S3Box v3 panel id & update example (see #569)

Author: tobozo

examples/HowToUse/1_simple_use/1_simple_use.ino

@@ -22,6 +22,7 @@
 // #define LGFX_ESP_WROVER_KIT                // Espressif ESP-WROVER-KIT
 // #define LGFX_ESP32_S3_BOX                  // Espressif ESP32-S3-BOX
 // #define LGFX_ESP32_S3_BOX_LITE             // Espressif ESP32-S3-BOX Lite
+// #define LGFX_ESP32_S3_BOX_V3               // Espressif ESP32-S3-BOX-3/3B
 // #define LGFX_WIFIBOY_PRO                   // WiFiBoy Pro
 // #define LGFX_WIFIBOY_MINI                  // WiFiBoy mini
 // #define LGFX_MAKERFABS_TOUCHCAMERA         // Makerfabs Touch with Camera

src/lgfx/v1_autodetect/LGFX_AutoDetect_ESP32_all.hpp

@@ -1281,7 +1281,7 @@ namespace lgfx
         constexpr _detector_ESP32_S3_BOX_V3_t(void) :
         _detector_spi_t
         { board_t::board_ESP32_S3_BOX_V3
-          , 0, 0, 0 // TODO? ILI9342C ID Checker
+          , 0x04, 0xff, 0xE3 // ILI9342C
           , 40000000, 16000000
           , GPIO_NUM_6      // MOSI
           , (gpio_num_t)-1  // MISO