Прошло 2 года.

lib/epdiy/examples/www-image/main/settings.h

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+// WiFi configuration:
+#define ESP_WIFI_SSID ""
+#define ESP_WIFI_PASSWORD ""
+
+// Affects the gamma to calculate gray (lower is darker/higher contrast)
+// Nice test values: 0.9 1.2 1.4 higher and is too bright
+double gamma_value = 0.7;
+
+// - - - - Display configuration - - - - - - - - -
+// EPD Waveform should match your EPD for good grayscales
+#define WAVEFORM EPD_BUILTIN_WAVEFORM
+#define DISPLAY_ROTATION EPD_ROT_LANDSCAPE
+// - - - - end of Display configuration  - - - - -
+
+// Deepsleep configuration
+#define MILLIS_DELAY_BEFORE_SLEEP 2000
+#define DEEPSLEEP_MINUTES_AFTER_RENDER 6
+
+// Image URL and jpg settings. Make sure to update WIDTH/HEIGHT if using loremflickr
+// Note: Only HTTP protocol supported (Check README to use SSL secure URLs) loremflickr
+#define IMG_URL ("https://loremflickr.com/1024/768")
+
+// idf >= 4.3 needs VALIDATE_SSL_CERTIFICATE set to true for https URLs
+// Please check the README to understand how to use an SSL Certificate
+// Note: This makes a sntp time sync query for cert validation  (It's slower)
+// IMPORTANT: idf updated and now when you use Internet requests you need to server cert
+// verification
+//            heading ESP-TLS in
+//            https://newreleases.io/project/github/espressif/esp-idf/release/v4.3-beta1
+#define VALIDATE_SSL_CERTIFICATE true
+// To make an insecure request please check Readme
+
+// Alternative non-https URL:
+// #define IMG_URL "http://img.cale.es/jpg/fasani/5e636b0f39aac"
+
+// Jpeg: Adds dithering to image rendering (Makes grayscale smoother on transitions)
+#define JPG_DITHERING true
+
+// As default is 512 without setting buffer_size property in esp_http_client_config_t
+#define HTTP_RECEIVE_BUFFER_SIZE 1986
+
+#define DEBUG_VERBOSE true