Прошло 2 года.

lib/epdiy/examples/http-server/README.md

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+# HTTP server
+
+Runs an HTTP server that will draw images on the screen.  
+Useful for setting up a small digital frame that can be remotely controlled.  
+
+## Config
+1. In `main/server.h`, edit `WIFI_SSID` and `WIFI_PASSWORD` to match your wifi config
+2. In `main/main.c`, edit `n_epd_setup` to refer to the right EPD screen
+
+## Running
+flash (`idf.py flash`), then connect the EPDiy to a power source (computer is fine).  
+The endpoints are:
+1. `GET /`, prints the screen temp / height / width as headers
+2. `POST /clear`, clears the screen
+3. `POST /draw`, expects:
+   1. a body that is a binary stream already encoded to EPDiy's standards (like the one in `dragon.h`).
+   2. Headers `width`, `height`
+   3. Optional headers `x`,`y` (default to 0)
+   4. Optional header `clear`, if set to nonzero integer will force-clear the screen before drawing
+
+## Helper script
+`send_image.py` is a friendlier client.
+```bash
+$ ./send_image.py ESP_IP info
+EpdInfo(width=1024, height=768, temperature=20)
+
+$ ./send_image.py ESP_IP clear
+# Clears the screen
+
+$ ./send_image.y ESP_IP draw /tmp/spooder-man.png
+# Draws on screen
+```
+Thanks to argparse, all arguments are visible with `--help`.  
+Requires `requests` and `PIL` (or Pillow)