#381 Add Lilygo S3 board (untested with hardware)

CMakeLists.txt

@@ -22,6 +22,7 @@ set(app_sources "src/epdiy.c"
                 "src/board/epd_board.c"
                 "src/board/epd_board_common.c"
                 "src/board/epd_board_lilygo_t5_47.c"
+                "src/board/lilygo_board_s3.c"
                 "src/board/epd_board_v2_v3.c"
                 "src/board/epd_board_v4.c"
                 "src/board/epd_board_v5.c"

examples/lilygo_s3/CMakeLists.txt

@@ -0,0 +1,4 @@
+cmake_minimum_required(VERSION 3.16.0)
+set(EXTRA_COMPONENT_DIRS "../../")
+include($ENV{IDF_PATH}/tools/cmake/project.cmake)
+project(dragon_example)

examples/lilygo_s3/README.md

@@ -0,0 +1,11 @@
+A demo showing a Full-Screen Image
+==================================
+
+This demo is temporary only to test Lilygo new S3 display:
+https://github.com/Xinyuan-LilyGO/LilyGo-EPD47/issues/93
+
+*The image size is chosen to fit a 1200 * 825 display!*
+
+(so the dragon is too big for this one but it doesn't matter for this test)
+Image by David REVOY / CC BY (https://creativecommons.org/licenses/by/3.0)
+https://commons.wikimedia.org/wiki/File:Durian_-_Sintel-wallpaper-dragon.jpg

examples/lilygo_s3/main/CMakeLists.txt

@@ -0,0 +1,3 @@
+set(app_sources "main.c")
+
+idf_component_register(SRCS ${app_sources} REQUIRES epdiy)

examples/lilygo_s3/main/main.c

@@ -0,0 +1,47 @@
+/* Simple firmware for a ESP32 displaying a static image on an EPaper Screen */
+
+#include "esp_heap_caps.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+
+#include "dragon.h"
+#include "epd_highlevel.h"
+#include "epdiy.h"
+
+EpdiyHighlevelState hl;
+
+// This demo is only for new Lilygo S3 board
+#define DEMO_BOARD lilygo_board_s3
+
+
+void idf_loop() {
+    EpdRect dragon_area = { .x = 0, .y = 0, .width = dragon_width, .height = dragon_height };
+
+    int temperature = 25;
+
+    epd_poweron();
+    epd_fullclear(&hl, temperature);
+
+    epd_copy_to_framebuffer(dragon_area, dragon_data, epd_hl_get_framebuffer(&hl));
+
+    enum EpdDrawError _err = epd_hl_update_screen(&hl, MODE_GC16, temperature);
+    epd_poweroff();
+    // 10 secs delay
+    vTaskDelay(pdMS_TO_TICKS(10000));
+}
+
+void idf_setup() {
+    epd_init(&DEMO_BOARD, &ED047TC1, EPD_LUT_64K);
+    epd_set_vcom(1560); // No idea what is the best but doesn't matter much for now
+    hl = epd_hl_init(EPD_BUILTIN_WAVEFORM);
+}
+
+#ifndef ARDUINO_ARCH_ESP32
+void app_main() {
+    idf_setup();
+
+    while (1) {
+        idf_loop();
+    };
+}
+#endif

examples/lilygo_s3/main/main.ino

@@ -0,0 +1,30 @@
+/**
+ * This is the Arduino wrapper for the "Demo" example.
+ * Please go to the main.c for the main example file.
+ *
+ * This example was developed for the ESP IoT Development Framework (IDF).
+ * You can still use this code in the Arduino IDE, but it may not look
+ * and feel like a classic Arduino sketch.
+ * If you are looking for an example with Arduino look-and-feel,
+ * please check the other examples.
+ */
+
+// Important: These are C functions, so they must be declared with C linkage!
+extern "C" {
+void idf_setup();
+void idf_loop();
+}
+
+void setup() {
+    if (psramInit()) {
+        Serial.println("\nThe PSRAM is correctly initialized");
+    } else {
+        Serial.println("\nPSRAM does not work");
+    }
+
+    idf_setup();
+}
+
+void loop() {
+    idf_loop();
+}