/* * Simple helper program enabling EPD power to allow for easier VCOM calibration. * * This is only needed for boards V5 or lower! **/ #include #include #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(); }