Прошло 2 года.

lib/epdiy/examples/calibration_helper/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(vcom_calibration_helper)

lib/epdiy/examples/calibration_helper/main/CMakeLists.txt

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

lib/epdiy/examples/calibration_helper/main/main.c

@@ -0,0 +1,42 @@
+/*
+ * Simple helper program enabling EPD power to allow for easier VCOM calibration.
+ *
+ * This is only needed for boards V5 or lower!
+ **/
+
+#include <stdio.h>
+#include <string.h>
+#include "esp_heap_caps.h"
+#include "esp_log.h"
+#include "freertos/FreeRTOS.h"
+#include "freertos/task.h"
+#include "sdkconfig.h"
+
+#include "epdiy.h"
+
+// choose the default demo board depending on the architecture
+#ifdef CONFIG_IDF_TARGET_ESP32
+#define DEMO_BOARD epd_board_v6
+#elif defined(CONFIG_IDF_TARGET_ESP32S3)
+#define DEMO_BOARD epd_board_v7
+#endif
+
+void enable_vcom() {
+    epd_init(&DEMO_BOARD, &ED097TC2, EPD_LUT_64K);
+    ESP_LOGI("main", "waiting for one second before poweron...");
+    vTaskDelay(1000);
+    ESP_LOGI("main", "enabling VCOMM...");
+    epd_poweron();
+    ESP_LOGI(
+        "main",
+        "VCOMM enabled. You can now adjust the on-board trimmer to the VCOM value specified on the "
+        "display."
+    );
+    while (1) {
+        vTaskDelay(1000);
+    };
+}
+
+void app_main() {
+    enable_vcom();
+}