Added initial support for TTGO-Tdisplay board (#676)

README.md

@@ -48,6 +48,7 @@ LoLin32lite + [LoraNode32-Lite shield](https://github.com/hallard/LoLin32-Lite-L
 - Pyom: WiPy
 - WeMos: LoLin32, LoLin32 Lite, WeMos D32, [Wemos32 Oled](https://www.instructables.com/id/ESP32-With-Integrated-OLED-WEMOSLolin-Getting-Star/)
 - Crowdsupply: [TinyPICO](https://www.crowdsupply.com/unexpected-maker/tinypico)
+- TTGO: [T-Display](https://www.aliexpress.com/item/33048962331.html)
 - Generic ESP32
 
 Depending on board hardware following features are supported:

platformio_orig.ini

@@ -20,6 +20,7 @@ halfile = generic.h
 ;halfile = ttgofox.h
 ;halfile = ttgobeam.h
 ;halfile = ttgobeam10.h
+;halfile = ttgotdisplay.h
 ;halfile = fipy.h
 ;halfile = lopy.h
 ;halfile = lopy4.h

src/display.cpp

@@ -53,7 +53,7 @@ QRCode qrcode;
 #if (HAS_DISPLAY) == 1
 OBDISP ssoled;
 #elif (HAS_DISPLAY) == 2
-TFT_eSPI tft = TFT_eSPI();
+TFT_eSPI tft = TFT_eSPI(MY_DISPLAY_WIDTH, MY_DISPLAY_HEIGHT);
 #else
 #error Unknown display type specified in hal file
 #endif

src/hal/ttgotdisplay.h

@@ -0,0 +1,55 @@
+// clang-format off
+// upload_speed 1500000
+// board esp32dev
+
+#ifndef _TTGOTDISPLAY_H
+#define _TTGOTDISPLAY_H
+
+#include <stdint.h>
+
+#define DISABLE_BROWNOUT 1 // comment out if you want to keep brownout feature
+
+#define HAS_DISPLAY 2      // TFT-LCD, support work in progess, not ready yet
+#define MY_DISPLAY_FLIP  1 // use if display is rotated
+
+#define HAS_LED NOT_A_PIN  // no on board LED (?)
+#define HAS_BUTTON (35)    // on board button A
+
+// power management settings
+#define BAT_MEASURE_ADC ADC1_GPIO34_CHANNEL // battery probe GPIO pin -> ADC1_CHANNEL_6
+#define BAT_VOLTAGE_DIVIDER 2.605f           // voltage divider
+
+// Display Settings
+#define MY_DISPLAY_WIDTH 135
+#define MY_DISPLAY_HEIGHT 240
+#define MY_DISPLAY_INVERT 1
+
+// setting for TTGO T-display
+#define USER_SETUP_LOADED 1
+#define ST7789_DRIVER 1
+
+#define CGRAM_OFFSET
+
+#define TFT_MOSI GPIO_NUM_19 // SPI
+#define TFT_SCLK GPIO_NUM_18 // SPI
+#define TFT_CS   GPIO_NUM_5  // Chip select control
+#define TFT_DC   GPIO_NUM_16 // Data Command control
+#define TFT_RST  GPIO_NUM_23 // Reset
+#define TFT_BL   GPIO_NUM_4  // LED back-light
+
+#define TFT_RGB_ORDER TFT_BGR  // Colour order Blue-Green-Red
+
+#define LOAD_GLCD   // Font 1. Original Adafruit 8 pixel font needs ~1820 bytes in FLASH
+#define LOAD_FONT2  // Font 2. Small 16 pixel high font, needs ~3534 bytes in FLASH, 96 characters
+#define LOAD_FONT4  // Font 4. Medium 26 pixel high font, needs ~5848 bytes in FLASH, 96 characters
+#define LOAD_FONT6  // Font 6. Large 48 pixel font, needs ~2666 bytes in FLASH, only characters 1234567890:-.apm
+#define LOAD_FONT7  // Font 7. 7 segment 48 pixel font, needs ~2438 bytes in FLASH, only characters 1234567890:-.
+#define LOAD_FONT8  // Font 8. Large 75 pixel font needs ~3256 bytes in FLASH, only characters 1234567890:-.
+//#define LOAD_FONT8N // Font 8. Alternative to Font 8 above, slightly narrower, so 3 digits fit a 160 pixel TFT
+#define LOAD_GFXFF  // FreeFonts. Include access to the 48 Adafruit_GFX free fonts FF1 to FF48 and custom fonts
+#define SMOOTH_FONT
+
+#define SPI_FREQUENCY  40000000
+#define SPI_READ_FREQUENCY 6000000
+
+#endif