIFFS.open(CALIBRATION_FILE, "r");
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if (f) {
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if (f.readBytes((char *)calibrationData, 12) == 12)
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calDataOK = 1;
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f.close();
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}
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}
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if (calDataOK) {
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// calibration data valid
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tft.setTouch(calibrationData);
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} else {
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// data not valid. recalibrate
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tft.calibrateTouch(calibrationData, TFT_WHITE, TFT_RED, 15);
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// store data
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File f = SPIFFS.open(CALIBRATION_FILE, "w");
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if (f) {
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f.write((const unsigned char *)calibrationData, 12);
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f.close();
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}
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}
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tft.fillScreen((0xFFFF));
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}
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void loop() {
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uint16_t x, y;
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static uint16_t color;
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if (tft.getTouch(&x, &y) {
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tft.setCursor(5, 5, 2);
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tft.printf("x: %i ", x);
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tft.setCursor(5, 20, 2);
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tft.printf("y: %i ", y);
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tft.drawPixel(x, y, color);
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color += 155;
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}
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}
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